Author/Editor		Takač, Iztok
Title		Analysis of blood flow in adnexal tumors by means of color Doppler ultrasaound
Type		članek
Source		Gynaecol Perinatol
Vol. and No.		Letnik 7, št. 3
Publication year		1998
Volume		str. 99-103
Language		eng
Abstract		Our aim was to disclose whether examination by means of color Doppler ultrasound is useful in distinguishing benign and pseudotumors from malignant adnexal tumors.Prior to operation, pulsed color Doppler velocimetry of the ovarian blood supply was performed in 40 patients with benign, in 40 with pseudo- and 40 with malignant ovarian tumors. Vascularization was equally frequent in all three groups of tumors. Blood vessels of benign and pseudotumors had more often a tumor-adjacent or peripheral intratumoral location while malignant tumor vessels exhibited more often a diffuse, intraseptal or intraproliferative locatin. The mean value of RI+-SD WAS 0.56 +-0.15 in begin, 0.55+-0.12 in pseudotumors and 0.33+-0.13 in malignant tumors.The differences in RI between benign and malignant tumors as well as between pseudotumors and malignant tumors are statistically significant (p <0.01). In detecting malignant ovarian tumors, the sensivity of RI <- 0.40 is 82 %, its specificity 97 %, positive predictive value 94 %, negative predictive value 92 % and accuracy 92 %. Analysis of the vascularization presence and blood vessels arrangement in ovarian tumors as well as measured RI <- 0.40 allows us to predict the presence of maligancy with limited reliability.
Descriptors		GENITAL NEOPLASMS, FEMALE ULTRASONOGRAPHY, DOPPLER, COLOR OVARIAN NEOPLASMS