肝癌放射治疗前后的彩色多普勒显像观察  

Color Doppler Flow Imaging of Primary Liver Cancer Treated With Radiotherapy

作　　者：黄建国[1] 王章容[1] 

机构地区：[1]湖北省肿瘤医院超声波室

出　　处：《中华超声影像学杂志》1998年第4期210-212,共3页Chinese Journal of Ultrasonography

摘　　要：报告３２例肝癌放疗后彩色多普勒超声血流动力学的变化。治疗前３２例病灶中３１例（９７％）肿瘤内可测及血流，但经放射治疗后有血流的３１例中２８例（８７％）肿瘤血流减少。放疗结束后其中２２例（７１％）肿瘤血流消失。一般肿瘤照射量在２０００ｃＧｙ时可出现肿瘤内血流减少，肿瘤照射量大于４０００ｃＧｙ时其内部和周边血流减少或消失。肿瘤缩小依赖于血供的减少。肿瘤越小，放疗后血流消失出现越早。血流减少或消失与肿瘤缩小及ＡＦＰ的下降相一致，是病变良好转归的表现。我们认为彩色多普勒超声对于观察肝癌放射治疗前后血流的变化及对肝癌设野定位放射治疗有重要的价值。WT5”BZ〗The hemodynamic changes in 32 patients of primary liver cancer treated by radiotherapy were evaluated by color Doppler flow imaging. In color Doppler maging blood flow was showed in 31 cases (97%) before radiotherapy and was reduced in 28 cases (87%) during radiotherapy and disappeared in 22 cases (71%) after radiotherapy. The blood supply of the tumor was usually reduced when the radiation dose was 2000 cGy and disappeared when the dose was over 4000 cGy. Smaller the tumor was, earlier the blood supply of the tumor disappeared after radiotherapy. The decrease of the size of tumor nodules depended on the reduction of the blood supply. Reduction or disappearance of the blood flow corresponded to the decrease of the size of the tumor and decline of AFP level. Therefore, the reduction of the blood flow can be considered as a sign of favourable prognosis. It is concluded that color Doppler sonography is useful to monitor the blood flow of liver cancer before and after radiotherapy and is valuable to locate the radiation fields.

关 键 词：彩色多普勒 超声描记术 肝癌 放射治疗 

分 类 号：R735.705[医药卫生—肿瘤]