Abstract
Introduction Coronary CT angiography (CTA) with 64-slice CT has become a routine clinical test for patients with suspected coronary artery disease. However, the interpretation of CTA images is still limited by moderate and severe coronary artery calcification. Coronary MR angiography (MRA), on the other hand, does not suffer from beam hardening artifact by high density calcification and can potentially visualize the lumen of calcified coronary arteries.
Highlights
Coronary CT angiography (CTA) with 64-slice CT has become a routine clinical test for patients with suspected coronary artery disease
Coronary MR angiography (MRA) was performed on a 1.5 Tesla scanner with an ECG-triggered 3D steady-state free procession sequence during free breathing
Coronary CTA and calcium score scan were performed on a 64-slice CT scanner
Summary
Coronary CT angiography (CTA) with 64-slice CT has become a routine clinical test for patients with suspected coronary artery disease. The interpretation of CTA images is still limited by moderate and severe coronary artery calcification. Coronary MR angiography (MRA), on the other hand, does not suffer from beam hardening artifact by high density calcification and can potentially visualize the lumen of calcified coronary arteries. To compare the diagnostic performance of coronary MRA and CTA for detecting significant stenosis (>50%) in patients with high calcium score using conventional angiography (CAG) as a standard of reference
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