Coronary mra angiography at 3T: fat suppression versus water-fat separation
نویسندگان
چکیده
Background Suppression of lipid signal is a basic requirement in coronary magnetic resonance angiography (CMRA) because coronary arteries are embedded in epicardial fat and signal from fat can decrease coronary vessel conspicuity. Most CMRA scans are currently performed with fat suppression techniques such as Spectral Presaturation with Inversion Recovery (SPIR). However, methods based on spectrally-selective fat saturation are sensitive to B0 and B1 field inhomogeneities. Recent improvements in chemical shift based water fat separation methods such as Dixon[1,2]provides an alternative to conventional spectrally-selective fat suppression techniques. The purpose of this study was to compare SPIR technique and Dixon water fat separation at 3.0 T for CMRA.
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