Comparison of the Accuracy of CT Volume Calculated by Circumscription to Prolate Ellipsoid Volume (Bidimensional Measurement Multiplied by Coronal Long Axis)

Does expanded polytetrafluoroethylene mesh really shrink after laparoscopic ventral hernia repair?

“…In the manual circumscription, radiologists used the automatic 3D tool to measure the tumor and then manually adjusted the measurements by tracing the tumor on CT. The study found that manual circumscription was more accurate than PEVC [14]. This method of tumor measurement as described by manual circumscription is very similar to the method used to measure the implanted mesh in our study.…”

Comparison of response evaluation criteria in solid tumors with volumetric measurements for estimation of tumor burden in pancreatic adenocarcinoma and hepatocellular carcinoma

“…who demonstrated that PDAs are not spherical in shape and their respective spherical volumes calculated from RECIST overestimate contoured volumes. 5 Other groups have demonstrated the same findings in patients with liver metastases 11 and in studies with phantom ellipsoids 41013 . Also, volumetric analysis has been shown to be more accurate in predicting actual tumor size compared with RECIST in these phantom ellipsoid studies.…”

Tumor volume to fetal weight ratio as an early prognostic classification for fetal sacrococcygeal teratoma

“…All 3-dimensional ultrasound and ultrafast magnetic resonance imaging (MRI) studies were performed and/or interpreted by experienced Fetal Center radiologists blinded to the fetuses' clinical outcome. Fetal weight was estimated by ultrasound using the Hadlock formula; and tumor volume was measured by ultrasound or MRI using the greatest dimensions of length, width, and depth to calculate a prolate ellipsoid [8][9][10]. With these 2 parameters, the TFR was obtained by dividing the calculated total tumor volume by the estimated fetal weight.…”