Hitoshi  Masamoto,Keiko Mekaru,Tadaharu Nakasone,Tadatsugu  Kinjo,Tomoko  Nakamoto,Wataru  Kudaka,Yoichi  Aoki,Yoshino  Kinjyo,Yuko Iraha,Yusuke Taira,
Differentiation between stage I ovarian cancer and borderline epithelial ovarian tumor by apparent diffusion coefficient value
Radiology and Medical Diagnostic Imaging
2018
2613-7836
http://dx.doi.org/10.31487/j.RDI.2018.02.001
https://www.sciencerepository.org/dc-value-in-diagnosis-of-ovarian-tumor_RDI-2-101 
Abstract: 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.Keywords: Apparent diffusion coefficient value, borderline epithelial ovarian tumor, differential diagnosis, magnetic resonance imaging,malignant epithelial ovarian tumor