高强度聚焦超声治疗子宫肌瘤的疗效观察

目的探讨高强度聚焦超声（HIFU）治疗子宫肌瘤的有效性。方法选择33例妇科确诊为子宫肌瘤的患者进行HIFU治疗。HIFU治疗3个月后对非手术患者行彩色多普勒超声随诊，观察子宫肌瘤内部回声、血供及瘤体体积改变；对手术患者行MRI增强扫描，观察HIFU治疗24h后肌瘤内有无出现坏死及其病理改变。结果33例中8例HIFU治疗24h后行增强MRI扫描及手术切除术，子宫肌瘤标本中均显示靶区坏死，坏死范围与治疗范围相近。光镜下显示HIFU治疗后肌瘤内细胞变性坏死、核浓染、固缩，并见肌瘤内微血管破坏。25例非手术患者治疗后3～16个月随诊观察，23例临床症状减轻或消失，超声显示4例治疗显效，子宫肌瘤消失；19例治疗有效。患者子宫肌瘤体积缩小（约20．1％～94．3％）；2例（2／25）治疗无效。13例（13／33）HIFU治疗后出现一过性神经刺激等症状，2例出现皮肤I度烫伤，未经任何治疗次日自行消退，未出现其他不良反应。结论HIFU治疗子宫肌瘤有效，安全性好，但远期疗效尚需长期随访观察。

The treatment effects of high intensity focused ultrasound on uterine leiomyoma

Objective To evaluate the therapeutic effects of HIFU on uterine leiomyoma. Methods Thirty-three patients with uterine leiomyoma were treated with HIFU in the study. The inner echoes,blood supplies and volumes of myomas in 25 non-operative patients were observed by the color Doppler flow imaging (CDFI) three months after treatment. Eight patients who received operation after HIFU treatment were observed 24 hours later via contrast-enhanced MRI. Histopathologic changes were compared before and after the HIFU...