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Perfusion CT is superior to angiography in predicting pancreatic necrosis in patients with severe acute pancreatitis

  • Original Article—Liver, Pancreas, and Biliary Tract
  • Published:
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Abstract

Background

We performed perfusion computed tomography (P-CT) and angiography of the pancreas in patients with severe acute pancreatitis (SAP) and compared the usefulness of these two methods in predicting the development of pancreatic necrosis.

Methods

We compared P-CT and angiography results taken within 3 days after symptom onset in 21 SAP patients. We divided the pancreas into three areas, the head, body, and tail, and examined each area for perfusion defects (via P-CT) and arterial vasospasms (by angiography). Three weeks later, all patients underwent contrast-enhanced CT to determine whether pancreatic necrosis had developed.

Results

Of the 21 SAP patients, 16 exhibited perfusion defects, while 17 proved positive for vasospasms in at least one area. Fourteen patients developed pancreatic necrosis. Of the 63 pancreatic areas from the 21 SAP patients, perfusion defects appeared in 25 areas (39.7%), 24 of which showed vasospasms (96.0%). Angiography showed 33 areas with vasospasms (52.4%), of which 24 showed perfusion defects (72.7%). Of the 25 areas with perfusion defects, 21 developed pancreatic necrosis (84.0%). Of the 33 areas with vasospasms, 21 developed necrosis (63.6%). Pancreatic necrosis developed only in the areas positive both for perfusion defects and for vasospasms. No areas without perfusion defect or vasospasms developed pancreatic necrosis. P-CT predicted the development of pancreatic necrosis with significantly higher accuracy than angiography.

Conclusion

While both P-CT and angiography are useful in predicting the development of pancreatic necrosis in patients with SAP, P-CT appears to be more accurate for this purpose.

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Abbreviations

CT:

Computed tomography

P-CT:

Perfusion CT

CECT:

Contrast-enhanced CT

SAP:

Severe acute pancreatitis

H.U:

Hounsfield unit

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Acknowledgments

Grant support: Japan Society for the Promotion of Science.

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All authors declare that they are free of any commercial affiliations or other financial interests that might lead to the appearance of conflict of interest.

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Correspondence to Tsutomu Chiba.

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Tsuji, Y., Hamaguchi, K., Watanabe, Y. et al. Perfusion CT is superior to angiography in predicting pancreatic necrosis in patients with severe acute pancreatitis. J Gastroenterol 45, 1155–1162 (2010). https://doi.org/10.1007/s00535-010-0267-8

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  • DOI: https://doi.org/10.1007/s00535-010-0267-8

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