PET/MRI and PET/CT hybrid imaging of rectal cancer – description and initial observations from the RECTOPET (REctal Cancer trial on PET/MRI/CT) study

Table 2 MRI protocol parameters used in the RECTOPET study

Sequence	TR [ms]	TE [ms]	ETL	FOV [mm]	Slice thickness/gap [mm]	NEX	Matrix	Acq. time	BW [Hz/px]
Sag T2 FRFSE	3900	102	20	200 × 200	3.0/0.0	3	320 × 320	04:33	223
Ax T2 FRFSE	5719	100	16	270 × 270	4.0/0.4	1	384 × 256	03:38	325
Cor T2 FRFSE	4000	102	23	220 × 220	3.0/0.0	3	320 × 320	04:16	260
T2 perp (ax)	4000	100	16	210 × 210	3.0/0.0	2	384 × 256	04:32	260
Ax DWI Focus	3500	69.4	–	240 × 120	4.0/0.0	1	160 × 80	04:47	3125
Ax T1 FSPGR	4.7	1.9	–	256 × 256	1	1	256 × 256	04:53	488

FRFSE Fast relaxation fast spin echo, FSPGR Fast spoiled gradient echo, TR Repetition time, TE Echo time, ETL Echo train length, FOV Field of view, NEX Number of excitations, BW Bandwidth, DWI Diffusion-weighted magnetic resonance imaging

ISSN: 1470-7330