Cardiac Magnetization Transfer Imaging Using SSFP at 3T
نویسندگان
چکیده
Introduction: It has been shown recently that the balanced steady-state free-precession (bSSFP) cine sequence, as it is used routinely for the assessment of myocardial function, shows effects of magnetization transfer (MT). These effects were successfully exploited at 1.5 Tesla [1] and at 3 T [2], offering a novel technique for myocardial tissue characterization, e.g. in acute myocardial infarct. However, SSFP at 3 T poses considerable difficulties due to increased susceptibility to off-resonance banding artefacts and limitations in flip angle as mandated by specific absorption rate (SAR) regulations. On the other hand, increased SNR and/or improved spatial resolution achievable at 3 T promise increased diagnostic value compared to 1.5 T. In this work we explored cardiac MT imaging at 3 T.
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