Ovarina mass assessment with transvaginal ultrasound, color doppler and the histopathological findings

ABSTRACT

To compare transvaginal sonography and color Doppler imaging accuracy in diagnosing benign ovarian masses from malignant masses by the histopathological finding. The study was performed as a prospective study at Ain Shams University, departments of Obstetrics and Gynecology and Radiodiagnosis over the period from November-2002 to September-2004. A total of 80 cases with ovarian masses on which transvaginal sonography was performed before surgical exploration were included in the study. An ovarian mass was first studied using transvaginal sonography, then color Doppler evaluation of the solid portions of the tumor were done. A mass was graded malignant if flow was shown within the solid areas or papillary projection and benign if there was no flow and the actual histological type was detected after surgical exploration. The overall agreement between the test result and the actual outcome was calculated by K-statistics. Color Doppler evaluation was more accurate in the diagnosis of ovarian malignancies in comparison with transvaginal sonography [K = 0.836 and 0.62, respectively] because of significant higher specificity [0.95 versus 0.84; P <.05] and higher Positive predicative value [PPV] [0.81 for color Doppler versus 0.56 for transvaginal sonography] with same negative predictive value [NPV] [0.984 for color Doppler versus 0.982 for transvaginal sonography]