الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Summary Magnetic resonance imaging (MRI) has been proven to provide more anatomical information of ovarian masses and adjacent structures through its high spatial resolution and soft-tissue contrast. Our study included 30 patients with different ovarian lesions, 19 benign cases and 11 malignant cases proved by histopathology, and the mean age was 40.37 years. Pelviabdominal pain was the most common complaint among patients under study. All of the patients subjected to MRI pelvic assessment performed on 1.5T MR imaging machine with pelvic phased-array coil. Newer tools such as functional imaging with DWI are becoming increasingly important in the evaluation of ovarian masses. By performing DWI using different b-values, quantitative analysis, namely, the calculation of apparent diffusion coefficient (ADC) is possible and can be displayed as a parametric map (ADC map). Restricted water diffusion demonstrates high signal intensity on DWI and lower ADC values on ADC map. According to us, the addition of DWI to the conventional MRI increased the sensitivity from 72.73% to 100%, but the specificity was decreased from 73.68 % to 57.89 %, such low specificity value was attributed to the presence of eight benign masses that have mimicked malignancy on DWI; starting from their misleading signal intensities o