子宫肌瘤的MRI诊断

MRI diagnosis of uterine leiomyoma

目的：探讨常规MRI对子宫肌瘤的诊断价值及表现特征。方法：对14例疑子宫肌瘤的患者行B超和盆腔MRT1 WI，T2WI多方位扫描，其中8例同时行动态增强检查，并与病理结果进行对照。结果：B超确诊11例，准确率为78％；MRI确诊13倒，准确率为93％。以手术病例为准，B超病灶检出率为61％（19／31），MRI病灶检出率为87％（27／31），统计学比较差异较大。肌瘤在T1WI上表现为等或低信号，T2WI上表现为低或混杂信号，动态增强后呈不均匀性强化。结论：MRI平扫及增强扫描反映子宫肌瘤的大小、位置及宫腔的关系上具有很高的诊断价值。

Objective： To investigate the conventional MRI for the diagnosis of uterine leiomyoma and performance characteristics. Method： 14 cases of suspected patients with uterine fibroids and pelvic B--line MRT 1 WI, T 2 WI multi--directional scanning, of which eight cases at the same time dynamic contrast--enhanced examination, and results were compared with pathology. Results： B diagnosed 11 cases of ultra--accurate rates of 78% ; MRI confirmed 13 cases, accuracy was 93%. Surgical cases to prevail, B--lesion detection rate of 61% （19/31）, MRI lesion detection rate was 87% （27/31）, compared statistically different. Leiomyoma in the T1WI such as performance or low--signal, T2WI show lower or mixed--signal,Dynamic contrast--enhanced showed heterogeneous enhancement after. Conclusion： MRI and CT scan reflects the size of uterine fibroids, the location and the relationship between the uterine cavity with a high diagnostic value.