摘要:目的:探讨GE 3.0T MRI多参数成像评估高强度聚焦超声(High intensity focused ultrasound,HIFU)治疗子宫肌瘤疗效及预后判断的价值。方法:对子宫肌瘤HIFU术前、术后一天、3个月、6个月、一年行MRI常规扫描、动态增强、弥散加权成像扫描;观察并记录肌瘤相关信息、A D C值、增强扫描、T1W I及T2W I绝对信号强度改变。结果:前壁肌瘤及T2WI低信号肌瘤HIFU治疗疗效最好;子宫肌瘤消融体积大于75%,患者恢复情况最好;子宫肌瘤术后T1WI绝对信号强度明显升高,T2WI轻度下降,增强扫描绝对信号强度明显下降;术后一天ADC值明显下降。结论:子宫肌瘤的位置、信号强度、体积等与HIFU治疗疗效相关,MRI功能成像能有效评价子宫肌瘤HIFU治疗的疗效,评估预后转归,可用于长期随访观察。
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