Estimation of uterine volume with ultrasound in women with endometrial carcinoma.
In calculating uterine volume with ultrasound, it is necessary to calculate the volume of a parallelogram containing the uterus or to assume a specific shape for the uterus. The objective of this study was to determine how much (what percentage) of the parallelogram was actually occupied by the uterus without assuming any specific shape for the uterus. Overall, the volume of the uterus occupies 63% of the volume of the parallelogram. The uterus occupies a greater percentage of smaller parallelogram volumes than larger ones. The data also suggest that the concomitant presence of myomata may be responsible for the positive intercept of the regression line and therefore for the finding that small uteri occupy more than 63% of the parallelogram volume.
Shipley
C F
CF
Department of Obstetrics and Gynecology, University of South Carolina School of Medicine, Columbia 29203.
Smith
S T
ST
Launer
R L
RL
Nelson
G H
GH
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016889:Endometrial Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D009929:Organ Size; D012044:Regression Analysis; D014463:Ultrasonography; D014594:Uterine Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D014599:Uterus / Q000000981:diagnostic imaging* / Q000473:pathology