低场MRI平扫在高强度聚焦超声治疗子宫肌瘤的早期疗效评价

目的探讨低场MRI在高强度聚焦超声治疗子宫肌瘤的早期疗效价值。方法 29例（35个肌瘤）子宫肌瘤行高强多聚焦超声（HIFU）治疗。分别于治疗前1～7天、治疗后1～3天行核磁共振（MRI）检查,分析治疗前后MRI信号变化。结果子宫肌瘤HIFU治疗术后1～3天,34个病灶主体不同程度T1WI信号增高,外周等低信号,T2WI病灶呈中央低信号内散在斑片状高信号,外周高信号环,与治疗前比较：外周高信号环较前明显增宽,病灶内高信号减少;病灶大小无明显变化。结论 MRI平扫是评价子宫肌瘤HIFU治疗早期疗效的方便、经济、有效方法。

Treatment of uterine fibroids with low field MRI in high-intensity focused ultrasound

Objective To investigate the high-intensity focused ultrasound(High intensity focused ultrasound,HIFU) treatment of uterine fibroids(myoma of the uterus) of early magnetic resonance imaging(Magnetic resonance imaging,MRI) scan performance.Methods 29 patients(35 fibroids) underwent HIFU treatment of uterine fibroids.Respectively before and after treatment from 1 to 7 days MRI,analysis of MRI signal changes before and after treatment.Results HIFU treatment of uterine fibroids after 1 to 3 days,34 lesions were subject to varying degrees T1WI signal increased,peripheral low-signal,T2WI lesions were scattered within the central low signal patchy high signal in the Outer Ring high signal compared with before treatment: Outer Ring high signal widened significantly over the previous,high signal lesions decreased,T1WI than T2WI more intuitive;lesion size did not change.Conclusion MRI scan of the HIFU treatment of uterine fibroids have higher efficacy in early clinical value,is a convenient,economical and effective method.