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.