目的研究使用旋转成像技术进行术中实时重建和融合左心房三维图像（3-dimensional rotational angiogram of leftatrium，3DRALA）的可行性和安全性。方法入选46例拟接受导管消融的心房颤动（房颤）患者。全部患者消融术前完成CT扫描，...
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目的研究使用旋转成像技术进行术中实时重建和融合左心房三维图像（3-dimensional rotational angiogram of leftatrium，3DRALA）的可行性和安全性。方法入选46例拟接受导管消融的心房颤动（房颤）患者。全部患者消融术前完成CT扫描，术中进行左心房的旋转成像，完成左心房图像的实时三维重建，并融合到实时X线影像中指导房颤消融。结果3DRALA在44例患者上重建成功，并融合到实时x线影像中；与CT图像相比，肺静脉口直径和左心房容积显示良好的相关性（r≥0．87）。成像中使用的X线剂量，3DRALA明显低于CT图像[（2．7±0．9）mSv和（24．9±3．1）mSv，P〈0．001]。在实时融合的3DRALA图像的导航下，44例患者完成了肺静脉的电隔离。结论应用旋转成像技术实时重建和融合3DRALA，导航房颤的导管消融是安全可行的。
Therapeutic efficiency of advanced stage liver cancer is insufficiency,which has become the hot spot of *** observation found that prognosis of liver cancer with integrity amicula was *** is generally accepted that si...
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Therapeutic efficiency of advanced stage liver cancer is insufficiency,which has become the hot spot of *** observation found that prognosis of liver cancer with integrity amicula was *** is generally accepted that silicon dioxiode(SiO2) can induce pulmonary fibrosis,resulting in the formation of *** of SiO2 as embolism material induces hepatic fibrosis and forms the fibrosis amicula around the liver carcinoma,and then restrains the recurrence and metabasis of liver cancer,which has been turned into one of the aspect of liver carcinoma *** possible mechanisms of inducing hepatic fibrosis by SiO2 are peroxidative damage by free radical,releasing of active cytokines,or inducing cell apoptosis and the activation of HSC etc.
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