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Abstract #1413

Referenceless Acquisition of Phase-Sensitive Inversion-Recovery with Decisive Reconstruction (RAPID) for Late Gadolinium Enhancement Imaging

Jinnan Wang1, Peter Brnert2, Huijun Chen3, Gregory J. Wilson4, Chun Yuan4, Jeffrey H. Maki4

1Philips Research North America, Briarcliff Manor, NY, United States; 2Philips Research Laboratory, Hamburg, N.A., Germany; 3Tsinghua University, Beijing, China; 4Radiology, University of Washington, Seattle, WA, United States

Phase Sensitive Inversion Recovery (PSIR) is now the method of choice for myocardial infarction (MI) detection and quantification. Compared to regular IR images, phase sensitive (PS) reconstructed images offer doubled dynamic range, improved contrast and higher flexibility in sequence design. One of the limitations of the PSIR technique is that it relies on a full size reference image to restore the polarity information, which makes the scan time much longer (essentially doubled) and more susceptible to motion artifacts. In this study, we propose the Referenceless Acquisition of Phase-sensitive Inversion-recovery with Decisive reconstruction (RAPID) that can reliably restore the polarity of the magnetization without relying on the reference image.