Atherosclerotic pattern of coronary myocardial bridging assessed with CT coronary angiography

作者：La Grutta Ludovico^*; Runza Giuseppe; Galia Massimo; Maffei Erica; Lo Re Giuseppe; Grassedonio Emanuele; Tedeschi Carlo; Cademartiri Filippo; Midiri Massimo

来源：International Journal of Cardiovascular Imaging, 2012, 28(2): 405-414.

DOI：10.1007/s10554-011-9817-2

• Multislice computed tomography
• Coronary angiography
• Coronary anomalies
• Myocardial bridging
• Coronary artery disease

The aim of our study was to evaluate the atherosclerotic pattern of patients with coronary myocardial bridging (MB) by means of CT Coronary Angiography (CT-CA). 254 consecutive patients (166 male, mean age 58.6 +/- A 10.3) who underwent 64-slice CT-CA according to current clinical indications were reviewed for the presence of MB and concomitant segmental atherosclerotic pattern. Coronary plaques were assessed in all patients enrolled. 73 patients (29%) presented single (90%) or multiple (10%) MB, frequently (93%) localized in the mid-distal left anterior descending artery. The MB segment was always free of atherosclerosis. Segments proximal to the MB presented: no atherosclerotic disease (n = 37), positive remodeling (n = 23), %26lt; 50% (n = 14), or %26gt; 50% stenoses (n = 7). Distal segments presented a different atherosclerosis pattern (P %26lt; 0.0001): absence of disease (n = 73), no significant lesions (n = 8). No significant differences were found between segments proximal to MB and proximal coronary segments apart from left main trunk. Pattern of atherosclerotic lesions located in segments 6 and 7 significantly differs between patients with MB and patients without MB (P %26lt; 0.05). CT-CA is a reliable method to non-invasively demonstrate MB and related atherosclerotic pattern. CT-CA provides new insight regarding atherosclerosis distribution in segments close to MB.

• 出版日期2012-2