冠状动脉肌桥的64排CTA检出率及临床研究

Positive Rate of 64-Slice Spiral Compute Tomegraphy and Clinical Study in Patient with Myocardial Bridge

目的探讨提高64排螺旋CT诊断冠状动脉肌桥的检出率及肌桥的临床意义。方法回顾性分析我院在2006-05-07-2007-05-30间,应用64排螺旋CT对4 695例患者CTA的临床资料,观察其中有症状的50例患者的临床表现和治疗。结果在4 695例心脏64排螺旋CT造影（CTA）的人群中,发现3 309例冠状动脉肌桥,检出率为70.5%。其中,左前降支2 883例（87.39%）,左旋支66例（1.99%）,右冠状动脉360例（10.88%）。结论64-排螺旋CT可提高心肌桥的检出率,冠脉肌桥多发于左前降支,临床表现出不同程度的心肌缺血、心绞痛、心律失常、心肌梗死等。β-受体阻滞剂,钙拮抗剂对心肌桥疗效确切。

Objective To investigate rosing positive rate of 64- slice spiral compute tomegraphy and the clinical significance of coronary myocardail bridge （CMB）. Methods We retrospective analysis the clinical data and the results of 64 - slice spiral compute tomegraphy of 3 309 patients with CMB We obscved the clinical manifestation and management in patient with CMB from them. Results We found 3 309 patient with CMB in 4 695 patient receiving 64 - slice spiral compute tomegraphy from May 7.2006 to May 30.2007. Positive rata of CMB was 70.5 % and 2 883 CMB （87.39 % ） in left descending artery, 66 CMB in left circum artery, 360 CMB in right corcnary artery prospectively. Conclusion the 64 - slice spiral compute tomegraphy may rosc positive rate of CBM is the most in left descending artery. CMB is responsible for myocardial ischemia, angina, arrhythmia and myocardail infarction beta- block and the Calcium Antagonist is effective in symptomatic patient with CMB.