Article Figures & Data
Figures
- FIG 1.
Examples of WM and GM longitudinal magnetizations (Mz) evolution in a repetition period (TR) for the EDGE (A) and EDGE-MP2RAGE (B) sequences. With EDGE contrast (A), the center of the data-acquisition window, which coincides with the k-space center (ie, k = 0), is placed when WM and GM have comparable signal intensity but opposite polarity. With EDGE-MP2RAGE (B), the first acquisition (ie, INV 1) is designed to provide the EDGE contrast. A.U. indicates arbitrary unit.
- FIG 2.
Examples of EDGE (INV 1, A–C) images and T1-weighted (T1w) images (D–F) acquired with the EDGE-MP2RAGE reformatted into sagittal, axial, and coronal planes. The ROI (red circles in A–C) for WM and GM signal intensity measurements are also shown.
Tables
EDGE-MP2RAGE sequence parameters
Acquisition Plane TR (Sec) TI1/TI2 (Sec) FA1/FA2 BW (Hz/px) Acceleration FOV (mm2) Matrix Resolution (mm3) Sagittal 4.5 0.8/2.7 5°/4° 200 3× 230 × 230 × 154 296 × 296 × 192 0.8 × 0.8 × 0.8 Note:—FA indicates flip angle; BW, bandwidth.
