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Table 2 1.5T and 3T brain MRI acquisition protocols

From: Automated segmentation of cerebral deep gray matter from MRI scans: effect of field strength on sensitivity and reliability

  1.5T 3T
Scanner manufacturer GE Signa LX Siemens Skyra
Operation system version 11× D13
Coil Quadrature head coil 20-channel head and neck coil
Type of sequence 3D SPGR 3D MPRAGE
Acceleration factor for parallel imaging N/A 2
Orientation Sagittal Sagittal
Field of view (cm) 24 × 24 24 × 25.6
Matrix size 256 × 256 240 × 256
Number of slices 166 176
Repetition time (msec) 8.176 2300
Echo time (msec) 3.856 2.96
Flip angle (degrees) 20 9
Voxel size (mm) 0.938 × 0.938 × 1.2 1.0 × 1.0 × 1.0
Scan time (minutes) 6:24 5:12
Number of signal averages 1 1
  1. Key: SPGR spoiled gradient recalled echo, MPRAGE magnetization-prepared rapid acquisition gradient echo