Abstract #1231

Fast T2 Mapping of the Heart from Highly Undersampled Radial FSE Data Using a Principal Component-Based Reconstruction Algorithm

Tomoe Barr¹, Chuan Huang², Aiden Abidov³,⁴, Jaspreet Singh³, Bujji Ainapurapu³, Dipak KC³, Scott Squire⁴, Jean-Philippe Galons⁴, Maria I. Altbach⁵

¹Biomedical Engineering, University of Arizona, Tucson, AZ, United States; ²Mathematics, University of Arizona, United States; ³Medicine, University of Arizona, United States; ⁴Radiology, University of Arizona, United States; ⁵Radiology, University of Arizona, Tucson, AZ, United States

T2-weighted imaging is an important modality in cardiac MRI and has been used for the diagnosis of a series of pathologies. Recently, the importance of T2 mapping of the heart has been highlighted. In this work we present a double inversion radial fast spin-echo (DIR-RADFSE) technique combined with a principal component based reconstruction algorithm recently developed for T2 estimation. The method provides motion insensitivity and high spatial and temporal resolution data for the reconstruction of T2 maps from data acquired in a single breath hold.