Note: This calculator returns the modifed CTSI which is not to be confused with the original system. Please consult institutional or national guidelines if you are not sure which system to use. A calculator for the original CTSI can be found here.
Notes
- This score is an upgrade to the original system with the aim to better guide patient management, and to correlate it more closely with clinical outcomes.
- The maximum score is 10. Severity is graded as follows:
- 0-2: mild
- 4-6: moderate
- 8-10: severe
- Mortele KJ, Wiesner W, Intriere L, Shankar S, Zou KH, Kalantari BN, Perez A, vanSonnenberg E, Ros PR, Banks PA, Silverman SG. A modified CT severity index for evaluating acute pancreatitis: improved correlation with patient outcome. AJR Am J Roentgenol. 2004 Nov;183(5):1261-5. doi: 10.2214/ajr.183.5.1831261. PMID: 15505289.
- Bollen TL, Singh VK, Maurer R, Repas K, van Es HW, Banks PA, Mortele KJ. Comparative evaluation of the modified CT severity index and CT severity index in assessing severity of acute pancreatitis. AJR Am J Roentgenol. 2011 Aug;197(2):386-92. doi: 10.2214/AJR.09.4025. PMID: 21785084.
- For further information the Radiopaedia.org article provides a good summary.
Last updated: 2021-08-24