Myocardial T1 and T2 mapping enable quantitative detection of various cardiac diseases. Here we propose a fast 3D free-breathing simultaneous T1 and T2 mapping sequence, which acquires four volumes for joint estimation of T1 and T2. A very small flip angle is used for efficient sampling of the equilibrium longitudinal magnetization. Whole-heart T1 and T2 maps were acquired with high resolution of 1.5×1.5×4mm3 within 5 min in normal human subjects with image quality comparable to conventional 2D methods.
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