Abstract: ［Abstract］Objective To investigate the relationship between CT, MRI and three-dimensional power Doppler ultrasound in patients with polycystic ovary syndrome polycystic ovary syndrome(PCOS) and its pathological type and endocrine function.
Methods A total of 128 PCOS patients were enrolled as the PCOS group. Fifty healthy subjects were selected as the control group. Three-dimensional power Doppler ultrasonography was used to observe the characterization of all subjects. The area total area(TA), ovarian volume(2D-OV), interstitial area(SA), ovarian interstitial pulsation index(PI) and resistance index（RI) were compared between two groups; the luteinizing hormone（LH）, follicle stimulating hormone（FSH）, LH/FSH, testosterone（T）, estradiol（E2） and Homeostasis model-insulin resistance（HOMA-IR） were detected and compared between two groups. The relevance of ultrasound parameters and pathological classification of patients were analyzed. The PCOS patients were further divided into CT group and MRI group according to the random number table method, with 64 patients in each group. The CT and MRI were performed in CT group and MRI group, respectively. The differences between the two groups were compared.
Results TA, SA and 2D-OV in PCOS group were significantly higher than those in control group, PI and RI were significantly lower than those in control group(P＜0.05). The levels of LH, LH/FSH, T, E2 and HOMA-IR in PCOS group were significantly higher than those in the control group(P＜0.05). 2D-OV was positively correlated with LH/FSH, HOMA-IR, TA, SA was positively correlated with T(P＜0.05). Logistic regression analysis showed that TA,2D-OV,PI,RI were independent risk factors affecting the pathological classification of PCOS. The performance characteristics of CT and MRI detection were significant difference.
Conclusion There are significant differences in the ultrasound characteristics and endocrine indexes between PCOS patients and control group, and there is a certain correlation between them. The ovarian ultrasound characteristics can reflect the endocrine function of patients to some extent, and it is of great significance for judging the pathological classification of patients.

Key words: polycystic ovary syndrome, ultrasonography, tomography, magnetic resonance imaging