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- W3030359611 abstract "目的利用脉动流模拟实验装置测试液氮保存同种带支架瓣膜流体力学性能,同时与国产perfect牛心包人工瓣膜对比研究.方法采集同种瓣膜,缝制成21#、23#、25#同种带支架主动脉和同种带支架肺动脉人工瓣膜,经液氮保存,使用国产脉动流实验装置测试瓣膜流体力学性能,采用ISO/FDA评估标准,分别测量各流量下的跨瓣压差、有效瓣口面积(EOA)和回流比.并与相应型号国产perfect牛心包人工瓣膜对比研究.结果 21#、23#、25#同种带支架主动脉和肺动脉瓣膜的跨瓣压差和回流百分比差异无显著性,但较perfect瓣大.同种带支架主、肺动脉瓣膜的EOA差异无显著性,但较perfect牛心包生物瓣膜的略小些.同种带支架瓣膜实际开口面积(AOA)小于perfect牛心包瓣,但有效瓣口面积/实际开口面积比值无差别.结论同种带支架主动脉和肺动脉人工瓣膜流体力学性能满意,同种带支架主动脉瓣膜与同种带支架肺动脉瓣膜流体力学性能无差别." @default.
- W3030359611 created "2020-06-05" @default.
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- W3030359611 date "2003-07-25" @default.
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- W3030359611 title "In vitro hemodynamic evaluation of the cryopreserved stented homograft bioprosthetic heart valve" @default.
- W3030359611 doi "https://doi.org/10.3760/cma.j.issn.1001-4497.2003.04.015" @default.
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