TY - JOUR AR - RDI-2018-2-101 TI - Differentiation between stage I ovarian cancer and borderline epithelial ovarian tumor by apparent diffusion coefficient value AU - Hitoshi , Masamoto AU - Keiko, Mekaru AU - Tadaharu, Nakasone AU - Tadatsugu , Kinjo AU - Tomoko , Nakamoto AU - Wataru , Kudaka AU - Yoichi , Aoki AU - Yoshino , Kinjyo AU - Yuko, Iraha AU - Yusuke, Taira JO - Radiology and Medical Diagnostic Imaging PY - 2018 DA - Thu 13, Dec 2018 SN - 2613-7836 DO - http://dx.doi.org/10.31487/j.RDI.2018.02.001 UR - https://www.sciencerepository.org/dc-value-in-diagnosis-of-ovarian-tumor_RDI-2-101 KW - Apparent diffusion coefficient value, borderline epithelial ovarian tumor, differential diagnosis, magnetic resonance imaging,malignant epithelial ovarian tumor AB - To clarify usefulness of apparent diffusion coefficient (ADC) value in the differential diagnosis of stage I malignant epithelial ovarian tumor (MOT) and borderline epithelial ovarian tumor (BOT), the ADC value of the solid portion or thickened wall of ovarian tumors was evaluated by a 1.5-T magnetic resonance imaging system in 18 cases of BOT and MOT. The median of average ADC value was 1.668 × 10−3 mm2 /s for BOT and 1.021 × 10−3 mm2 /s for MOT (p = 0.0005), and the median of minimum ADC value was 1.394 × 10−3 mm2 /s for BOT and 0.812× 10−3 mm2 /s for MOT (p = 0.0006), both of which were significantly lower in MOT than that in BOT. So the ADC value is useful and especially the minimum ADC value is useful in that it can easily measure the ROI so that it contains solid portion or thickened wall.