Comparison of inter‐ and intraobserver agreement and reliability between three different types of placental volume measurement technique (XI VOCAL™, VOCAL™ and multiplanar) and validity in the in‐vitro setting

To compare XI VOCAL™ (eXtended Imaging Virtual Organ Computer‐aided AnaLysis) for three‐dimensional (3D) ultrasound volumetry of the placenta and of phantom objects with a rotational method using VOCAL™ and with the multiplanar method.

[1]  L. Valentin,et al.  Intraobserver and interobserver reproducibility of three‐dimensional gray‐scale and power Doppler ultrasound examinations of the cervix in pregnant women , 2005, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[2]  D. Altman,et al.  STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT , 1986, The Lancet.

[3]  E. Hafner,et al.  First‐trimester placental volume as a marker for chromosomal anomalies: preliminary results from an unselected population , 2002, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[4]  George Hripcsak,et al.  Measuring agreement in medical informatics reliability studies , 2002, J. Biomed. Informatics.

[5]  K Y Leung,et al.  Placental volume measured by three‐dimensional ultrasound in the prediction of fetal α0‐thalassemia: a preliminary report , 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[6]  K. Khan,et al.  Evaluation of a clinical test. II: Assessment of validity , 2001, BJOG : an international journal of obstetrics and gynaecology.

[7]  P. Chien,et al.  Evaluation of a clinical test. I: Assessment of reliability , 2001, BJOG : an international journal of obstetrics and gynaecology.

[8]  N. Raine-Fenning,et al.  The interobserver reliability of ovarian volume measurement is improved with three-dimensional ultrasound, but dependent upon technique. , 2003, Ultrasound in medicine & biology.

[9]  M. Duyme,et al.  Fetal lung volumetry using two‐ and three‐dimensional ultrasound , 2005, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[10]  M. Tang,et al.  Comparison of inter‐ and intraobserver agreement between three types of fetal volume measurement technique (XI VOCAL™, VOCAL™ and multiplanar) , 2009, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[11]  P. Bauer,et al.  Second‐trimester measurements of placental volume by three‐dimensional ultrasound to predict small‐for‐gestational‐age infants , 1998, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[12]  R. Ruano,et al.  Placental Volumes Measured by 3‐Dimensional Ultrasonography in Normal Pregnancies From 12 to 40 Weeks' Gestation , 2008, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.

[13]  Tom Farrell,et al.  The reliability and validity of three dimensional ultrasound volumetric measurements using an in vitro balloon and in vivo uterine model , 2001, BJOG : an international journal of obstetrics and gynaecology.

[14]  F. Stonek,et al.  Comparison between three‐dimensional placental volume at 12 weeks and uterine artery impedance/notching at 22 weeks in screening for pregnancy‐induced hypertension, pre‐eclampsia and fetal growth restriction in a low‐risk population , 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[15]  E. Hafner,et al.  Placental growth from the first to the second trimester of pregnancy in SGA-foetuses and pre-eclamptic pregnancies compared to normal foetuses. , 2003, Placenta.

[16]  K. Nicolaides,et al.  Placental volume in twin and triplet pregnancies measured by three‐dimensional ultrasound at 11 + 0 to 13 + 6 weeks of gestation , 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[17]  N. Raine-Fenning,et al.  The interobserver reliability and validity of volume calculation from three‐dimensional ultrasound datasets in the in vitro setting , 2003, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[18]  E. Hafner,et al.  Uterine artery Doppler and placental volume in the first trimester in the prediction of pregnancy complications , 2001, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[19]  Hye-Sung Won,et al.  P28.02: Three‐dimensional sonographic measurements of placental volume at early pregnancy , 2007 .

[20]  M. Leeuwen,et al.  Three‐dimensional sonographic volumetry of the placenta and the fetus between weeks 15 and 17 of gestation , 2001, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[21]  K. McGraw,et al.  Forming inferences about some intraclass correlation coefficients. , 1996 .

[22]  D. D. de Jong,et al.  Oedema formation with the vasodilators nifedipine and diazoxide: direct local effect or sodium retention? , 1996, Journal of hypertension.

[23]  K. Nicolaides,et al.  Gestational sac volume measured by three‐dimensional ultrasound at 11 to 13 + 6 weeks of gestation: relation to chromosomal defects , 2005, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[24]  R Tepper,et al.  Three-dimensional first trimester fetal volumetry: comparison with crown rump length. , 2004, Early human development.

[25]  T. Chaiworapongsa,et al.  Three‐dimensional ultrasound fetal lung volume measurement: a systematic study comparing the multiplanar method with the rotational (VOCAL) technique , 2003, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[26]  Luciano Marcondes Machado Nardozza,et al.  XI VOCAL (eXtended Imaging VOCAL): a new modality for three-dimensional sonographic volume measurement , 2006, Archives of Gynecology and Obstetrics.

[27]  A. Feinstein,et al.  Clinical biostatistics: LIV. The biostatistics of concordance , 1981 .

[28]  T. Nelson,et al.  Distance and volume measurement using three‐dimensional ultrasonography. , 1995, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.

[29]  Domenico Arduini,et al.  Effects of maternal cigarette smoking on placental volume and vascularization measured by 3-dimensional power Doppler ultrasonography at 11+0 to 13+6 weeks of gestation. , 2009, American journal of obstetrics and gynecology.

[30]  T. Nelson,et al.  Three‐dimensional ultrasound: accuracy of distance and volume measurements , 1996, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

[31]  A. Moron,et al.  Comparison of placental volume in early pregnancy using multiplanar and VOCAL methods. , 2008, Placenta.