Comparison of phase and magnitude images using PSIR sequence in the study of infarct size with delayed-enhancement cardiac magnetic resonance imaging at 3 Tesla
نویسندگان
چکیده
Delayed-Enhancement Cardiac Magnetic Resonance (DE-CMR) imaging with a gadolinium-based contrast agent strongly correlates with infarct size [1] and is a major tool for the assessment of myocardial viability [2]. A phase-sensitive inversion-recovery (PSIR) technique has been described at 1.5 T for assessment of myocardial infarct size [3]. With this technique, the signal polarity of the inversion recovery DE image is restored by using phase information provided by a reference image. The aim of the present study was to evaluate on a 3.0 T system the performance of the phase and magnitude images generated by the PSIR sequence for the determination of myocardial infarct size in DE-CMR imaging. The magnitude image acquired with an appropriate TI is equivalent to the conventional Turbo FLASH sequence [4].
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