Guidelines:

EFSUMB guidelines:

• https://www.efsumb.org

ECCO-ESGAR guidelines:

• https://academic.oup.com/ecco-jcc/article/13/2/144/5078195
• https://academic.oup.com/ecco-jcc/article/13/3/273/5078200

Review articles:

• Systematic review: the use of ultrasonography, computed tomography and magnetic resonance imaging for the diagnosis, assessment of activity and abdominal complications of Crohn's disease. Aliment Pharmacol Ther 2011. Link: https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1365-2036.2011.04710.x
• Bowel Ultrasonography in Inflammatory Bowel Disease. Dig Dis 2015. Link:https://www.karger.com/Article/Abstract/437035
• Bowel Ultrasonography in the Management of Crohn's Disease. A Review with Recommendations of an International Panel of Experts. Inflamm Bowel Dis 2016. Link: https://academic.oup.com/ibdjournal/article/22/5/1168/4561844
• How to perform gastrointestinal ultrasound: Anatomy and normal findings. World J Gastroenterol 2017. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658311/
• The use of ultrasound in inflammatory bowel disease. Ann Gastroenterol 2017. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5320025/
• Intestinal ultrasound and management of small bowel Crohn’s disease. Therap Adv Gastroenterol 2018. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5987904/
• Gastrointestinal ultrasound in inflammatory bowel disease: an underused resource with potential paradigm-changing application. Gut 2018. Link: https://gut.bmj.com/content/67/5/973.long

Original articles:

• Clinic-based Point of Care Transabdominal Ultrasound for Monitoring Crohn's Disease: Impact on Clinical Decision Making. J Crohns Colitis 2015. Link: https://academic.oup.com/ecco-jcc/article/9/9/795/346683
• A Simple Ultrasound Score for the Accurate Detection of Inflammatory Activity in Crohn's Disease. Inflamm Bowel Dis 2017. Link: https://academic.oup.com/ibdjournal/article/23/11/2001/4791628
• TRUST study: Use of Intestinal Ultrasound to Monitor Crohn's Disease Activity. Clin Gastroenterol Hepatol 2017. Link: https://pubmed.ncbi.nlm.nih.gov/27856365/
• Real-time Interobserver Agreement in Bowel Ultrasonography for Diagnostic Assessment in Patients With Crohn's Disease: An International Multicenter Study. Inflamm Bowel Dis 2018. Link: https://academic.oup.com/ibdjournal/article/24/9/2001/4989895
• Diagnostic accuracy of magnetic resonance enterography and small bowel ultrasound for the extent and activity of newly diagnosed and relapsed Crohn's disease (METRIC): a multicentre trial. Lancet Gastroenterol Hepatol 2018. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278907/
• IBUS comment to the METRIC study - Link: https://www.thelancet.com/journals/langas/article/PIIS2468-1253(18)30388-1/fulltext
• Accuracy of Humanitas Ultrasound Criteria in Assessing Disease Activity and Severity in Ulcerative Colitis: A Prospective Study. J Crohns Colitis 2018. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6260119/
• Development and Validation of a Simple Ultrasound Activity Score for Crohn’s Disease. J Crohns Colitis 2020. Link: https://academic.oup.com/ecco-jcc/advance-article/doi/10.1093/ecco-jcc/jjaa112/5854303
• 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 2020. Link:https://academic.oup.com/ecco-jcc/advance-article-abstract/doi/10.1093/ecco-jcc/jjaa216/5938527?redirectedFrom=fulltext
• Intestinal ultrasound for monitoring therapeutic response in patients with ulcerative colitis: results from the TRUST&UC study. Gut 2020. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7456734/
• Systematic review: clinical utility of gastrointestinal ultrasound in the diagnosis, assessment and management of patients with ulcerative colitis. Journal of Crohn's and Colitis 2020. Link: https://academic.oup.com/ecco-jcc/article-abstract/14/4/465/5575710?redirectedFrom=fulltext
• A reliability study-strong inter-observer agreement of an expert panel for intestinal ultrasound in ulcerative colitis. Journal of Crohn's and Colitis 2021. Link: https://academic.oup.com/ecco-jcc/advance-article/doi/10.1093/ecco-jcc/jjaa267/6073674
• Standardisation of intestinal ultrasound scoring in clinical trials for luminal Crohn’s disease. Alimentary Pharmacology & Therapeutics 2021. Link: https://pubmed.ncbi.nlm.nih.gov/33641221/
• Systematic Review: Gastrointestinal Ultrasound Scoring Indices for Inflammatory Bowel Disease. J Crohns Colitis 2021. Link: https://academic.oup.com/ecco-jcc/advance-article-abstract/doi/10.1093/ecco-jcc/jjaa129/5866421?redirectedFrom=fulltext