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低频脉冲超声联合微泡对在体微小血管作用的实验研究

来源期刊: 广州医药 | 85-87 发布时间:2021-11-30 收稿时间:2025/11/13 17:04:35 阅读量:10
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关键词:
超声治疗微泡肠系膜微血管渗出
DOI:
10.3969/j.issn.1000-8535.2016.02.029
收稿时间:
2015-11-27 
修订日期:
 
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引用总数:
0  
目的 探讨低频脉冲超声联合微泡对微血管的渗出作用。方法 20只新西兰大白兔分为4组:空白组、单纯微泡组、单纯超声组、超声微泡组,进行实验观察。用频率为1 MHz,声压2000 MPa的脉冲超声辐照兔肠系膜及肠壁血管,在荧光显微镜下观察辐照前后肠系膜及肠壁上微血管的损伤,并静脉注入伊文思蓝溶液,观察超声辐照后对伊文思蓝溶液的渗出。结果 空白组、单纯微泡组、单纯超声组在超声辐照后肠系膜及肠壁上微血管内血流通畅,注入伊文思蓝溶液后,微血管内呈蓝色染色,血管周围未见渗出;超声微泡组在超声辐照后微血管周围可见渗出,部分形成血肿。结论 低频脉冲超声联合微泡对微小血管管壁产生损伤作用,血管周围可见渗出,部分形成血肿。
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