[Table/Fig-1]:

Balthazar CTSI Scoring (1990)

Prognostic Indicator	Points
Normal pancreas	0
Focal or diffuse enlargement of pancreas	1
Intrinsic pancreatic abnormalties with inflammatory changes in peripancreatic fat	2
Single, ill defined fluid collection or phlegmon	3
Two or more poorly defined collections or presence of gas in or adjacent to the pancreas	4
Extent of pancreatic inflammation was assigned points from 0-4. The presence and extent of necrosis was classified into four categories and awarded points from 0-6.

Necrosis	Points
None	0
≤30%	2
30-50%	4
≥50%	6
The Balthazar CTSI was calculated by adding the above points in each case and the total score was then categorized as: Mild Pancreatitis    CTSI Score 0-3 Moderate Pancreatitis  CTSI Score 4-6 Severe Pancreatitis    CTSI Score 7-10