TY - JOUR
AU1 - Hetzer, Stefan
AU2 - Mildner, Toralf
AU3 - Möller, Harald E.
AB - A robust modification of echo‐planar imaging dubbed double‐shot echo‐planar imaging with center‐out trajectories and intrinsic navigation (DEPICTING) is proposed, which permits imaging at ultra‐short echo time. The k‐space data is sampled by two center‐out trajectories with a minimal delay achieving a temporal efficiency similar to conventional single‐shot echo‐planar imaging. Intersegment phase and intensity imperfections are corrected by exploiting the intrinsic navigator information from both central lines, which are subsequently averaged for image reconstruction. Phase errors induced by inhomogeneities of the main magnetic field are corrected in k‐space, recovering the superior point‐spread function achieved with center‐out trajectories. The minimal echo time (<2 msec) is nearly independent of the acquisition matrix permitting applications, which simultaneously require high spatial and temporal resolution. Examples of demonstrated applications include anatomical imaging, BOLD‐based functional brain mapping, and quantitative perfusion imaging. Magn Reson Med, 2010. © 2010 Wiley‐Liss, Inc.
TI - A Modified EPI sequence for high‐resolution imaging at ultra‐short echo time
JF - Magnetic Resonance in Medicine
DO - 10.1002/mrm.22610
DA - 2011-01-01
UR - https://www.deepdyve.com/lp/wiley/a-modified-epi-sequence-for-high-resolution-imaging-at-ultra-short-m0SfuKv4c9
SP - 165
EP - 175
VL - 65
IS - 1
DP - DeepDyve
ER -