Diagnostic value of magnetic resonance imaging conventional sequences and diffusion weighted imaging in polycystic ovary syndrome / 中华内分泌外科杂志

ABSTRACT

Objective To investigate the diagnostic value of magnetic resonance imaging(MRI) conventional sequences and diffusion weighted imaging (DWI) in polycystic ovary syndrome(PCOS).Methods 75 patients with clinical-confirmed PCOS and 46 healthy women in Yuyao Traditional Chinese Medicine Hospital from Oct.2016 to Apr.2018 were selected.All the subjects received MRI conventional sequences and DWI examination.The size of ovary and number of follicles were observed,and apparent diffusion coefficient (ADC) values in ovarian stroma were measured.The ovarian morphologic changes and ADC values between the two groups were compared.Results The volume of ovary and number of follicles in the control group were (6.6±1.5)cm3 and 6.9±1.8,the difference was statistically significant compared with that in PCOS group [(11.8±2.8)cm3,13.6±3.6)](P＜0.05).ADC value in ovarian stroma in PCOS group was reduced,and the difference was also statistically significant compared with that in the control group(P＜0.05).The sensitivity and specificity of diagnosing PCOS with ADC threshold of 1.39×10-3 mm2/s were 82.2％ and 68.9％,respectively.Conclusion MRI conventional sequences and DWI are helpful in diagnosis of PCOS,which has important significance for the clinical treatment and prognosis evaluation.