Author/Editor		Takač, Iztok
Title		Analysis of blood flow in adnexal tumors by using color Doppler imaging and pulsed spectral analysis
Type		članek
Source		Ultrasound Med Biol
Vol. and No.		Letnik 24, št. 8
Publication year		1998
Volume		str. 1137-41
Language		eng
Abstract		Because of various contradictory reports in the literature and an increasingly urgent need for preoperative evaluation of adnexal masses before laparoscopic surgery, our aim was to disclose if examination by means of color Doppler ultrasaund is useful in distinguishing beinign from malignant adnexal tumors in our population. Prior to surgery, pulsed color Doppler velocimetry of the adnexal blood suply was performed in a prospective study in 80 patients with benign and 40 with malignant tumors. Vascularization was equally frequent in both groups of tumors. Blood vessels of benign tumors had a diffuse, intraseptal or intraproliferative location (p<0.01). The mean value of RI +- SD was 0.56 +- 0.14 in benign and 0.33 +- 0.13 in malignant tumors. The differences in RI between benign and malignant tumors are statistically significant (p=0.01). In detecting malignant adnexal tumors, the sensitivity of RI<=0.04 is 82%, its specificy 97%, positive predictive value 94%, negative predictive value 92% and its accuracy 92% and its accuracy 92%. The analysis of vascularization presence seems to have any value in predicting the nature of adnexal tumors, and blood vessels arrangement, as well as measured RI<=0.40, allows us to predict the presence of malignancy with limited reliability.
Descriptors		OVARIAN NEOPLASMS ULTRASONOGRAPHY, DOPPLER, COLOR BLOOD FLOW VELOCITY ROC CURVE SPECTRUM ANALYSIS