Acute interstitial edematous pancreatitis: Findings on non-enhanced MR imaging

Table 1 MR severity score index

Prognostic indications	Characteristic	Points
Pancreatic	Normal pancreas	0
Inflammation	Focal or diffuse enlargement of the pancreas	1
	Intrinsic pancreatic abnormalities with inflammatory changes in pancreatic fat	2
	Single, poorly defined fluid collection or phlegmon	3
	Two or more poorly defined collection or presence of gas in or adjacent to the pancreas	4
Pancreatic necrosis	No necrosis	0
	30%	2
	30%-50%	4
	> 50%	6

Table 2 MR findings of IEP in 53 patients

	PFP n (%)	PPF n (%)	PPFS n (%)	LRFP n (%)	RRFP n (%)	PVF n (%)	FA n (%)
In-phase	18 (34)	10 (19)	15 (28)	26 (49)	8 (15)	1 (2)	7 (13)
SSFSE T2W	33 (62.3)	13 (25)	24 (45)	31 (58)	16 (30)	14 (26)	10 (19)
R -T T2W	45 (85)	13 (25)	29 (55)	41 (77)	22 (42)	24 (45)	10 (19)
χ2 (P values)1	28.9 (< 0.001)	0.6 (0.7)	7.8 (0.02)	9.3 (0.01)	9.1 (0.01)	27.1 (< 0.001)	0.8 (0.7)

PFP: Pancreatic fascial plane; PPF: Peripancreatic fluid; PPFS: Peripancreatic fat stranding; LRFP: Left renal fascial plane; RRFP: Right renal fascial plane; PVF: Perivascular fluid; FA: Free ascites.

¹Comparison among three sequences.