Describing Peripancreatic Collections According to the Revised Atlanta Classification of Acute Pancreatitis: An International Interobserver Agreement Study

Stefan A Bouwense, Sandra van Brunschot, Hjalmar C van Santvoort, Marc G Besselink, Thomas L Bollen, Olaf J Bakker, Peter A Banks, Marja A Boermeester, Vincent C Cappendijk, Ross Carter, Richard Charnley, Casper H van Eijck, Patrick C Freeny, John J Hermans, David M Hough, Colin D Johnson, Johan S Laméris, Markus M Lerch, Julia Mayerle, Koenraad J MorteleMichael G Sarr, Brian Stedman, Santhi Swaroop Vege, Jens Werner, Marcel G Dijkgraaf, Hein G Gooszen, Karen D Horvath, Acute Pancreatitis Interobserver Study Group

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVES: Severe acute pancreatitis is associated with peripancreatic morphologic changes as seen on imaging. Uniform communication regarding these morphologic findings is crucial for accurate diagnosis and treatment. For the original 1992 Atlanta classification, interobserver agreement is poor. We hypothesized that for the revised Atlanta classification, interobserver agreement will be better.

METHODS: An international, interobserver agreement study was performed among expert and nonexpert radiologists (n = 14), surgeons (n = 15), and gastroenterologists (n = 8). Representative computed tomographies of all stages of acute pancreatitis were selected from 55 patients and were assessed according to the revised Atlanta classification. The interobserver agreement was calculated among all reviewers and subgroups, that is, expert and nonexpert reviewers; interobserver agreement was defined as poor (≤0.20), fair (0.21-0.40), moderate (0.41-0.60), good (0.61-0.80), or very good (0.81-1.00).

RESULTS: Interobserver agreement among all reviewers was good (0.75 [standard deviation, 0.21]) for describing the type of acute pancreatitis and good (0.62 [standard deviation, 0.19]) for the type of peripancreatic collection. Expert radiologists showed the best and nonexpert clinicians the lowest interobserver agreement.

CONCLUSIONS: Interobserver agreement was good for the revised Atlanta classification, supporting the importance for widespread adaption of this revised classification for clinical and research communications.

Original languageEnglish
Pages (from-to)850-857
Number of pages8
JournalPancreas
Volume46
Issue number7
DOIs
Publication statusPublished - Aug 2017
Externally publishedYes

Cite this

Bouwense, S. A., van Brunschot, S., van Santvoort, H. C., Besselink, M. G., Bollen, T. L., Bakker, O. J., ... Acute Pancreatitis Interobserver Study Group (2017). Describing Peripancreatic Collections According to the Revised Atlanta Classification of Acute Pancreatitis: An International Interobserver Agreement Study. Pancreas, 46(7), 850-857. https://doi.org/10.1097/MPA.0000000000000863