K. Ohtakara

发表

Effect of edema on postimplant dosimetry in prostate brachytherapy using CT/MRI fusion.

H. Hoshi, T. Deguchi, O. Tanaka, 2007, International journal of radiation oncology, biology, physics.

MRI-Based Preplanning in Low-Dose-Rate Prostate Brachytherapy

H. Hoshi, T. Deguchi, O. Tanaka, 2007 .

Three-dimensional printer-generated patient-specific phantom for artificial in vivo dosimetry in radiotherapy quality assurance.

Hajime Monzen, Masataka Komori, Hiroshi Oguchi, 2017, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Early glottic cancer treatment with concurrent chemoradiotherapy with once-daily orally administered S-1

S. Naganawa, K. Ohtakara, Tamami Ono, 2021, Nagoya journal of medical science.

Clinical outcomes of single or oligo-fractionated stereotactic radiotherapy for head and neck tumors using micromultileaf collimator-based dynamic conformal arcs

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, Journal of Cancer Research and Clinical Oncology.

Preoperative embolization of upper cervical cord hemangioblastoma concomitant with venous congestion--case report.

T. Kojima, K. Ohtakara, W. Taki, 2000, Neurologia medico-chirurgica.

Impact of respiratory motion on breast tangential radiotherapy using the field-in-field technique compared to irradiation using physical wedges

H. Hoshi, S. Hayashi, K. Ohtakara, 2014, Radiology and oncology.

Comparison of pencil beam-based homogeneous vs inhomogeneous target dose planning for stereotactic body radiotherapy of peripheral lung tumors through Monte Carlo-based recalculation.

H. Hoshi, K. Ohtakara, 2015, Medical dosimetry : official journal of the American Association of Medical Dosimetrists.

Consideration of optimal isodose surface selection for target coverage in micro-multileaf collimator-based stereotactic radiotherapy for large cystic brain metastases: comparison of 90%, 80% and 70% isodose surface-based planning.

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, The British journal of radiology.

Preliminary clinical outcomes of image-guided 3-dimensional conformal radiotherapy for limited brain metastases instead of stereotactic irradiation referral.

H. Hoshi, K. Ohtakara, 2014, Anticancer research.

Cerebrospinal fluid rhinorrhea associated with untreated prolactinoma--case report.

T. Kojima, K. Ohtakara, W. Taki, 2000, Neurologia medico-chirurgica.

Early manifestation of communicating hydrocephalus after fractionated stereotactic radiotherapy for aggressive giant atypical prolactinoma.

H. Hoshi, T. Iwama, K. Ohtakara, 2014, Anticancer research.

Dosimetric comparison of 2.5 mm vs. 3.0 mm leaf width micro-multileaf collimator-based treatment systems for intracranial stereotactic radiosurgery using dynamic conformal arcs: implications for treatment planning

H. Hoshi, S. Hayashi, K. Ohtakara, 2011, Japanese Journal of Radiology.

Selective transvenous liquid embolization of a Type 1 dural arteriovenous fistula at the junction of the transverse and sigmoid sinuses. Case report.

T. Kojima, K. Ohtakara, W. Taki, 2000, Journal of neurosurgery.

Scalp vein detected using internal carotid angiography that did not result in venous sinus compromise.

T. Kojima, K. Ohtakara, W. Taki, 2000, AJNR. American journal of neuroradiology.

The Incidence and Its Associated Factors Relevant to Brain Radionecrosis That Requires Intervention Following Single or Fractionated Stereotactic Radiosurgery Using Vero4DRT for Brain Metastases

S. Naganawa, K. Ohtakara, T. Kamomae, 2022, Cureus.

Frameless Co-Registration of Biplane 2D Digital Subtraction Angiography Whole Frames and 3D Rotational Angiography-Based Cone-Beam Computed Tomography Angiogram on Dedicated Software for Stereotactic Radiosurgery of Cranial Vascular Malformations

K. Ohtakara, T. Kamomae, T. Izumi, 2022, Cureus.

Gradual Recovery from Nonambulatory Quadriparesis Caused by Metastatic Epidural Cervical Cord Compression in an Octogenarian Gallbladder Carcinoma Patient Treated with Image-Guided Three-Dimensional Conformal Radiotherapy Alone Using a Field-in-Field Technique

H. Hoshi, K. Ohtakara, 2014, Case reports in oncological medicine.

Stereotactic radiotherapy in unresectable middle-ear carcinoma - A case report

S. Hayashi, K. Ohtakara, B. Kuze, 2010 .

Direct intracranial invasion of eccrine spiradenocarcinoma of the scalp: a case report and literature review

K. Ohtakara, F. Ohka, K. Motomura, 2022, BMC Neurology.

Hepatic dysfunction after radiotherapy for primary gastric lymphoma

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, Journal of radiation research.

Cerebral cyst formation following stereotactic ablative irradiation for non-nasopharyngeal head and neck malignancies: imaging findings and relevant dosimetric parameters.

H. Hoshi, K. Ohtakara, 2014, The British journal of radiology.

Target volume geometric change and/or deviation from the cranium during fractionated stereotactic radiotherapy for brain metastases: Potential pitfalls in image guidance based on bony anatomy alignment

H. Hoshi, K. Ohtakara, 2014, Journal of medical imaging and radiation oncology.

Dose gradient analyses in Linac-based intracranial stereotactic radiosurgery using Paddick's gradient index: consideration of the optimal method for plan evaluation.

H. Hoshi, S. Hayashi, K. Ohtakara, 2011, Journal of radiation research.

BJRD14071 1..7

H. Hoshi, K. Ohtakara, 2014 .

Long-Term Tumor Control despite Late Pseudoprogression on18F-FDG-PET following Extremely Hypofractionated Stereotactic Radiotherapy for Retropharyngeal Lymph Node Metastasis from Esthesioneuroblastoma

H. Hoshi, K. Ohtakara, 2014, Case Reports in Oncology.

Stereotactic Radiotherapy Planning Using Modified Dynamic Conformal Arcs under Considering the Possibility for Amended Visual Organ Displacement Resulting from Early Tumor Shrinkage during Treatment for Perioptic Involvement of Myeloma

H. Hoshi, K. Ohtakara, 2014 .

H. Hoshi, K. Ohtakara, 2014, Case Reports in Oncology.

Significance of target location relative to the depth from the brain surface and high-dose irradiated volume in the development of brain radionecrosis after micromultileaf collimator-based stereotactic radiosurgery for brain metastases

H. Hoshi, N. Nakayama, T. Iwama, 2012, Journal of Neuro-Oncology.

Clinical comparison of positional accuracy and stability between dedicated versus conventional masks for immobilization in cranial stereotactic radiotherapy using 6-degree-of-freedom image guidance system-integrated platform.

Hidekazu Tanaka, Masashi Kitahara, Kazuhiro Ohtakara, 2012, Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology.

Characterisation of dose distribution in linear accelerator-based intracranial stereotactic radiosurgery with the dynamic conformal arc technique: consideration of the optimal method for dose prescription and evaluation.

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, The British journal of radiology.

Ten-Fraction Stereotactic Radiosurgery With Different Gross Tumor Doses and Inhomogeneities for Brain Metastasis of >10 cc: Treatment Responses Suggesting Suitable Biological Effective Dose Formula for Single and 10 Fractions

K. Ohtakara, Kojiro Suzuki, Kiyo Nakabayashi, 2023, Cureus.

Correlation of Brain Metastasis Shrinking and Deviation During 10-Fraction Stereotactic Radiosurgery With Late Sequela: Suggesting Dose Ramification Between Tumor Eradication and Symptomatic Radionecrosis

K. Ohtakara, T. Kamomae, K. Tanahashi, 2023, Cureus.

An Extremely Inhomogeneous Gross Tumor Dose is Suitable for Volumetric Modulated Arc-Based Radiosurgery with a 5-mm Leaf-Width Multileaf Collimator for Single Brain Metastasis

K. Ohtakara, Kojiro Suzuki, 2023, Cureus.

Modified Dynamic Conformal Arcs With Forward Planning for Radiosurgery of Small Brain Metastasis: Each Double Arc and Different To-and-Fro Leaf Margins to Optimize Dose Gradient Inside and Outside the Gross Tumor Boundary

K. Ohtakara, Kojiro Suzuki, 2023, Cureus.

The relation between various conformity indices and the influence of the target coverage difference in prescription isodose surface on these values in intracranial stereotactic radiosurgery.

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, The British journal of radiology.

Posterior fossa arteriovenous malformation associated with persistent primitive trigeminal artery--case report.

T. Kojima, K. Ohtakara, W. Taki, 2000, Neurologia medico-chirurgica.

Palliative radiotherapy for patients with tracheobronchial and esophageal compression due to intrathoracic malignant tumors

H. Hoshi, S. Hayashi, K. Ohtakara, 2012, Asia-Pacific journal of clinical oncology.

Effect of Edema on Postimplant Dosimetry in Prostate Brachytherapy Using CT/MRI Fusion

Masayuki Matsuo, Kazuhiro Ohtakara, Shinya Hayashi, 2007 .

Usefulness of CT-MRI fusion in radiotherapy planning for localized prostate cancer.

Kazuhiro Ohtakara, Shinya Hayashi, Hiroaki Hoshi, 2011, Journal of radiation research.

Significance of total colonoscopy screening before definitive radiotherapy for prostate cancer on the detection of anorectocolonic disease requiring intervention in advance

T. Deguchi, M. Nakano, K. Ohtakara, 2018, International journal of urology : official journal of the Japanese Urological Association.

MRI-based preplanning in low-dose-rate prostate brachytherapy.

Masayuki Matsuo, Kazuhiro Ohtakara, Shinya Hayashi, 2008, Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology.

Comparison of urethral diameters for calculating the urethral dose after permanent prostate brachytherapy

H. Hoshi, T. Deguchi, O. Tanaka, 2007, Radiation Medicine.

Stereotactic body radiation therapy for Japanese patients with localized prostate cancer: 2-year results and predictive factors for acute genitourinary toxicities.

K. Ohtakara, Y. Yoshioka, Makoto Ito, 2021, Japanese journal of clinical oncology.

Five-Fraction Stereotactic Radiosurgery With Non-Contrast-Enhanced MRI-Based Target Definition and Moderate Dose Spillage Margin for Limited Brain Metastases With Impaired Renal Function

K. Ohtakara, Kojiro Suzuki, 2023, Cureus.

Five-Year Sustained Complete Remission With Minimal Adverse Effects Following Radiosurgery for 2-cm Brain Metastasis With Deep Eloquent Location From Lung Adenocarcinoma Despite Low Marginal Dose and High 12 Gy Volume

K. Ohtakara, M. Nakao, Kojiro Suzuki, 2023, Cureus.

Twenty-Month Regression Following Concurrent Conventional Whole-Brain Irradiation and Chemoimmunotherapy for ≥3.8 cm Cerebellar Metastasis From Small Cell Lung Cancer

K. Ohtakara, M. Nakao, Sosuke Arakawa, 2023, Cureus.

Robotic Radiosurgical Boost After Whole-Brain Radiotherapy for 12 Brain Metastases: En Bloc Consecutive Irradiation With Comprehensively Optimized Single Plan for Eight Lesions Totaling 118 cc

K. Ohtakara, K. Tanahashi, Kojiro Suzuki, 2023, Cureus.

Nineteen-Month Immunity to Adverse Radiation Effects Following 5-Fraction Re-radiosurgery With 43.6 Gy for Local Progression After Prior 3-Fraction Radiosurgery for Brain Metastasis From Pan-Negative Lung Adenocarcinoma

K. Ohtakara, Kojiro Suzuki, Hideki Muramatsu, 2023, Cureus.

Volumetric-Modulated Arc-Based Re-radiosurgery With Simultaneous Reduced-Dose Whole-Brain Irradiation for Local Failures Following Prior Radiosurgery of Brain Oligometastases From Small Cell Lung Cancer

K. Ohtakara, Sosuke Arakawa, Kojiro Suzuki, 2023, Cureus.

5-Fraction Re-radiosurgery for Progression Following 8-Fraction Radiosurgery of Brain Metastases From Lung Adenocarcinoma: Importance of Gross Tumor Coverage With Biologically Effective Dose ≥80 Gy and Internal Dose Increase

K. Ohtakara, T. Kamomae, K. Tanahashi, 2023, Cureus.

Development of an x-ray-opaque-marker system for quantitative phantom positioning in patient-specific quality assurance.

S. Naganawa, K. Ohtakara, K. Okudaira, 2021, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.