HIFU治疗原发性肝癌的CT表现及价值

目的：探讨HIFU治疗原发性肝癌的CT表现及价值。方法：18例原发性肝癌患者HIFU治疗后行CT检查，对比治疗前后CT改变。5例治疗后行病灶切除，观察其病理组织学改变，并与CT表现对照。结果：治疗后12例（12／18，66．7％）病灶体积缩小。16例（16／18，88．9％）病灶密度降低，强化程度减弱，2例病灶内及周边有小片轻度增强。组织病理学检查发现HIFU治疗区内肿瘤组织出现凝固性坏死，病理结果与CT表现一致。结论：CT可以反映HIFU后瘤体的组织学及血供变化，对评价HIFU治疗原发性肝癌的效果及预后具有重要价值。

The CT Appearances and Its Clinical Value of HCC after HIFU Therapy

Objective To investigate the CT appearances and its clinical value of hepatocellular carcinoma(HCC)after high intensity focused ultrasound(HIFU)therapy. Methods 18 cases clinically proved HCC underwent CT scanning after HIFU therapy, the CT appearances were observed before and after HIFU treatment. Surgical resection was performed in 5 cases after HIFU treatment and their histopathological changes were studied. The CT appearances and their histopathological changes were compared. Results The lesions became smaller in 12 cases (12/18, 66.7%) after treatment. The lowered densities were showed in 16 cases (16/18, 88.9%). Pathological finding indicated coagulative necrosis in the target region of tumor, which was consistent with the CT findings. Conclusion CT manifestation can refect histologic components and blood supply of the tumor so that it is of great value in the evaluation of effective and prognosis in HCC after HIFU therapy.