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Simultaneous 3D T1 weighted, T2 weighted and FLAIR imaging using Serial Connection of Echo Train Acquisitions (SCETA) for Multi-contrast imaging
Naoyuki Takei1, Shohei Fujita2,3, Issei Fukunaga2, Mitsuharu Miyoshi1, Shigeki Aoki2, Suchandrima Banerjee4, and Tetsuya Wakayama1
1MR Applications and Workflow, GE Heatlcare, Tokyo, Japan, 2Juntendo University School of Medicine, Tokyo, Japan, 3The University of Tokyo Graduate School of Medicine, Tokyo, Japan, 4MR Applications and Workflow, GE Heatlcare, Menlo Park, CA, United States
A novel 3D multi-contrast imaging technique using the hybrid acquisition of FSE and GRE provided T1 weighted, T2 weighted and FLAIR images simultaneously. The comparison with conventional 3D imagings in term of image contrast and scan time demonstrated a promising result.
Fig.1. (a) A schematic pulse sequence diagram of SCETA (Serial Connection of Echo Train acquisition) to acquire T1w, T2w and FLAIR using the hybrid acquisition of FSE and GRE. (b) Echo signal of white matter, gray matter and CSF builds three imaging contrasts in a TR.
Fig. 2. A comparsion result with conventional 3D scan of T2w, FLAIR and T1w. SCETA reduces scan time by a factor of approximately 2.4 while maintaining similar image appearance to conventional scan.