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©The Author(s) 2023.
World J Radiol. Jun 28, 2023; 15(6): 157-169
Published online Jun 28, 2023. doi: 10.4329/wjr.v15.i6.157
Published online Jun 28, 2023. doi: 10.4329/wjr.v15.i6.157
Table 3 Structured report template of magnetic resonance imaging for acute pancreatitis
Contents | Descriptions |
Pancreas itself | |
Enlargement | Diffuse; Focal (head/neck/body/tail) |
Edge | Clear; blur |
Signal intensity | Variable owing to internal necrosis and/or hemorrhage |
Enhancement | Homogeneous; Heterogeneous |
Pancreatic duct | Normal; dilated (mm); stricture (mm); calculi (mm) |
Pancreatic necrosis | |
Position | Head; neck; body; tail |
Range1 | < 30%; 30%-50%; > 50% |
Peripancreatic changes | |
Renal fascia and peritoneum | Thickening (anterior renal fascia/posterior renal fascia/lateral cone fascia/lateral abdominal wall peritoneum); Enhanced or not? |
Peripancreatic fat space | Clear; Blur |
Peripancreatic fat necrosis | Site (retroperitoneal space/transverse colonic mesentery/small intestinal mesentery); amount (patchy/large flake); whether combined with hemorrhage (fat-suppressed T1-hyperintense)[21] |
Peripancreatic collection | Position2; volume (linear/patchy/large); encapsulated round/oval; contents (homogeneous fluid signal/heterogeneous mixed signal) |
Local complication | |
I Pancreatic/peripancreatic collection (type) | Some of the features can be seen in the above peripancreatic collection |
APFC | Yes or no? |
ANC | Yes or no? |
Pseudocyst | Yes or no? If yes, thickness of the cyst wall (mm, uniform?); Is adjacent to and pushing out adjacent organs (stomach/duodenum, etc.)? |
WON | Yes or no? If yes, thickness of the lesion wall (mm); Whether the wall is enhanced and the pattern of enhancement? “Non-liquid substances” within WON (< 10%, 10%-40%, > 40%)[23]; Is WON close to adjacent organs (stomach/duodenum/AC/DC)? |
II Infection of collection | Suggestive signs [bubble sign, air-fluid level sign] |
Complicated intestinal fistula | Relationship between collection and the intestinal fistula canal, and the intestinal segment of intestinal fistula (duodenum/AC/DC) |
III Pancreatic duct disruption syndrome | Site (head/neck/body); Is MPD dilated on the upstream/caudal side of the interruption (mm)? Relationship with adjacent pseudocyst/WON? |
IV Vascular complications | |
Venous thrombosis | SV; SMV; PV, etc. |
Sinistral portal hypertension | Establishment of collateral vascular network3 |
Pseudoaneurysm | Size (mm) and involvement artery4 |
Organ complications | |
Liver | Fatty liver (Signal difference of liver in the in-phase and out-of-phase) |
Gallbladder and bile duct | Gallbladder stones (sandy/granular/filled); Common bile duct stones (site, number, size) and maximum duct diameter (mm) |
Lung | Extent of pneumonia, pleural effusion |
Subcutaneous and intermuscular space | Edema/effusion |
Severity image score (MRSI) | (0-10) score |
Comparison with previous imaging findings | For AP review, describe the pancreatic/peripancreatic changes after treatment; for surgical treatment, describe the site of the external drainage tube and internal covered metal stent |
- Citation: Song LJ, Xiao B. Acute pancreatitis: Structured report template of magnetic resonance imaging. World J Radiol 2023; 15(6): 157-169
- URL: https://www.wjgnet.com/1949-8470/full/v15/i6/157.htm
- DOI: https://dx.doi.org/10.4329/wjr.v15.i6.157