Deblurring 3D FSE Images via Regularized Iterative Demodulation of T2 Decay

作者：Yan Wen, Ek T. Tan, Maggie Fung, Darryl B. Sneag · 发表于：Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition · 年份：2023 · DOI：10.58530/2022/4434 · 研究领域：Advanced MRI Techniques and Applications、Atomic and Subatomic Physics Research、NMR spectroscopy and applications

The 3D FSE sequence is widely used in clinical MRI for its capability to collect many phase encoding lines in each RF excitation. However, the signals during the long echo train readout are modulated by the T2 decay, resulting in blurring. An algorithm is presented to retrospectively demodulate estimated T2 decay from the actual signal. In the preliminary data, the proposed algorithm demonstrated success in deblurring the images.