超声导向多电极射频消融治疗肝癌的临床应用

目的 探讨多电极射频消融治疗肝癌的临床应用价值。方法 超声引导下经皮穿刺组织学证实的34例肝癌患者的54个病灶,在超声引导下利用多电极射频消融技术进行治疗;直径3cm以下的病灶采用“一针穿刺、一点消融”的空间布针方案、直径3cm以上的病灶采用“多针穿刺、多点消融”的空间布针方案,最大限度损毁病灶。结果 射频治疗后,所有病灶超声均显示为不均匀的回声增强。其中直径≤3cm的38个病灶,追踪观察3个月,超声显示病灶体积缩小31个,无明显变化7个,29个病灶可见高回声呈“鸡爪”样分布,与射频电极针的空间布针形状一致。直径〉3cm的16个病灶中,11个病灶体积缩小,3个无缩小,2个病灶周围出现新的病灶。所有患者的临床表现改善。结论 射频消融治疗肝癌的效果确切、适应范围广、创伤小、痛苦少,患者的临床表现得到明显改善,生活质量得以提高。

The applications of radio frequency ablation on liver cancers guided by ultrosound

Objective To investigate the clinical applications for liver cancers treated with the radio frequency ablation under the guidance of ultrasonography.Methods All the 54 lesions in 34 patients were approved by the histopathology with percutaneous biopsy procedures.In order to destroy the lesions as completly as possible,the lesions equal or less 3 cm in diameter were applied with the method of one insert and ablation,and the lesions more than 3 cm in diameter were applied with the method of more inserts and ablations depending on the size.Results The inhomogeneous hyperechogenicity was demonstrated on ultrasonography in all the 54 lesions.The size was reduced in 31 of 38 lesions which less than 3 cm in diameter.No change in size was observed in the remains 7 lesions.The "paw" echo pattern was demonstrated in the 29 of 38 lesions.This echo pattern was very similar to the space distribution of the radio-frequency-needle-electrodes.The size was reduced in 11 of 16 lesions which more than 3 cm in diameter.No change in size was observed in 3 lesions.And the new lesions were found near the ablated lesions in 2 lesions.The clinical manifestations were obviously improved in all the patients after the treatment.Conclusion Radio frequency ablation is one of the micro-invasive methods to treat the liver cancers.It has certain efficiency to destroy the cancer lesion.It has a wide indication.It has the less pains for the patient.It is helpful to improve the clinical manifestations and the life qualities of the patients.Therefore it is a good way to manage the liver cancer.