title: Update on Magnetic Resonance Imaging and Ultrasound Evaluation of Crohn's Disease.
abstract: Magnetic resonance enterography (MRE) and abdominal ultrasound are integral parts of multimodality assessments for patients with inflammatory bowel disease. Applications include assessing Crohn's disease (CD) extent and severity, differentiating CD from ulcerative colitis, detecting CD complications, evaluating response to therapy, and demonstrating postoperative recurrence. Magnetic resonance imaging protocols are being developed that may reduce or eliminate the need for intravenous contrast agents and better differentiate inflammatory from fibrotic strictures. MRE scoring systems have been created to objectively quantify disease activity and response to therapy. By utilizing advanced sonographic imaging techniques, including ultrasound contrast and Doppler assessments, the role of abdominal ultrasonography in the evaluation and management of CD continues to expand. Abdominal ultrasound may function as a low-cost, point-of care assessment tool, especially in CD restricted to the terminal ileum and ileocolic anastomosis.
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: Parakkal
authors.initials: P
authors.lastname: Deepak
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: Amy B
authors.initials: AB
authors.lastname: Kolbe
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: Jeff L
authors.initials: JL
authors.lastname: Fidler
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: Joel G
authors.initials: JG
authors.lastname: Fletcher
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: John M
authors.initials: JM
authors.lastname: Knudsen
authors.affiliation: Dr Deepak is an instructor in medicine and fellow and Dr Bruining is an associate professor of medicine and consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota. Dr Kolbe is an assistant professor of radiology and senior associate consultant, Dr Fidler and Dr Fletcher are professors of radiology and consultants, and Dr Knudsen is an assistant professor of radiology and consultant in the Department of Radiology at the Mayo Clinic College of Medicine.
authors.forename: David H
authors.initials: DH
authors.lastname: Bruining
keywords: Crohn’s disease; disease activity; magnetic resonance enterography; severity; ultrasound