Hua Wei, Ding Li-gang, Zhang Shu, Chen Ke-ping, Wang Jin, Wang Fang-zheng
Cardiac Arrhythmia Center, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100037, China.
Zhonghua Xin Xue Guan Bing Za Zhi. 2010 Jul;38(7):610-3.
To evaluate the value of 64-slice computed tomography (MDCT) in previsualization the cardiac veins anatomy before the implantation of cardiac resynchronization therapy (CRT).
The 64-slice CT scans of 21 patients [10 men, age (61.6 ± 9.7) years] were obtained and analyzed before the implantation of CRT. Retrograde coronary venography was performed during intraoperational fluoroscopy. The coronary sinus (CS) and the main tributaries were measured.
Similar images to those obtained during the CRT implantation procedure were obtained by MDCT in 71% of the patients. The coronary sinus was clearly visible in all cases, the measured ostium was (12.1 ± 4.2) mm, and the angle between the CS and the vertical plane was (99 ± 12) degrees. In 90% of patients, at least one vein was clearly visible in the target area. Among the target veins, the posterolateral vein was visible in most cases (86%) and the lateral vein was visible in 48% of the patients.
MDCT is an effective and noninvasive method for previsualization of the cardiac venous system, which may facilitate optimal left ventricular lead positioning for CRT implantation.
评估64层计算机断层扫描（MDCT）在心脏再同步化治疗（CRT）植入术前对心脏静脉解剖结构进行可视化的价值。
在21例患者[10例男性，年龄（61.6±9.7）岁]植入CRT前进行64层CT扫描并分析。术中透视时进行逆行冠状静脉造影。测量冠状窦（CS）及其主要分支。
71%的患者通过MDCT获得了与CRT植入过程中相似的图像。所有病例中冠状窦均清晰可见，测量的开口为（12.1±4.2）mm，CS与垂直平面的夹角为（99±12）度。90%的患者在目标区域至少可见一条静脉。在目标静脉中，大多数病例（86%）可见后外侧静脉，48%的患者可见外侧静脉。
MDCT是一种有效且无创的心脏静脉系统可视化方法，可有助于CRT植入时左心室导线的最佳定位。
