Table 1.

MRI parameters in protocol for acute biliary obstruction

Sequence	TR (ms)	TE (ms)	Flip angle	Slice thickness (mm)	Intersection gap (mm)	Matrix size	FOV (cm)
Axial HASTE	infinite	87	150	4	0.7	256 × 256	420
Coronal HASTE	infinite	101	150	6	0.7	320 × 224	350
3D PACE MRCP*	3000	620	180	1.2	1.5	384 × 361	320
3D MRCP Thick Slab	5000	463	180	50	--	384 × 384	350
Axial T2 FSE fat-saturated	2800	90	150	4	0.8	256 × 179	420
DWI#	6400	93	--	8	1.6	192 × 144	350
3D fat-suppressed T1W GRE	3.46	1.28	12	3.3	N/A	256 × 129	350

^*Coronal oblique plane

^#b values of 50, 500, 1000