Table 1.

MRI sequence parameter

Parameter	HR-TSE	3D UTE
Technique	Turbo-spin echo	Spoiled FID
Excitation	Slice selective	Non-slice selective
Flip angle (°)	90	10
RF pulse duration (ms)	4.2	0.05
Echo time (ms)	8.1	0.05
Repetition time (ms)	625	5
Number of echoes	16	1
Acquired resolution (mm³)	0.4 × 0.4 × 1	0.8 × 0.8 × 0.8
Field of view (mm³)	230 × 230 × 8	120 × 120 × 120
Scan time	5:32	7:49

3D UTE, three-dimensional ultrashort echo time; HR TSE, high spatial resolution turbo-spin echo; FID, free induction decay; RF, radiofrequency.