MRI Diagnosis of Leiomyoma of Uterus

Objective:To evaluate the MRI features of uterine leiomyomas and the value of MRI in diagnosing uterine leiomyomas.Methods:30 patients with uterine leiomyomas were examined with SE sequence,T 1 and T 2 weighted imaging were performed on transverse plane and T 2 weighted imaging was performed on sagittal and coronal planes.The MRI features of 78 lesions in 30 patients with uterine leiomyomas were analysed retrospectively.All cases were confirmed surgically and pathologically.Results:78 lesions were detected by MRI in 30 patients with total 86 lesions,the detective rate was 90.7%,of them 16 were sub-serosa,60 were myometrium and 2 were endometrium.The accuraterate of localization by MR was 89,7%.The signal intensity of lesions was isointensity in 52 and hypointensity in 18 on T 1WI,hypointensity in 66and isointensity in 4 on T 2WI.The signal intensity was heterogeneous on T 2WI in 8 lesions which represented cystic degeneration or red degeneration.The boundaries of all lesions were definite.Conclusion:MRI is the best methods for the diagnosis of uterine leiomyomas.