Meeting Banner
Abstract #3131

Rapid and Accurate T 2 Mapping from Multi Spin Echo Data Using Bloch-Simulation-Based Reconstruction

Noam Ben-Eliezer 1 , Daniel K. Sodickson 1 , and Kai Tobias Block 1

1 Department of Radiology, New York University School of Medicine, Bernard and Irene Schwartz Center for Biomedical Imaging, New York, NY, United States

Accurate quantification of T 2 values in vivo is a long-standing challenge hampered by the extensive scan times associated with full Spin-Echo ( SE ) acquisitions, or by the inherent bias of rapid multi-SE sequences resulting from stimulated and indirect echoes. Recently, a novel proof-of-principle T 2 mapping technique the echo-modulation curve ( EMC ) algorithm has been proposed based on precise Bloch simulations. In this work we establish the EMC technique applicability to various body regions, analyze its accuracy and precision at different SNR levels and present extensions both to non-Cartesian trajectories and to multiparametric mapping of T 2 relaxation, proton density and transmit B 1 + profile.

This abstract and the presentation materials are available to members only; a login is required.

Join Here