High field MR carotid vessel wall imaging: reproducibility of five different MR-weightings

Table 1 Carotid Imaging Protocol at 3T: Scan Parameters

Parameters	Black-blood T1-weighted	Black-blood T2-weighted	Black-blood Proton-Density-weighted	T1-weighted	TOF
Acquisition sequence	TFE	TSE	TSE	TSE	FFE
Acquisition Mode	2D	2D	2D	2D	3D
Echo Time (msec)	3.54	50	20	10	3.30
Repetition Time (msec)	12.41	2 heartbeats	2 heartbeats	1 heartbeat	26.20
Excitation flip angle (degrees)	45	90	90	90	20
FOV (cm)	14 x 14	14 x 14	14 x 14	14 x 14	14 x 14
Resolution (mm2)	0.461 x 0.461	0.461 x 0.461	0.461 x 0.461	0.461 x 0.461	0.461 x 0.461
Slice thickness/gap (mm)	2; 0.71	2; 0.71	2; 0.71	2; 0.71	2; 0.71
Slices	9	9	9	9	9

TSE, turbo (segmented) spin-echo; FFE, fast field echo (gradient echo); TFE, turbo field echo; FOV, Field of view; TOF, time of flight

ISSN: 1532-429X