Table 1.

MRI sequence parameters: also see OAI homepage http://www.oai.ucsf.edu

MRI parameters
	2D TSE	2D TSE	DESS
Weighting	Int	Int	T2
Plane	Coronal	Sagittal	Sagittal
Fat sat	No	Yes	WE
Matrix (phase)	307	313	307
Matrix (freq)	384	448	384
No. of slices	41	37	160
FOV (mm)	140	160	140
Slice thickness (mm)	3	3	0.7
Skip (mm)	0	0	0
Flip angle (°)	180	180	25
TE/TI (ms)	29	30	4.7
TR (ms)	3,850	3,200	16.3
BW (Hz/pixel)	352	248	185
Chemical shift (pixel)	1.3	0	0
NAV (NEX)	1	1	1
Echo train length	7	5	1
Phase encode axis	R/L	S/I	A/P
Phase partial fourier (8/8 = 1)	1	1	0.875
Readout partial fourier (8/8 = 1)	1	1	1
Slice partial fourier (8/8 = 1)	1	1	0.875
Options	Elliptical k-space filter and large FOV filter	Elliptical k-space filter and large FOV filter	Elliptical k-space filter, elliptical sampling, and lager FOV filter
Distance factor (%)	0	0	0
Phase oversampling	20	4	0
Slice oversampling	0	0	10
Phase resolution	80	70	80
Averaging technique	Short term	Short term	Short term
Gradient rise time	Fast	Fast	Fast
RF amplitude	Normal	Normal	Fat
X-resolution (mm)	0.365	0.357	0.365
Y-resolution (mm)	0.456	0.511	0.456
Calc time (min)	3.4	4.7	11.2
Scan time (min)	3.4	4.7	10.2