Abstract #3912

1RR Phase Sensitive Inversion Recovery Late Gadolinium Enhancement MRI

Dana C. Peters¹, Daniel A. Herzka², Yuchi Han³, Reza Nezafat³, Basem Dokhan⁴, Warren J. Manning³

¹Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center & Harvard Medical School, boston, ma, USA; ²Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, USA; ³Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center & Harvard Medical School, Boston, MA, USA; ⁴Institute of Biomedical Engineering, , Swiss Federal Institute of Technology (ETH Zrich), Zurich, Switzerland

We have developed a phase-sensitive inversion recovery (PSIR) late gadolinium enhancement (LGE) method using 1 RR (instead of 2) between inversions. This approach acquires a back up image in an acquisition window immediately following the first data acquisition. During this time, signal regrowth provides an image with a longer effective TI, which is useful if the first TI was too short. We preliminarily demonstrate the feasibility of this technique in patients. This technique has important applications for 3D LGE imaging, where 1RR LGE provides shorter scan times.