IUS-IBD Scores Calculator

Intestinal Ultrasound IBD Scores Calculator
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Select a score
Crohn’s Disease
Ulcerative Colitis
FMS 2025
International Bowel Ultrasound Segmental Activity Score
Crohn’s Disease
Enter value in mm
IBUS-SAS Score: 0.00
Ultrasound Remission
1. Novak KL, Nylund K, Maaser C, Petersen F, Kucharzik T, Lu C, Allocca M, Maconi G, de Voogd F, Christensen B, Vaughan R, Palmela C, Carter D, Wilkens R. Expert Consensus on Optimal Acquisition and Development of the International Bowel Ultrasound Segmental Activity Score (IBUS-SAS): A Reliability and Inter-rater Variability Study on Intestinal Ultrasonography in Crohn’s Disease. J Crohns Colitis. 2021 Apr 6;15(4):609-616.
2. Dragoni G, Gottin M, Innocenti T, Lynch EN, Bagnoli S, Macrì G, Bonanomi AG, Orlandini B, Rogai F, Milani S, Galli A, Milla M, Biagini MR. Correlation of Ultrasound Scores with Endoscopic Activity in Crohn’s Disease: A Prospective Exploratory Study. J Crohns Colitis. 2023;17(9):1387–1394.
Bowel Ultrasound Score
Crohn’s Disease
Enter value in mm
BUSS Score: 0.00
Ultrasound Remission
1. Allocca M, Dell’Avalle C, Craviotto V, Furfaro F, Zilli A, D’Amico F, Bonovas S, Peyrin-Biroulet L, Fiorino G, Danese S. Predictive value of Bowel Ultrasound in Crohn’s Disease: A 12-Month Prospective Study. Clin Gastroenterol Hepatol. 2022 Apr;20(4):e723-e740.
2. Dragoni G, Gottin M, Innocenti T, Lynch EN, Bagnoli S, Macrì G, Bonanomi AG, Orlandini B, Rogai F, Milani S, Galli A, Milla M, Biagini MR. Correlation of Ultrasound Scores with Endoscopic Activity in Crohn’s Disease: A Prospective Exploratory Study. J Crohns Colitis. 2023;17(9):1387–1394.
Simple Ultrasound Score – CD
Crohn’s disease
Enter value in mm
SUS-CD Score: 0.00
Ultrasound Remission
1. Sævik F, Eriksen R, Eide GE, Gilja OH, Nylund K. Development and validation of a simple ultrasound activity score for Crohn’s disease. J Crohns Colitis. 2021;15:115–24.
2. Dragoni G, Gottin M, Innocenti T, Lynch EN, Bagnoli S, Macrì G, Bonanomi AG, Orlandini B, Rogai F, Milani S, Galli A, Milla M, Biagini MR. Correlation of Ultrasound Scores with Endoscopic Activity in Crohn’s Disease: A Prospective Exploratory Study. J Crohns Colitis. 2023;17(9):1387–1394.
Simple-US
Crohn’s Disease
Enter value in mm
Simple-US Score: 0.00
Ultrasound Remission
1. Ripollés T, Poza J, Suarez Ferrer C, Martínez-Pérez MJ, Martín-Algíbez A, de Las Heras Paez B. Evaluation of Crohn’s disease activity: development of an ultrasound score in a multicenter study. Inflamm Bowel Dis. 2021;27:145–54.
2. Dragoni G, Gottin M, Innocenti T, Lynch EN, Bagnoli S, Macrì G, Bonanomi AG, Orlandini B, Rogai F, Milani S, Galli A, Milla M, Biagini MR. Correlation of Ultrasound Scores with Endoscopic Activity in Crohn’s Disease: A Prospective Exploratory Study. J Crohns Colitis. 2023;17(9):1387–1394.
Milan Ultrasound Criteria Score
Ulcerative Colitis
Enter value in mm
Select BWF (0 = Absent, 1 = Present)
MUC Score: 0.00
Ultrasound Remission
1. Allocca M, Fiorino G, Bonovas S, Furfaro F, Gilardi D, Argollo M, Magnoni P, Peyrin-Biroulet L, Danese S. Accuracy of Humanitas Ultrasound Criteria in Assessing Disease Activity and Severity in Ulcerative Colitis: A Prospective Study. J Crohns Colitis. 2018 Nov 28;12(12):1385-1391.
2. Allocca M, Dell’Avalle C, Craviotto V, Furfaro F, Zilli A, D’Amico F, Bonovas S, Peyrin-Biroulet L, Fiorino G, Danese S. Predictive value of Milan ultrasound criteria in ulcerative colitis: A prospective observational cohort study. United European Gastroenterol J. 2022 Mar;10(2):190-197.
3. Allocca M, Filippi E, Costantino A, Bonovas S, Fiorino G, Furfaro F, Peyrin-Biroulet L, Fraquelli M, Caprioli F, Danese S. Milan ultrasound criteria are accurate in assessing disease activity in ulcerative colitis: external validation. United European Gastroenterol J. 2021 May;9(4):438-442.
All-in-One Ultrasound Score Calculator
Enter value in mm
0: Absent, 1: Uncertain, 2: Present
Select vascular pattern
0: Normal, 1: Uncertain, 2: Focal, 3: Extensive
Tap a score to open details
IBUS-SAS
0.00
BUSS
0.00
SUS-CD
0.00
Simple-US
0.00
MUC Score
0.00
App developed through ChatGPT o3-mini-high and above by:
Francesco Maria Stalla, Doctor of Medicine
Consultant at Mauriziano Hospital, Torino (Italy), first release April 7 2025
Credits
Creative Commons
Version: v.1.0.0+3
References
  1. Novak KL, Nylund K, Maaser C, Petersen F, Kucharzik T, Lu C, Allocca M, Maconi G, de Voogd F, Christensen B, Vaughan R, Palmela C, Carter D, Wilkens R. Expert Consensus on Optimal Acquisition and Development of the International Bowel Ultrasound Segmental Activity Score (IBUS-SAS): A Reliability and Inter-rater Variability Study on Intestinal Ultrasonography in Crohn’s Disease. J Crohns Colitis. 2021 Apr 6;15(4):609-616.
  2. Allocca M, Dell’Avalle C, Craviotto V, Furfaro F, Zilli A, D’Amico F, Bonovas S, Peyrin-Biroulet L, Fiorino G, Danese S. Predictive value of Bowel Ultrasound in Crohn’s Disease: A 12-Month Prospective Study. Clin Gastroenterol Hepatol. 2022 Apr;20(4):e723-e740.
  3. Sævik F, Eriksen R, Eide GE, Gilja OH, Nylund K. Development and validation of a simple ultrasound activity score for Crohn’s disease. J Crohns Colitis. 2021;15:115–24.
  4. Ripollés T, Poza J, Suarez Ferrer C, Martínez-Pérez MJ, Martín-Algíbez A, de Las Heras Paez B. Evaluation of Crohn’s disease activity: development of an ultrasound score in a multicenter study. Inflamm Bowel Dis. 2021;27:145–54.
  5. Allocca M, Fiorino G, Bonovas S, Furfaro F, Gilardi D, Argollo M, Magnoni P, Peyrin-Biroulet L, Danese S. Accuracy of Humanitas Ultrasound Criteria in Assessing Disease Activity and Severity in Ulcerative Colitis: A Prospective Study. J Crohns Colitis. 2018 Nov 28;12(12):1385-1391.
  6. Allocca M, Dell’Avalle C, Craviotto V, Furfaro F, Zilli A, D’Amico F, Bonovas S, Peyrin-Biroulet L, Fiorino G, Danese S. Predictive value of Milan ultrasound criteria in ulcerative colitis: A prospective observational cohort study. United European Gastroenterol J. 2022 Mar;10(2):190-197.
  7. Allocca M, Filippi E, Costantino A, Bonovas S, Fiorino G, Furfaro F, Peyrin-Biroulet L, Fraquelli M, Caprioli F, Danese S. Milan ultrasound criteria are accurate in assessing disease activity in ulcerative colitis: external validation. United European Gastroenterol J. 2021 May;9(4):438-442.
  8. Dragoni G, Gottin M, Innocenti T, Lynch EN, Bagnoli S, Macrì G, Bonanomi AG, Orlandini B, Rogai F, Milani S, Galli A, Milla M, Biagini MR. Correlation of Ultrasound Scores with Endoscopic Activity in Crohn’s Disease: A Prospective Exploratory Study. J Crohns Colitis. 2023;17(9):1387–1394.
Terms of liability and Privacy
Terms of Liability The text, information, and other data accessible through this app are provided solely for information and support to the physician. They are used to assign scores to objectify the intestinal ultrasound assessment in chronic inflammatory bowel diseases (IBD). All information provided is published as it appears in the published literature. The calculators presented here are intended to support, not replace, the relationship between a patient and his reference doctor and should not be considered a diagnosis under any circumstances. The texts and calculators provided are for informational purposes only and are aimed at medical personnel. The developer cannot be held responsible for any clinical decisions or diagnoses made by end users. Privacy This app does not collect sensitive data or personal information. All calculations are performed locally on your device without transmitting any data to external servers.