Cao H-M, Jiang J-F, Deng B, Xu J-H, Xu W-J
Department of Cardiology, Tongji Hospital, Tongji University, Shanghai, China.
J Int Med Res. 2010 Mar-Apr;38(2):681-5. doi: 10.1177/147323001003800232.
This study investigated the morphological characteristics of myocardial bridges (MBs) using optical coherence tomography (OCT) imaging compared with coronary artery angiography (CAG) and also evaluated atherosclerotic lesions in the proximal segments of MBs. Twelve patients (seven males, five females, age range 36 - 81 years) with MBs in the left anterior descending coronary artery were enrolled and examined. The mean +/- SD length of the MBs measured by OCT appeared significantly longer than when measured by CAG (20.5 +/- 4.2 mm versus 15.6 +/- 3.5 mm, respectively). The mean +/- SD maximal extent of MB stenosis appeared significantly smaller with OCT compared with CAG (48.7 +/- 4.8% versus 55.3 +/- 2.6%, respectively). Intimal thickening was observed only in the proximal 2 cm arterial segment of MBs. The morphological and intimal structure characteristics of MBs can be observed clearly with OCT.
本研究采用光学相干断层扫描（OCT）成像技术，与冠状动脉造影（CAG）对比，研究心肌桥（MBs）的形态学特征，并评估MBs近端节段的动脉粥样硬化病变。纳入12例左前降支冠状动脉存在MBs的患者（7例男性，5例女性，年龄范围36 - 81岁）并进行检查。OCT测量的MBs平均长度±标准差明显长于CAG测量的结果（分别为20.5±4.2mm和15.6±3.5mm）。与CAG相比，OCT显示的MB狭窄最大程度的平均±标准差明显更小（分别为48.7±4.8%和55.3±2.6%）。仅在MBs近端2cm动脉节段观察到内膜增厚。OCT能够清晰观察到MBs的形态和内膜结构特征。
