Comparison of ultrasonographic and MRI findings in patients with ovarian endometriosis

Background: Endometriosis is a common benign gynecologic disorder, defined by endometrial glands and stroma outside of the endometrial cavity. Hence; the present study was undertaken for comparing the ultrasonographic and MRI findings in patients with ovarian endometriosis. Material and methods: A total of 25 patients with clinical suspicion of ovarian endometriosis were enrolled. Complete demographic and clinical details of all the patients were recorded. All the patients were recalled in the morning and USG was done. USG findings were recorded separately. MRI was also done in all the patients Separate recording of MRI findings was done. Results: On USG examination, Thick walled cyst with lower level echoes, Hyperechoic wall foci, Dependent fluid level and Negative sliding sign for bilateral kissing ovaries was seen in 92 percent, 60 percent, 48 percent and 75 percent of the patients respectively. On MRI examination, T1W Hyperintensity with persistence on T1W fat suppressed sequence, T2 Hypointensity, T2 Shading sign, STIR signal suppression and DWI restriction diffuses with low ADC values was seen in 96 percent, 96 percent, 80 percent, 64 percent and 80 percent of the patients respectively. On comparison, it was seen that MRI was superior to USG in locating Endometriosis at more than two sites and Non-endometriosis diagnosis. Conclusion: From the above results, the authors concluded that for initial screening of the patients, USG is useful but for final pre-surgical check-up, MRI is necessary.