Journal of Ultrasound in Medicine, Vol 10, Issue 6 295-297, Copyright © 1991 by American Institute of Ultrasound in Medicine
Evaluation of adnexal masses with transvaginal color ultrasound
A. Kurjak, I. Zalud and Z. Alfirevic
Ultrasonic Institute, University of Zagreb, Yugoslavia.
We evaluated 14,317 asymptomatic or minimally symptomatic women for ovarian
carcinoma with transvaginal color Doppler ultrasound. The resistance index
was calculated for at least five separate cardiac cycles in each case, and
the mean was calculated. We discovered 624 benign adnexal masses: in every
case except one the resistance index was greater than 0.40. There were 56
malignant adnexal masses, 16 of which were stage I ovarian cancers.
Neovascularization was found in six of the seven stage I primary neoplasms
and in all of the nine stage I secondary ovarian cancers. In all, the RI
was less than or equal to 0.40. There were 40 advanced ovarian cancers
revealed (stage III or IV); 39 showed abnormal color-flow pattern with the
resistance index less than 0.04.