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. 2018 Jun 27;8(6):e020543. doi: 10.1136/bmjopen-2017-020543

Table 2.

Detailed description of MRI sequences.

Clinical package Sagittal Proton Density (PD), 3 mm slice thickness with 0.3 mm gap. TE=20 ms; TR=1800 ms, ETL 10; FOV 160×145, ACQ matrix 516×384=0.31×0.38 mm, recon matrix 528. Scan time 2:58 min.
Axial PD FatSat, 3 mm slice thickness with 0.3 mm gap. TE=35 ms; TR=3981 ms, ETL 15; FOV 140×140, ACQ matrix 332×330=0.42×0.42 mm, recon matrix 512. Scan time 4:15 min
Sagittal PD FatSat, 3 mm slice thickness with 0.3 mm gap. TE=30 ms; TR=3400 ms, ETL 15; FOV 160×145, ACQ matrix 468×399=0.31×0.40 mm, recon matrix 528. Scan time 3:56 min.
Coronal PD FatSat, 3 mm slice thickness with 0.3 mm gap. TE=30 ms; TR=3572 ms, ETL 16; FOV 160×140, ACQ matrix 516×332=0.31×0.42 mm, recon matrix 528. Scan time 3:56 min
PD FS 3D Sagittal PD FatSat 3D, 0.63 mm slice thickness, TE=185, TR=1300, ETL=63, FOV=144×162, AQC matrix 228×226=0.63×0.63, recon matrix 448. Scan time 6:31 min
T2map Sagittal T2-map (T2 relaxation), 3 mm slice thickness with 0.3 mm gap. TE=n*10 ms; TR=2371 ms, ETL 8; FOV 160×140, ACQ matrix 456×280=0.35×0.50 mm, recon 560. Scan time 5:53 min
T1Rho 3D sagittal spin lock (T1Rho relaxation), 4 mm slice thickness. Spin lock time (1, 10, 20 and 40 ms), (TE=3.3 ms; TR=6.4 ms, ETL 64; FOV 140×140, ACQ matrix 280×268=0.50×0.52 mm, recon 352. Scan time 2:36 min
Qmap Sagittal Qmap (T1 relaxation, T2 relaxation, PD), 3 mm slice thickness with 0.3 mm gap. TE=8.8/110 ms; TR=4217 ms, ETL 16; FOV 160×145, ACQ matrix 364×270=0.40×0.59 mm, recon 576. Scan time 6:19 min

ACQ, Acquisition; ETL, Echo Train Length; FOV, Field of View; TE, Echo Time; TR, Repetition Time.