Table 1.

MRI Parameters

	3-plane	2D TSE	3D DESS	2D TSE
Weighting	T1W	Int	T2*	Int
Plane	3-plane	Coronal	Sag	Sagittal
Fat Sat	No	No	WE	Yes
Matrix (phase)	256	307	307	313
Matrix (freq)	512	384	384	448
No. of slices	21	41	160	37
FOV (mm)	200	140	140	160
Slice thickness (mm)	5	3	0.7	3
Skip (mm)	1	0	0	0
Flip Angle (deg)	40	180	25	180
TE/TI (ms)	5	29	4.7	30
TR (ms)	10	3850	16.3	3200
BW (Hz/pixel)	250	352	185	248
Chemical Shift (pixels)	1.8	1.3	0	0
NAV (NEX)	1	1	1	1
Echo train length	1	7	1	5
Phase Encode Axis	A/P, R/L	R/L	A/P	S/I
Phase Partial Fourier (8/8 = 1)	1	1	0.875	1
Readout Partial Fourier (8/8 = 1)	1	1	1.000	1
Slice Partial Fourier (8/8 = 1)	1	1	0.875	1
Options:		elliptical k-space filter and large FOV filter	elliptical k-space filter, elliptical sampling large FOV filter	elliptical k-space filter and large FOV filter
Distance Factor (%)	50	0	0	0
Phase Oversampling	0	20	0	40
Slice Oversampling	0	0	10	0
Phase Resolution	50	80	80	70
Averaging Technique	Short Term	Short Term	Short Term	Short Term
Gradient Rise Time	Fast	Fast	Fast	Fast
RF Amplitude	Normal	Normal	Fast	Normal
X-Resolution (mm)	0.391	0.365	0.365	0.357
Y-Resolution (mm)	0.781	0.456	0.456	0.511
Calc time (min)	2.7	3.4	11.2	4.7
Scan Time (min)	0.5	3.4	10.6	4.7