B. van Calster

发表

External Validations of Cardiovascular Clinical Prediction Models: A Large-Scale Review of the Literature

Jinny G. Park, B. Wessler, J. Nelson, 2021, medRxiv.

A Mathematical Model for Interpretable Clinical Decision Support with Applications in Gynecology

Stephen P. Boyd, J. Suykens, T. Bourne, 2012, PloS one.

Development and Validation of Risk Prediction Models

B. van Calster, S. Michiels, D. Drubay, 2019, Principles and Practice of Clinical Trials.

Journal of Quantitative Analysis in Sports The Curse of Scoreless Draws in Soccer : The Relationship with a Team ' s Offensive , Defensive , and Overall Performance

Sabine Van Huffel, Tim Smits, Ben Van Calster, 2011 .

Prediction models for diagnosis and prognosis of covid-19: systematic review and critical appraisal

Richard D Riley, Gary S Collins, Maarten van Smeden, 2020, BMJ.

Simple ultrasound‐based rules for the diagnosis of ovarian cancer

D. Jurkovic, T. Bourne, B. van Calster, 2008, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Sensitivity and Specificity Can Change in Opposite Directions When New Predictive Markers Are Added to Risk Models

M. Pencina, R. D'Agostino, B. van Calster, 2014, Medical decision making : an international journal of the Society for Medical Decision Making.

Calibration of Risk Prediction Models

B. van Calster, A. Vickers, B. Van calster, 2015, Medical decision making : an international journal of the Society for Medical Decision Making.

Preoperative diagnosis of ovarian tumors using Bayesian kernel‐based methods

J. Suykens, B. van Calster, D. Timmerman, 2007, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

External Validation of Diagnostic Models to Estimate the Risk of Malignancy in Adnexal Masses

T. Bourne, B. van Calster, D. Timmerman, 2011, Clinical Cancer Research.

[Performance measures for prediction models and markers: evaluation of predictions and classifications].

M. Pencina, B. van Calster, E. Steyerberg, 2011, Revista espanola de cardiologia.

Assessing the incremental value of diagnostic and prognostic markers: a review and illustration

Hester F. Lingsma, M. Pencina, M. Kattan, 2012, European journal of clinical investigation.

Rationalizing the management of pregnancies of unknown location: temporal and external validation of a risk prediction model on 1962 pregnancies.

T. Bourne, B. van Calster, D. Timmerman, 2013, Human reproduction.

Evaluation of Markers and Risk Prediction Models

M. Pencina, B. van Calster, E. Steyerberg, 2013, Medical decision making : an international journal of the Society for Medical Decision Making.

Net reclassification improvement and integrated discrimination improvement require calibrated models: relevance from a marker and model perspective

M. Pencina, R. D'Agostino, B. van Calster, 2014, Statistics in medicine.

Artificial Intelligence Algorithms for Medical Prediction Should Be Nonproprietary and Readily Available.

G. Collins, B. van Calster, E. Steyerberg, 2019, JAMA internal medicine.

Machine learning algorithms performed no better than regression models for prognostication in traumatic brain injury.

Hester F. Lingsma, D. Nieboer, B. van Calster, 2020, Journal of clinical epidemiology.

A calibration hierarchy for risk models was defined: from utopia to empirical data.

Yvonne Vergouwe, Michael J Pencina, Ewout W Steyerberg, 2016, Journal of clinical epidemiology.

Prediction models for diagnosis and prognosis of covid-19 infection: systematic review and critical appraisal

Richard D Riley, Kym I E Snell, Gary S Collins, 2020 .

A systematic review shows no performance benefit of machine learning over logistic regression for clinical prediction models.

Jie Ma, Ewout W. Steyerberg, Gary S. Collins, 2019, Journal of clinical epidemiology.

Logistic regression model to distinguish between the benign and malignant adnexal mass before surgery: a multicenter study by the International Ovarian Tumor Analysis Group.

T. Bourne, W. Collins, B. van Calster, 2005, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Validation of models to diagnose ovarian cancer in patients managed surgically or conservatively: multicentre cohort study

T. Bourne, B. van Calster, D. Timmerman, 2020, BMJ.

Developing risk models for multicenter data using standard logistic regression produced suboptimal predictions: A simulation study

B. van Calster, D. Timmerman, L. Wynants, 2020, Biometrical journal. Biometrische Zeitschrift.

Regression shrinkage methods for clinical prediction models do not guarantee improved performance: Simulation study

B. van Calster, E. Steyerberg, M. van Smeden, 2020, Statistical methods in medical research.

Clinical Utility of Risk Models to Refer Patients with Adnexal Masses to Specialized Oncology Care: Multicenter External Validation Using Decision Curve Analysis

Dirk Timmerman, Jan Y Verbakel, Tom Bourne, 2017, Clinical Cancer Research.

Morcellation and risk of malignancy in presumed ovarian fibromas/fibrothecomas.

T. Bourne, B. van Calster, D. Timmerman, 2016, The Lancet. Oncology.

Practical guidance for applying the ADNEX model from the IOTA group to discriminate between different subtypes of adnexal tumors

T. Bourne, B. van Calster, D. Timmerman, 2015, Facts, views & vision in ObGyn.

Presurgical diagnosis of adnexal tumours using mathematical models and scoring systems: a systematic review and meta-analysis.

Dirk Timmerman, Tom Bourne, Kirsten Van Hoorde, 2014, Human reproduction update.

Strategies to diagnose ovarian cancer: new evidence from phase 3 of the multicentre international IOTA study

D Timmerman, I Vergote, L Wynants, 2014, British Journal of Cancer.

Improving strategies for diagnosing ovarian cancer: a summary of the International Ovarian Tumor Analysis (IOTA) studies

J. Kaijser, C. Van Holsbeke, L. Valentin, 2013, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Simple dichotomous updating methods improved the validity of polytomous prediction models.

Sabine Van Huffel, Dirk Timmerman, Yvonne Vergouwe, 2013, Journal of clinical epidemiology.

Assessing the discriminative ability of risk models for more than two outcome categories

Dirk Timmerman, Yvonne Vergouwe, Ewout W. Steyerberg, 2012, European Journal of Epidemiology.

The independent effect of tumor size in predicting ovarian malignancy.

B. van Calster, D. Timmerman, S. Van Huffel, 2012, European journal of obstetrics, gynecology, and reproductive biology.

Characterizing Ovarian Pathology: Refining the Performance of Ultrasonography

T. Bourne, B. van Calster, D. Timmerman, 2012, International Journal of Gynecologic Cancer.

Preoperative identification of a suspicious adnexal mass.

T. Bourne, B. van Calster, D. Timmerman, 2012, Gynecologic oncology.

Triaging women with ovarian masses for surgery: observational diagnostic study to compare RCOG guidelines with an International Ovarian Tumour Analysis (IOTA) group protocol

T. Bourne, B. van Calster, D. Timmerman, 2012, BJOG : an international journal of obstetrics and gynaecology.

Key findings from the International Ovarian Tumor Analysis (IOTA) study: an approach to the optimal ultrasound based characterisation of adnexal pathology

T. Bourne, B. van Calster, D. Timmerman, 2012, Australasian journal of ultrasound in medicine.

Extending the c‐statistic to nominal polytomous outcomes: the Polytomous Discrimination Index

Sabine Van Huffel, Dirk Timmerman, Yvonne Vergouwe, 2012, Statistics in medicine.

Imaging in gynaecology: How good are we in identifying endometriomas?

T. Bourne, B. van Calster, D. Timmerman, 2009, Facts, views & vision in ObGyn.

Prospective Internal Validation of Mathematical Models to Predict Malignancy in Adnexal Masses: Results from the International Ovarian Tumor Analysis Study

S. Van Huffel, C. Van Holsbeke, L. Valentin, 2009, Clinical Cancer Research.

Discrimination between benign and malignant adnexal masses by specialist ultrasound examination versus serum CA-125.

Patrick Neven, Sabine Van Huffel, Dirk Timmerman, 2007, Journal of the National Cancer Institute.

External Validation of Mathematical Models to Distinguish Between Benign and Malignant Adnexal Tumors: A Multicenter Study by the International Ovarian Tumor Analysis Group

Sabine Van Huffel, Dirk Timmerman, Enrico Ferrazzi, 2007, Clinical Cancer Research.

Inclusion of CA-125 does not improve mathematical models developed to distinguish between benign and malignant adnexal tumors.

Sabine Van Huffel, Dirk Timmerman, Ignace Vergote, 2007, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Three myths about risk thresholds for prediction models

B. van Calster, E. Steyerberg, D. Timmerman, 2019, BMC Medicine.

Key steps and common pitfalls in developing and validating risk models

B. van Calster, B. Calster, L. Wynants, 2017, BJOG : an international journal of obstetrics and gynaecology.

Subjective ultrasound assessment, the ADNEX model and ultrasound‐guided tru‐cut biopsy to differentiate disseminated primary ovarian cancer from metastatic non‐ovarian cancer

B. van Calster, D. Timmerman, E. Epstein, 2016, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Discrimination ability of prediction models for ordinal outcomes: Relationships between existing measures and a new measure

Yvonne Vergouwe, Ewout W Steyerberg, Ben Van Calster, 2012, Biometrical journal. Biometrische Zeitschrift.

Collagen plug sealing of iatrogenic fetal membrane defects after fetoscopic surgery for congenital diaphragmatic hernia

B. van Calster, J. Deprest, L. Lewi, 2014, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Prediction models for diagnosis and prognosis of covid-19: systematic review and critical appraisal

G. Heinze, G. Collins, B. van Calster, 2020, BMJ.

Methodology over metrics: current scientific standards are a disservice to patients and society

G. Collins, B. van Calster, R. Riley, 2021, Journal of Clinical Epidemiology.

Demystifying AI in healthcare

B. van Calster, L. Smits, L. Wynants, 2020, BMJ.

International Endometrial Tumor Analysis (IETA) terminology in women with postmenopausal bleeding and sonographic endometrial thickness ≥ 4.5 mm: agreement and reliability study

B. De Moor, B. van Calster, D. Timmerman, 2018, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Machine Learning Compared With Pathologist Assessment.

Maarten van Smeden, Rolf H H Groenwold, Ben Van Calster, 2018, JAMA.

Predicting the outcome of pregnancies of unknown location: Bayesian networks with expert prior information compared to logistic regression.

S Van Huffel, D Timmerman, B De Moor, 2006, Human reproduction.

The clinical performance of the M4 decision support model to triage women with a pregnancy of unknown location as at low or high risk of complications.

T. Bourne, B. van Calster, D. Timmerman, 2016, Human reproduction.

Does a prediction model for pregnancy of unknown location developed in the UK validate on a US population?

K. Barnhart, T. Bourne, B. van Calster, 2010, Human Reproduction.

Decision Curves, Calibration, and Subgroups.

B. van Calster, E. Steyerberg, A. Vickers, 2017, Journal of Clinical Oncology.

Ultrasound‐based risk model for preoperative prediction of lymph‐node metastases in women with endometrial cancer: model‐development study

T. Bourne, B. van Calster, D. Timmerman, 2019, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Clinical implications of intra‐ and interobserver reproducibility of transvaginal sonographic measurement of gestational sac and crown–rump length at 6–9 weeks' gestation

S. Van Huffel, D. Van Schoubroeck, D. Timmerman, 2011, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Uterine and quality of life changes in postmenopausal women with an asymptomatic tamoxifen-thickened endometrium randomized to continuation of tamoxifen or switching to anastrozole

B. van Calster, D. Timmerman, P. Neven, 2010, Menopause.

Flawed external validation study of the ADNEX model to diagnose ovarian cancer

D Timmerman, B Van Calster, T Bourne, 2016, Gynecologic oncology reports.

A note on estimating the Cox‐Snell R2 from a reported C statistic (AUROC) to inform sample size calculations for developing a prediction model with a binary outcome

G. Collins, B. van Calster, R. Riley, 2020, Statistics in medicine.

Stellate ganglion block for the management of hot flashes and sleep disturbances in breast cancer survivors: an uncontrolled experimental study with 24 weeks of follow-up.

J. Menten, B. van Calster, P. Neven, 2012, Annals of oncology : official journal of the European Society for Medical Oncology.

Adaptive sample size determination for the development of clinical prediction models

B. van Calster, E. Steyerberg, D. Timmerman, 2021, Diagnostic and Prognostic Research.

Treatment of breast cancer during pregnancy: an observational study.

T. Fehm, B. van Calster, M. lenhard, 2012, The Lancet. Oncology.

Typical ultrasound features of various endometrial pathologies described using International Endometrial Tumor Analysis (IETA) terminology in women with abnormal uterine bleeding

T. Bourne, B. van Calster, D. Timmerman, 2020, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Pre-sampling ultrasound evaluation and assessment of the tissue yield during sampling improves the diagnostic reliability of office endometrial biopsy

B. van Calster, D. Timmerman, T. Van den Bosch, 2012, Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology.

Ectopic pregnancy: using the hCG ratio to select women for expectant or medical management

T. Bourne, B. De Moor, B. van Calster, 2011, Acta obstetricia et gynecologica Scandinavica.

Predicting the risk of malignancy in adnexal masses based on the Simple Rules from the International Ovarian Tumor Analysis group.

T. Bourne, B. van Calster, D. Timmerman, 2016, American Journal of Obstetrics and Gynecology.

Role of Neoadjuvant Chemotherapy in the Management of Stage IIIC–IV Ovarian Cancer: Survey Results from the Members of the European Society of Gynecological Oncology

B. van Calster, F. Amant, K. Leunen, 2012, International Journal of Gynecologic Cancer.

Adaptive sample size determination for the development of clinical prediction models

B. van Calster, E. Steyerberg, D. Timmerman, 2020, Diagnostic and Prognostic Research.

Risk of bias of prognostic models developed using machine learning: a systematic review in oncology

G. Collins, B. van Calster, L. Hooft, 2022, Diagnostic and Prognostic Research.

The Risk of Endometrial Malignancy and Other Endometrial Pathology in Women with Abnormal Uterine Bleeding: An Ultrasound-Based Model Development Study by the IETA Group

T. Bourne, B. van Calster, D. Timmerman, 2022, Gynecologic and Obstetric Investigation.

Validation of prediction models in the presence of competing risks: a guide through modern methods

Chava L. Ramspek, B. van Calster, R. Riley, 2022, BMJ.

Prognostic impact of baseline serum C‐reactive protein in patients with metastatic renal cell carcinoma (RCC) treated with sunitinib

B. van Calster, J. Zucman‐Rossi, R. Paridaens, 2014, BJU International.

Prospective study to assess fluid accumulation and tenosynovial changes in the aromatase inhibitor-induced musculoskeletal syndrome: 2-year follow-up data.

B. van Calster, D. Timmerman, P. Neven, 2013, Annals of oncology : official journal of the European Society for Medical Oncology.

A pictorial essay on fetal rabbit anatomy using micro‐ultrasound and magnetic resonance imaging

B. van Calster, U. Himmelreich, J. Deprest, 2014, Prenatal diagnosis.

Clinical prediction models for mortality in patients with covid-19: external validation and individual participant data meta-analysis

B. van Calster, N. Antonio-Villa, C. A. Fermín-Martínez, 2022, BMJ.

ROC curves for clinical prediction models part 3: The ROC plot: a picture that needs a 1000 words.

G. Collins, B. van Calster, E. Steyerberg, 2020, Journal of clinical epidemiology.

Tamoxifen Metabolism and Efficacy in Breast Cancer: A Prospective Multicenter Trial

B. van Calster, P. Neven, S. Van Huffel, 2018, Clinical Cancer Research.

In early-stage breast cancer, the estrogen receptor interacts with correlation between human epidermal growth factor receptor 2 status and age at diagnosis, tumor grade, and lymph node involvement.

B. van Calster, V. Van Belle, P. Neven, 2008, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Critical appraisal of artificial intelligence-based prediction models for cardiovascular disease

Spiros C. Denaxas, A. Boulesteix, B. van Calster, 2022, European heart journal.

Nonparametric estimation and inference for polytomous discrimination index

M. Pencina, B. van Calster, J. Fine, 2018, Statistical methods in medical research.

Visualizing Risk Prediction Models

B. van Calster, V. Van Belle, B. Van calster, 2015, PloS one.

Managing pregnancy of unknown location based on initial serum progesterone and serial serum hCG levels: development and validation of a two‐step triage protocol

T. Bourne, B. van Calster, D. Timmerman, 2016, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

T. Bourne, B. van Calster, D. Timmerman, 2013, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Nucleosome footprinting in plasma cell-free DNA for the pre-surgical diagnosis of ovarian cancer

B. van Calster, D. Timmerman, P. Neven, 2022, NPJ genomic medicine.

Utility of pre‐operative haemoglobin concentration to guide peri‐operative blood tests for hip and knee arthroplasty: A decision curve analysis

G. Collins, B. van Calster, P. Dhiman, 2022, Transfusion medicine.

Does the presence of a Caesarean section scar affect implantation site and early pregnancy outcome in women attending an early pregnancy assessment unit?

T. Bourne, B. van Calster, D. Timmerman, 2013, Human reproduction.

Prospective study to assess short-term intra-articular and tenosynovial changes in the aromatase inhibitor-associated arthralgia syndrome.

B. van Calster, D. Timmerman, P. Neven, 2008, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Prognostic factors for post-traumatic stress, anxiety and depression in women after early pregnancy loss: a multi-centre prospective cohort study

B. van Calster, D. Timmerman, T. Bourne, 2022, BMJ Open.

Interpreting area under the receiver operating characteristic curve

B. van Calster, E. Steyerberg, Anne de Hond, 2022, The Lancet Digital Health.

A deep-learning-enabled diagnosis of ovarian cancer.

B. van Calster, W. Froyman, J. Verbakel, 2022, The Lancet. Digital health.

Prospective cross-validation of three methods of predicting failing pregnancies of unknown location.

T. Bourne, B. van Calster, D. Timmerman, 2007, Human reproduction.

Re: "Diagnostic Accuracies of the Ultrasound and Magnetic Resonance Imaging ADNEX Scoring Systems for Ovarian Adnexal Mass: Systematic Review and Meta-Analysis".

B. van Calster, D. Timmerman, L. Valentin, 2021, Academic radiology.

Diurnal cortisol profiles and evening cortisol in post-pubertal adolescents scoring high on the Children's Depression Inventory.

B. van Calster, B. V. D. Van den Bergh, 2009, Psychoneuroendocrinology.

Prediction models: stepwise development and simultaneous validation is a step back.

George E. Heinze, B. van Calster, E. Steyerberg, 2021, Journal of clinical epidemiology.

Prediction models for diagnosis and prognosis of covid-19: systematic review and critical appraisal

G. Heinze, G. Collins, B. van Calster, 2020, BMJ.

Diagnostic protocols for the management of pregnancy of unknown location: a systematic review and meta‐analysis

T. Bourne, B. van Calster, D. Timmerman, 2018, BJOG : an international journal of obstetrics and gynaecology.

Editorial comment

B. van Calster, J. Deprest, F. Amant, 2014, Gynecological Surgery.

Risk assessment for endometrial cancer in women with abnormal vaginal bleeding: Results from the prospective IETA‐1 cohort study

T. Bourne, B. van Calster, D. Timmerman, 2022, International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Clinical study investigating the role of lymphadenectomy, surgical castration and adjuvant hormonal treatment in endometrial stromal sarcoma

B. van Calster, P. Neven, S. Van Huffel, 2007, British Journal of Cancer.

Pelvic Exenterations for Gynecological Malignancies: A Study of 36 Cases

E. van Limbergen, B. van Calster, I. Vergote, 2012, International Journal of Gynecologic Cancer.

Minimal reporting improvement after peer review in reports of COVID-19 prediction models: systematic review

G. Collins, B. van Calster, E. Steyerberg, 2022, Journal of Clinical Epidemiology.

Characteristics of patients with cervical cancer during pregnancy: a multicenter matched cohort study. An initiative from the International Network on Cancer, Infertility and Pregnancy

B. van Calster, R. Rouzier, F. Amant, 2019, International Journal of Gynecologic Cancer.

Long-term cognitive and cardiac outcomes after prenatal exposure to chemotherapy in children aged 18 months or older: an observational study.

L. Lagae, B. van Calster, F. Amant, 2012, The Lancet. Oncology.

Burnout, well-being and defensive medical practice among obstetricians and gynaecologists in the UK: cross-sectional survey study

T. Bourne, B. van Calster, D. Timmerman, 2019, BMJ Open.

Random‐effects meta‐analysis of the clinical utility of tests and prediction models

R D Riley, D Timmerman, L Wynants, 2018, Statistics in medicine.

Methodological conduct of prognostic prediction models developed using machine learning in oncology: a systematic review

G. Collins, B. van Calster, L. Hooft, 2022, BMC Medical Research Methodology.

Transparent reporting of multivariable prediction models developed or validated using clustered data: TRIPOD-Cluster checklist

G. Collins, B. van Calster, J. Reitsma, 2023, BMJ.

Net benefit approaches to the evaluation of prediction models, molecular markers, and diagnostic tests

Ewout W Steyerberg, Andrew J Vickers, Ben Van Calster, 2016, British Medical Journal.

A simple, step-by-step guide to interpreting decision curve analysis

Andrew J. Vickers, Ewout W. Steyerberg, Ben van Calster, 2019, Diagnostic and Prognostic Research.

Defining safe criteria to diagnose miscarriage: prospective observational multicentre study

Dirk Timmerman, Tom Bourne, Ben Van Calster, 2015, BMJ : British Medical Journal.

Oncological management and obstetric and neonatal outcomes for women diagnosed with cancer during pregnancy: a 20-year international cohort study of 1170 patients.

B. van Calster, P. Zola, F. Amant, 2018, The Lancet. Oncology.

Refining Ovarian Cancer Test accuracy Scores (ROCkeTS): protocol for a prospective longitudinal test accuracy study to validate new risk scores in women with symptoms of suspected ovarian cancer

T. Bourne, B. van Calster, D. Timmerman, 2016, BMJ Open.

Integrating pretreatment diffusion weighted MRI into a multivariable prognostic model for head and neck squamous cell carcinoma.

B. van Calster, F. De Keyzer, R. Hermans, 2014, Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology.

What determines the need to morcellate the uterus during total laparoscopic hysterectomy?

B. van Calster, D. Timmerman, S. Van Huffel, 2009, Journal of minimally invasive gynecology.

Risk prediction models for discrete ordinal outcomes: Calibration and the impact of the proportional odds assumption

Maarten van Smeden, Ben Van Calster, Michael Edlinger, 2021, Statistics in medicine.

Evaluating cut‐off levels for progesterone, β human chorionic gonadotropin and β human chorionic gonadotropin ratio to exclude pregnancy viability in women with a pregnancy of unknown location: A prospective multicenter cohort study

B. van Calster, D. Timmerman, E. Kirk, 2021, Acta obstetricia et gynecologica Scandinavica.

Pregnancy of unknown location: a consensus statement of nomenclature, definitions, and outcome.

Dirk Timmerman, George Condous, Tom Bourne, 2011, Fertility and sterility.

Nucleosome footprinting in plasma cell-free DNA for the pre-surgical diagnosis of ovarian cancer

T. Bourne, B. van Calster, D. Timmerman, 2022, npj Genomic Medicine.

General obstetrics: Failing pregnancies of unknown location: a prospective evaluation of the human chorionic gonadotrophin ratio

T. Bourne, B. van Calster, D. Timmerman, 2006, BJOG : an international journal of obstetrics and gynaecology.

Triple negative breast cancer: clinical characteristics in the different histological subtypes.

B. van Calster, P. Neven, R. Paridaens, 2013, Breast.

Reporting and Interpreting Decision Curve Analysis: A Guide for Investigators.

Ben Van Calster, Laure Wynants, Evangelia Christodoulou, 2018, European urology.

Triaging pregnancies of unknown location: the performance of protocols based on single serum progesterone or repeated serum hCG levels.

T. Bourne, B. van Calster, D. Timmerman, 2014, Human reproduction.

Prediction of ectopic pregnancy in women with a pregnancy of unknown location

S Van Huffel, D Timmerman, B Van Calster, 2007, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Prognosis of women with primary breast cancer diagnosed during pregnancy: results from an international collaborative study.

T. Fehm, B. van Calster, P. Neven, 2013, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Consequences of relying on statistical significance: Some illustrations

Gary S Collins, Ewout W Steyerberg, Tim Smits, 2018, European journal of clinical investigation.

Differences in post‐traumatic stress, anxiety and depression following miscarriage or ectopic pregnancy between women and their partners: multicenter prospective cohort study

T. Bourne, B. van Calster, D. Timmerman, 2020, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Early‐pregnancy events and subsequent antenatal, delivery and neonatal outcomes: prospective cohort study

B. Moor, T. Bourne, B. van Calster, 2019, Ultrasound in Obstetrics & Gynecology.

Performance of the American College of Obstetricians and Gynecologists' ovarian tumor referral guidelines with a multivariate index assay.

T. Bourne, B. van Calster, D. Timmerman, 2011, Obstetrics and gynecology.

Aromatase inhibitor-induced loss of grip strength is body mass index dependent: hypothesis-generating findings for its pathogenesis.

B. van Calster, D. Timmerman, P. Neven, 2011, Annals of oncology : official journal of the European Society for Medical Oncology.

Endometriomas: their ultrasound characteristics

T. Bourne, B. van Calster, D. Timmerman, 2010, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Minimum sample size for developing a multivariable prediction model using multinomial logistic regression

G. Collins, B. van Calster, R. Riley, 2022, Statistical methods in medical research.

T. Bourne, B. van Calster, D. Timmerman, 2016, Human reproduction.

Qualitative assessment of the progesterone receptor and HER2 improves the Nottingham Prognostic Index up to 5 years after breast cancer diagnosis.

B. van Calster, V. Van Belle, P. Neven, 2010, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Trebananib or placebo plus carboplatin and paclitaxel as first-line treatment for advanced ovarian cancer (TRINOVA-3/ENGOT-ov2/GOG-3001): a randomised, double-blind, phase 3 trial.

B. Monk, B. van Calster, R. Wenham, 2019, The Lancet. Oncology.

Randomized Trial of Fetal Surgery for Severe Left Diaphragmatic Hernia

B. van Calster, K. Nicolaides, A. Benachi, 2021, The New England journal of medicine.

Randomized Trial of Fetal Surgery for Moderate Left Diaphragmatic Hernia

B. van Calster, K. Nicolaides, Y. Ville, 2021, The New England journal of medicine.

Risk of complications in patients with conservatively managed ovarian tumours (IOTA5): a 2-year interim analysis of a multicentre, prospective, cohort study.

T. Bourne, B. van Calster, D. Timmerman, 2019, The Lancet. Oncology.

Subjective assessment versus ultrasound models to diagnose ovarian cancer: A systematic review and meta-analysis.

D Timmerman, B Van Calster, B. van Calster, 2016, European journal of cancer.

Neoadjuvant chemotherapy followed by interval debulking surgery in patients with serous endometrial cancer with transperitoneal spread (stage IV): a new preferred treatment?

B. van Calster, P. Neven, F. Amant, 2009, British Journal of Cancer.

Impact of predictor measurement heterogeneity across settings on the performance of prediction models: A measurement error perspective

E W Steyerberg, R H H Groenwold, B Van Calster, 2019, Statistics in medicine.

Calibration: the Achilles heel of predictive analytics

Maarten van Smeden, Andrew J. Vickers, Ewout W. Steyerberg, 2019, BMC Medicine.

Myeloid-derived suppressor cells at diagnosis may discriminate between benign and malignant ovarian tumors

B. van Calster, D. Timmerman, P. Neven, 2019, International Journal of Gynecological Cancer.

Risk Prediction for Individuals.

B. van Calster, E. Steyerberg, Frank Harrell, 2015, JAMA.

Wilms Tumor Gene 1 (WT1) is a Prognostic Marker in High-Grade Uterine Sarcoma

B. van Calster, F. Amant, A. Coosemans, 2010, International Journal of Gynecologic Cancer.

Protocol for development of a reporting guideline (TRIPOD-AI) and risk of bias tool (PROBAST-AI) for diagnostic and prognostic prediction model studies based on artificial intelligence

L. Peng, G. Collins, B. van Calster, 2021, BMJ Open.

Reporting of prognostic clinical prediction models based on machine learning methods in oncology needs to be improved

G. Collins, B. van Calster, L. Hooft, 2021, Journal of clinical epidemiology.

Subjective assessment by ultrasound is superior to the risk of malignancy index (RMI) or the risk of ovarian malignancy algorithm (ROMA) in discriminating benign from malignant adnexal masses.

B. van Calster, D. Timmerman, F. Amant, 2012, European journal of cancer.

A simulation study of sample size demonstrated the importance of the number of events per variable to develop prediction models in clustered data.

S Van Huffel, D Timmerman, W Bouwmeester, 2015, Journal of clinical epidemiology.

An evidence-based laparoscopic simulation curriculum shortens the clinical learning curve and reduces surgical adverse events

R. Aggarwal, B. van Calster, D. de Ridder, 2016, Advances in medical education and practice.

Chlamydia trachomatis infection in patients attending an Early Pregnancy Unit: Prevalence, symptoms, pregnancy location and viability

T. Bourne, B. van Calster, D. Timmerman, 2008, Acta obstetricia et gynecologica Scandinavica.

The Generalizability of Clinical Prediction Models for Patients with Acute Coronary Syndromes: Results from Independent External Validations

B. Wessler, J. Nelson, J. Park, 2021, medRxiv.

Ovarian cancer prediction in adnexal masses using ultrasound‐based logistic regression models: a temporal and external validation study by the IOTA group

S Van Huffel, D Timmerman, I Vergote, 2010, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

The impact of complaints procedures on the welfare, health and clinical practise of 7926 doctors in the UK: a cross-sectional survey

T. Bourne, B. van Calster, D. Timmerman, 2015, BMJ Open.

PET/CT in the staging of patients with a pelvic mass suspicious for ovarian cancer.

B. van Calster, D. Timmerman, P. Neven, 2013, Gynecologic oncology.

The value of laparoscopic skills courses

B. van Calster, D. Timmerman, S. Van Huffel, 2009, The Australian & New Zealand journal of obstetrics & gynaecology.

Transparent reporting of multivariable prediction models developed or validated using clustered data (TRIPOD-Cluster): explanation and elaboration

G. Collins, B. van Calster, J. Reitsma, 2023, BMJ.

Performance of Heart Failure Clinical Prediction Models: A Systematic External Validation Study

B. Wessler, J. Nelson, J. Park, 2021, medRxiv.

Assessing performance and clinical usefulness in prediction models with survival outcomes: practical guidance for Cox proportional hazards models

T. Therneau, B. van Calster, E. Steyerberg, 2022, medRxiv.

Regarding A Nomogram to Predict Osteoradionecrosis in Oral Cancer After Marginal Mandibulectomy and Radiotherapy

G. Collins, B. van Calster, 2019, The Laryngoscope.

Evaluating the risk of ovarian cancer before surgery using the ADNEX model: a multicentre external validation study

T. Bourne, B. van Calster, D. Timmerman, 2016, British Journal of Cancer.

Doctors' experiences and their perception of the most stressful aspects of complaints processes in the UK: an analysis of qualitative survey data

T. Bourne, B. van Calster, D. Timmerman, 2016, BMJ Open.

Doctors’ perception of support and the processes involved in complaints investigations and how these relate to welfare and defensive practice: a cross-sectional survey of the UK physicians

T. Bourne, B. van Calster, D. Timmerman, 2017, BMJ Open.

What is the value of preoperative bimanual pelvic examination in women undergoing laparoscopic total hysterectomy?

B. van Calster, S. Van Huffel, G. Condous, 2007, Journal of minimally invasive gynecology.

There is no role for uterine curettage in the contemporary diagnostic workup of women with a pregnancy of unknown location.

T. Bourne, B. van Calster, D. Timmerman, 2006, Human reproduction.

Predicting successful vaginal birth after Cesarean section using a model based on Cesarean scar features examined by transvaginal sonography

T. Bourne, B. van Calster, D. Timmerman, 2013, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Do levels of serum cancer antigen 125 and creatine kinase predict the outcome in pregnancies of unknown location?

S Van Huffel, D Timmerman, B Van Calster, 2005, Human reproduction.

Poor performance of clinical prediction models: the harm of commonly applied methods.

Ewout W Steyerberg, John P A Ioannidis, Hajime Uno, 2017, Journal of clinical epidemiology.

Effectiveness of a mobile preconception lifestyle programme in couples undergoing in vitro fertilisation (IVF): the protocol for the PreLiFe randomised controlled trial (PreLiFe-RCT)

B. van Calster, J. Seghers, C. Matthys, 2019, BMJ Open.

Evaluating the risk of ovarian cancer before surgery using the ADNEX model to differentiate between benign, borderline, early and advanced stage invasive, and secondary metastatic tumours: prospective multicentre diagnostic study

Dirk Timmerman, Tom Bourne, Stefano Guerriero, 2014, BMJ : British Medical Journal.

Lesion size affects diagnostic performance of IOTA logistic regression models, IOTA simple rules and risk of malignancy index in discriminating between benign and malignant adnexal masses

B. van Calster, D. Timmerman, L. Valentin, 2012, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

OC21.02: Lesion size affects the diagnostic performance of the International Ovarian Tumor Analysis (IOTA) logistic regression models, the IOTA simple rules and the risk of malignancy index to estimate the risk of malignancy in adnexal masses

B. van Calster, D. Timmerman, L. Valentin, 2012 .

ROC curves for clinical prediction models part 1: ROC plots showed no added value above the AUC when evaluating the performance of clinical prediction models.

H. Uno, G. Collins, B. van Calster, 2020, Journal of clinical epidemiology.

The impact of early pregnancy events on long-term pregnancy outcomes: a prospective cohort study.

B. De Moor, B. van Calster, D. Timmerman, 2019, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

A comparison between an ultrasound based prediction model (LR2) and the risk of ovarian malignancy algorithm (ROMA) to assess the risk of malignancy in women with an adnexal mass.

T. Bourne, B. van Calster, D. Timmerman, 2013, Gynecologic oncology.

Prognostic Value of Serum HE4 Levels and Risk of Ovarian Malignancy Algorithm Scores at the Time of Ovarian Cancer Diagnosis

T. Bourne, B. van Calster, V. Van Belle, 2014, International Journal of Gynecologic Cancer.

Screening for data clustering in multicenter studies: the residual intraclass correlation

T. Bourne, B. van Calster, D. Timmerman, 2013, BMC Medical Research Methodology.

Evaluating a New Marker for Risk Prediction Using the Test Tradeoff: An Update

B. van Calster, E. Steyerberg, S. Baker, 2012, The international journal of biostatistics.

Prognostic Value of the Progesterone Receptor by Subtype in Patients with Estrogen Receptor-Positive, HER-2 Negative Breast Cancer.

E. van Limbergen, A. Giobbie-Hurder, B. van Calster, 2018, The oncologist.

Sample size considerations and predictive performance of multinomial logistic prediction models

Maarten van Smeden, Dirk Timmerman, Ewout W Steyerberg, 2019, Statistics in medicine.

Machine Learning in Medicine.

B. van Calster, L. Wynants, 2019, New England Journal of Medicine.

[Discriminative ability, reclassification and net benefit: the predictive value of biomarkers].

M. Pencina, B. van Calster, E. Steyerberg, 2012, Nederlands tijdschrift voor geneeskunde.

Untapped potential of multicenter studies: a review of cardiovascular risk prediction models revealed inappropriate analyses and wide variation in reporting

D. Timmerman, L. Wynants, D. M. Kent, 2019, Diagnostic and Prognostic Research.

External validation of ADNEX model for diagnosing ovarian cancer: evaluating performance of differentiation between tumor subgroups

B. van Calster, B. Calster, Ku, 2017, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Does ignoring clustering in multicenter data influence the performance of prediction models? A simulation study

S Van Huffel, D Timmerman, Y Vergouwe, 2018, Statistical methods in medical research.

Assessment of protein biomarkers for preoperative differential diagnosis between benign and malignant ovarian tumors.

T. Bourne, B. van Calster, D. Timmerman, 2020, Gynecologic oncology.

Post-traumatic stress, anxiety and depression following miscarriage and ectopic pregnancy: a multi-center, prospective, cohort study.

T. Bourne, B. van Calster, D. Timmerman, 2019, American journal of obstetrics and gynecology.

Explaining Support Vector Machines: A Color Based Nomogram

Johan A. K. Suykens, Sabine Van Huffel, Ben Van Calster, 2016, PloS one.

Rationalizing the follow-up of pregnancies of unknown location.

S Van Huffel, D Timmerman, B Van Calster, 2007, Human reproduction.

Ultrasound characteristics of endometrial cancer as defined by International Endometrial Tumor Analysis (IETA) consensus nomenclature: prospective multicenter study

B. Moor, T. Bourne, B. De Moor, 2017, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Relationship between age and axillary lymph node involvement in women with breast cancer.

B. van Calster, P. Neven, S. Van Huffel, 2009, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

There is no such thing as a validated prediction model

B. van Calster, E. Steyerberg, M. van Smeden, 2023, BMC Medicine.

The randomized TOTAL-trials on fetal surgery for congenital diaphragmatic hernia: re-analysis using pooled data.

B. van Calster, K. Nicolaides, Y. Ville, 2021, American journal of obstetrics and gynecology.

Assessing calibration of multinomial risk prediction models

Sabine Van Huffel, Dirk Timmerman, Yvonne Vergouwe, 2014, Statistics in medicine.

OC14.01: Ultrasound characteristics of endometrial cancer as defined by the International Endometrial Tumor Analysis (IETA) consensus nomenclature a prospective multicentre study

T. Bourne, B. van Calster, D. Timmerman, 2017 .

Adding a single CA 125 measurement to ultrasound imaging performed by an experienced examiner does not improve preoperative discrimination between benign and malignant adnexal masses

S. Huffel, T. Bourne, B. van Calster, 2009, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

External validation of models to predict the outcome of pregnancies of unknown location: a multicentre cohort study

T. Bourne, B. van Calster, D. Timmerman, 2020, BJOG : an international journal of obstetrics and gynaecology.

Triaging women with pregnancy of unknown location using two‐step protocol including M6 model: clinical implementation study

T. Bourne, B. van Calster, D. Timmerman, 2020, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

The potential value of activin B and fibronectin for the triage of pregnancies of unknown location and prediction of first trimester viability

B. van Calster, D. Timmerman, C. Bottomley, 2018, Australasian journal of ultrasound in medicine.

The use of serum inhibin A and activin A levels in predicting the outcome of 'pregnancies of unknown location'.

Sabine Van Huffel, Dirk Timmerman, George Condous, 2009, Human reproduction.

Preoperative eye disinfection in vitrectomy surgery using antibiotic or antiseptic eyedrops.

B. van Calster, W. Spileers, J. Verhaegen, 2010, Bulletin de la Societe belge d'ophtalmologie.

External Validation of the Ovarian-Adnexal Reporting and Data System (O-RADS) Lexicon and the International Ovarian Tumor Analysis 2-Step Strategy to Stratify Ovarian Tumors Into O-RADS Risk Groups

B. van Calster, D. Timmerman, L. Valentin, 2022, JAMA oncology.

Histology obtained by needle biopsy gives additional information on the prognosis of hepatocellular carcinoma

B. van Calster, T. Roskams, F. Nevens, 2011, Hepatology research : the official journal of the Japan Society of Hepatology.

A Novel Approach to Predict the Likelihood of Specific Ovarian Tumor Pathology Based on Serum CA-125: A Multicenter Observational Study

T. Bourne, B. van Calster, D. Timmerman, 2011, Cancer Epidemiology, Biomarkers & Prevention.

Validation of the Performance of International Ovarian Tumor Analysis (IOTA) Methods in the Diagnosis of Early Stage Ovarian Cancer in a Non-Screening Population

T. Bourne, B. van Calster, D. Timmerman, 2017, Diagnostics.

A multicenter prospective external validation of the diagnostic performance of IOTA simple descriptors and rules to characterize ovarian masses.

T. Bourne, B. van Calster, D. Timmerman, 2013, Gynecologic oncology.

Benign descriptors and ADNEX in two‐step strategy to estimate risk of malignancy in ovarian tumors: retrospective validation in IOTA5 multicenter cohort

T. Bourne, B. van Calster, D. Timmerman, 2022, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Clinical information does not improve the performance of mathematical models in predicting the outcome of pregnancies of unknown location.

Sabine Van Huffel, Dirk Timmerman, George Condous, 2007, Fertility and sterility.

Are the current guidelines for surgical delay in hip fractures too rigid? A single center assessment of mortality and economics.

B. van Calster, S. Nijs, H. Hoekstra, 2018, Injury.

Impact of the availability of sonography in the acute gynecology unit

T. Bourne, B. van Calster, D. Timmerman, 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Intellectual development of childhood ALL patients: a multicenter longitudinal study

B. van Calster, S. Deprez, A. Uyttebroeck, 2017, Psycho-oncology.

Self-reported symptoms of depressed mood, trait anxiety and aggressive behavior in post-pubertal adolescents: Associations with diurnal cortisol profiles.

B. van Calster, S. Van Huffel, B. V. D. Van den Bergh, 2008, Hormones and behavior.

OC01.03: Ultrasound in diagnosis of new and recurrent borderline ovarian tumors

T. Bourne, B. van Calster, D. Timmerman, 2010 .

Hypervolume under ROC manifold for discrete biomarkers with ties

Jialiang Li, Qunqiang Feng, Ben Van Calster, 2021, Journal of Statistical Computation and Simulation.

Polytomous diagnosis of ovarian tumors as benign, borderline, primary invasive or metastatic: development and validation of standard and kernel-based risk prediction models

Sabine Van Huffel, Dirk Timmerman, Tom Bourne, 2010, BMC medical research methodology.

Statistics 'versus' machine learning: definitions are interesting (but understanding, methodology and reporting are more important).

Gary S Collins, Ewout W Steyerberg, Jan Y Verbakel, 2019, Journal of clinical epidemiology.

Diagnosing adnexal tumours before surgery: a critical appraisal of recent evidence

T. Bourne, B. van Calster, D. Timmerman, 2015 .

The Bayesian approach: a natural framework for statistical modeling

S. Van Huffel, D. Timmerman, B. Van Calster, 2007, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

An ordinal prediction model of the diagnosis of non-obstructive coronary artery and multi-vessel disease in the CARDIIGAN cohort.

B. van Calster, E. Steyerberg, H. Ulmer, 2018, International journal of cardiology.