超声聚焦 (HIFU)由换能器发射的超声波组成 ,该高强度聚焦超声波主要通过热效应及其他机理引起组织损伤。用HIFU处理过的肿瘤组织表现为热细胞毒坏死和纤维化 ,导致肿瘤生长抑制。因此 ,HIFU是以高新技术为基础 ,微创治疗肿瘤的手段之一 ,且无放射毒副作用。目前已有多种肿瘤用HIFU治疗的研究报道 ,如 :前列腺癌、肝癌、肾肿瘤、膀胱癌、乳腺癌和脑肿瘤等 ,其中一些肿瘤在临床和实验研究中获得了有效控制肿瘤生长的疗效 ,尤其是前列腺癌。虽然HIFU作为一种治疗肿瘤的微创外科技术由于其卫生经济、病人易接受、死亡率低而引起了人们的极大关注 ,但其用于治疗人类肿瘤的可行性及其机理有待进一步研究证实 Ultrasound Focusing (HIFU) consists of ultrasound emitted by a transducer that causes tissue damage primarily through thermal effects and other mechanisms. Tumor tissue treated with HIFU showed thermocytotoxic necrosis and fibrosis, resulting in tumor growth inhibition. Therefore, HIFU is one of the means for minimally invasive treatment of cancer based on high technology and no radiation side effects. There are many reports on the treatment of tumors with HIFU, such as prostate cancer, liver cancer, kidney tumor, bladder cancer, breast cancer, and brain tumors. Some of these tumors have been effective in controlling tumor growth in clinical and experimental studies. Especially prostate cancer. Although HIFU as a minimally invasive surgical technique for the treatment of tumors has attracted great attention due to its economic health, patient acceptance, and low mortality rate, the feasibility and mechanism of HIFU for the treatment of human tumors remains to be confirmed by further studies.