The field of cardiovascular surgery has been relatively stable from 1964 to 1990 where primary advances were in improvements of existing procedures from a morbidity and mortality reduction standpoint. New procedures w...
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The field of cardiovascular surgery has been relatively stable from 1964 to 1990 where primary advances were in improvements of existing procedures from a morbidity and mortality reduction standpoint. New procedures were introduced but not wholly embraced during this time. The mid 1990’s brought an initiation of adoption of new procedures such as “off pump” coronary surgery, robotic, and endoscopic advances. The breadth and depth of the new technologies continue to advance at an ever rapid pace with ever accelerating adoption rates worldwide which in turn then generates even faster technological advancement. This article will strive to give an overview of the technologies and future currently facing the leading cardiovascular surgeons.
目的 探讨3.0 T MR对比增强全心冠状血管成像（CE CMRA）对冠状静脉解剖的研究价值.方法 43例受试者行3.0 T CE CMRA,采用自由呼吸导航门控、心电触发和非选择性反转恢复（IR）准备脉冲的3D扰相位梯度回波（FLASH）序列.采用32通道体部...
详细信息
目的 探讨3.0 T MR对比增强全心冠状血管成像（CE CMRA）对冠状静脉解剖的研究价值.方法 43例受试者行3.0 T CE CMRA,采用自由呼吸导航门控、心电触发和非选择性反转恢复（IR）准备脉冲的3D扰相位梯度回波（FLASH）序列.采用32通道体部相控阵线圈进行数据获取.冠状静脉的图像质量由4分法进行评价.连续变量表达为（-x）±s,用配对t检验评价CS窦口前后径及上下径的差异.结果 40例受试者成功完成3.0 T CE CMRA检查,其中38例（95.0%）受试者的图像能够进行评价.左心室后静脉（PVLV）及左边缘静脉（LMV）距冠状窦（CS）窦口的距离分别为（3.34±0.90）及（6.12±1.02）***、后室间静脉（PIV）、PVLV、LMV及前室间静脉（AIV）的平均图像质量得分分别为（4.0±0.0）、（3.4±0.5）、（3.4±0.5）、（3.0±0.8）及（3.3±0.5）分.CS窦口的上下径[（1.10±0.26）cm]大于前后径[（0.83±0.19）cm],差异有统计学意义（t=-4.31,P〈0.05）.结论 3.0 T MR CE CMRA能够清晰地评价冠状静脉解剖.
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