Table 6.

Standard MR rectum protocol used in our cohort with b800 and b1500 s/mm² diffusion-weighted sequences

Sequences	1	2	3	4	4		5	7
Series descriptor	Axial T2	Sagittal T2	Oblique axial T2	Oblique coronal T2 thru tumor	Oblique coronal T2 sphincter	G	Axial DWI b 800	Focus diffusion
Generic sequence name	FSE T2	FSE T2	FSE T2	FSE T2	FSE T2	L	2D	Focus diffusion
Plane	Axial	Sagittal	Oblique axial	Oblique coronal	Oblique coronal	U	Axial	Axial
Options	Fast/NPW/ED	Fast/NPW/ED	Fast/NPW/ED	Fast/NPW/ED	Fast/NPW/ED	C	EPI, DIFF, ASSET	EPI, DIFF
Field of view (cm)	20–24	18	18	18	18	A	24	16
Slice thickness (mm)	5	4	3	3	3	G	5	5
Gap (mm)	1	1	1	1	1	O	1	1
b value							b800	1500
Saturation pulse	S/I/A	A	S/I/A	A	A	N	N/A	N/A
TE1/TE2	110	102	102	102	102		Min	Min
TR	4000–6000	4000–6000	4000–6000	4000–6000	4000–6000	I	6000	6000
Flip angle	90	90	90	90	90	V	N/A	N/A
Bandwidth (kHz)	32	32	32	32	32		N/A	N/A
ETL	24	24	24	24	24	G	na	N/A
NEX	3	4	4	4	4	I	16	16
Frequency steps	320	320	320	320	320	E	128	70
Phase encoding steps	224	224	224	224	224	V	128	140
Frequency direction	A/P	A/P	A/P	A/P	A/P	N	R/L	R/L