Li Ping, Zeng Zhi-cheng, Yu Qing-ping, Luo Wan-jun
Department of Cardiothoracic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China.
Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2007 Jun;32(3):515-9.
To measure the inferior epigastric artery(IEA),coronary artery and arterial bridge to supply the anatomic and hemodynamic data of IEA in coronary artery bypass grafting for clinicians.
Anatomic method was adopted to measure the length of IEA, arterial bridge, the outer diameter of IEA and coronary arteries. Colour doppler ultrasound instrument was adopted to measure the caliber and the blood flow rate of IEA and coronary artery.
In the anatomic method, the length of IEA was (13.00+/-2.58)cm and the caliber of original IEA was (2.95+/-0.21)mm, the caliber of IEA intersecting with abdomen rectus was (2.51+/-0.32)mm, and (1.60+/-0.26)mm at 1.0 cm below the umbilicus. In color doppler ultrasound method, the caliber of original IEA was (2.98+/-0.37)mm, and at 5 cm from the original spot was (2.60+/-0.27)mm. The blood flow rate was (57.00+/-6.78)cm/s. The main stem caliber of the left coronary artery was (4.90+/-0.76)mm, and that of the right coronary artery was (3.58+/-0.63)mm; the blood flow rate was (48.50+/-7.72)cm/s. The length of the arterial bridge was (10.95+/-1.35) approximately (15.30+/-2.82)cm.
IEA can bridge the aorta and the coronary artery branches including the left anterior descending branch, the left circumflex branch and the right main coronary artery in free grafting. Its caliber and blood flow rate can match with those of the coronary artery. Before the operation of applying color doppler ultrasound instrument, the safety of IEA in the coronary artery bypass grafting can be evaluated to provide a new safe method in clinical follow-up.
测量腹壁下动脉（IEA）、冠状动脉及动脉桥，为临床医生提供冠状动脉搭桥术中IEA的解剖学及血流动力学数据。
采用解剖学方法测量IEA、动脉桥的长度，IEA及冠状动脉的外径。采用彩色多普勒超声仪测量IEA及冠状动脉的管径和血流速度。
解剖学方法测量，IEA长度为（13.00±2.58）cm，起始处IEA管径为（2.95±0.21）mm，与腹直肌交点处管径为（2.51±0.32）mm，脐下1.0 cm处为（1.60±0.26）mm。彩色多普勒超声法测量，起始处IEA管径为（2.98±0.37）mm，距起始点5 cm处为（2.60±0.27）mm。血流速度为（57.00±6.78）cm/s。左冠状动脉主干管径为（4.90±0.76）mm，右冠状动脉主干管径为（3.58±0.63）mm；血流速度为（48.50±7.72）cm/s。动脉桥长度为（10.95±1.35）至（15.30±2.82）cm。
IEA在游离移植时可桥接主动脉与冠状动脉分支，包括左前降支、左旋支及右冠状动脉主干。其管径和血流速度可与冠状动脉相匹配。应用彩色多普勒超声仪术前可评估IEA在冠状动脉搭桥术中的安全性，为临床随访提供一种新的安全方法。
