MRI在HIFU治疗后随访中的作用

The effect of MRI in the follow-up after HIFU

目的:探讨MRI技术在高强度聚焦超声(highintensityfocusedultrasound,HIFU)治疗后随访中的作用。方法:采用HIFU治疗猴子宫瘤样增生模型,利用磁共振(magneticresonanceimaging,MRI)术后定期随访,观察靶区声像图的变化情况。结果:HIFU后,MRI示靶区无血流信号,动态观察发现靶区体积逐渐缩小。这与病理学及B超观察结果一致。结论:MRI是临床上HIFU治疗后随访监测病灶变化有效可行的手段,能准确反应其组织学变化。

Objective:To study the effects of MRI in the follow-up after HIFU.Methods:The tumor-like proliferation of monkey uterus was treated with high intensity focused ultrasound(HIFU)then followed up with magnetic resonance imaging (MRI) to observe the change of signals of treated region.Results:The blood flow signals were not observed in treated region with MRI after HIFU.The volume of treated region decreased gradually,which was consistent with the results of pathology and B-ultrasound.Conclusion:MRI is efficient in follow-up for the change of signals of treated region after HIFU and can reflect the histological change of treated region precisely.