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Fig. 1 | Journal of Cardiovascular Magnetic Resonance

Fig. 1

From: Accelerated high-resolution free-breathing 3D whole-heart T2-prepared black-blood and bright-blood cardiovascular magnetic resonance

Fig. 1

Proposed 3D whole-heart high-resolution motion-resolved accelerated T2-prepared Bright-blood and black-blOOd phase SensiTive inversion recovery (BOOST) for simultaneous black-blood late gadolinium enhancement (LGE) and bright-blood coronary cardiovascular magnetic resonance angiography (CCMRA). a A T2-prepared (T2Prep) inversion recovery (IR) module is applied at odd heartbeats (T2Prep-IR BOOST, magnitude image), whereas a b T2-prepared module is acquired at even heartbeats (T2Prep BOOST, reference image). In the latter, a SPIR pulse is used for fat saturation. In the former, the inversion time (TI) is set to null the signal from healthy viable myocardium and the fat signal is suppressed using a STIR-like fat approach. Both acquisitions are performed using a variable-density 3D Cartesian trajectory with spiral profile order and a high flip-angle of 90°. A low-resolution 2D image navigator (iNAV) is acquired at every heartbeat, before each spiral interleave of the 3D data acquisition, to estimate translational respiratory motion along the superior-inferior and left–right directions. c This motion information is used in the XD-ORCCA reconstruction to generate high-quality respiratory-resolved motion-compensated T2Prep-IR BOOST and T2Prep BOOST images from undersampled acquisitions. Then, the respiratory bin images are combined in a PSIR reconstruction to d generate a black-blood LGE image (PSIR BOOST) for scar visualization. The bright-blood T2Prep BOOST image (reference image, b) allows for coronary lumen visualization

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