The utility of texture analysis based on quantitative synthetic magnetic resonance imaging in nasopharyngeal carcinoma: a preliminary study

Table 1 Imaging parameters for MRI protocol

Parameters	Axial T1WI	Axial T2WI/FS	DWI	Enhanced axial T1WI/FS	SyMRI
Sequence	FSE	FSE	EPI	FSE	MAGiC
TR (ms)	482	6100	2930	250	6200
TE (ms)	13.6	85	80	13.63	18.9/94.7
FOV (cm)	26	26	26	26	26
Acquisition matrix (phase × frequency)	256 × 320	256 × 288	128 × 96	256 × 320	256 × 320
Slice thickness/gap (mm)	4.0/0.4	4.0/0.4	4.0/0.4	4.0/0.4	4.0/0.4
NEX	2.0	2.0	4.0	2.0	1.0
Acquisition time (min)	4.02	4.41	1.22	3.47	7.02

MRI, magnetic resonance imaging; T1WI, T1-weighted Imaging; T2WI, T2-weighted Imaging; FS, fat suppression; DWI = diffusion-weighted imaging; SyMRI, synthetic magnetic resonance imaging; FSE = fast spin echo; EPI = echo planar imaging; NEX = number of excitations; TR = repetition time; TE = echo time; FOV = field of view; MAGiC = magnetic resonance image compilation

ISSN: 1471-2342