Volume 66, Issue 12, Pages 1148-1158 (December 2011) Diagnostic and therapeutic impact of MR enterography in Crohn’s disease  R. Hafeez, S. Punwani, P. Boulos, S. Bloom, S. McCartney, S. Halligan, S.A. Taylor  Clinical Radiology  Volume 66, Issue 12, Pages 1148-1158 (December 2011) DOI: 10.1016/j.crad.2010.12.018 Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 1 Pre and post-MRE diagnostic confidence for the absence or presence of small bowel disease in patients clinically suspected to have small bowel disease, MRE reported as normal (group 1, n=15). In all patients, clinician confidence that there was small bowel disease present changed to confidence that the small bowel disease was absent following normal MRE. Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 2 Pre and post-MRE diagnostic confidence change for the presence of small bowel disease in patients clinically suspected to have small bowel disease with MRE reported as showing abnormal small bowel (group 2). There was a change in 15 (50%) of the group. Overall mean diagnostic confidence increased from 87% increased to 98% after MRE. Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 3 Median diagnostic confidence for all categories pre and post-MRE in patients clinically suspected to have small bowel disease, MRE reported as normal (group 1). DE, disease extent; LTI, limited terminal ileal disease; JE, jejunal disease; ST, stricturing disease; AD, active disease; CoD, colonic disease; EL, extraluminal disease. Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 4 Median diagnostic confidence for all categories pre and post-MRE in patients clinically suspected to have small bowel disease with MRE reported as showing abnormal small bowel (group 2). DE, disease extent; LTI, limited terminal ileal disease; JE, jejunal disease; ST, stricturing disease; AD, active disease; CoD, colonic disease; EL, extraluminal disease. Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 5 Median diagnostic confidence for extent of disease >30cm in patients clinically suspected to have small bowel disease with MRE reported as showing abnormal small bowel (goup 2). Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 6 Percentage of patients with a change in therapeutic strategy after MRE according to diagnostic group. Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Figure 7 Therapeutic strategy before and after MRE in (a) patients clinically suspected to have small bowel disease, MRE reported as normal (group 1, n=15); (b) patients clinically suspected to have small bowel disease with MRE reported as showing abnormal small bowel (group 2, n=30). Key: 1=patient is on no small bowel medication and none will be added; 2=patient is on no small bowel medication but will be started on some; 3=maintain current small bowel medication; 4=reduce dose of current small bowel medication; 5=Increase dose of current small bowel medication; 6=stop current small bowel medication; 7=change current small bowel medication to similar drug class (e.g., conventional or biological); 8=change current small bowel medication to different drug class (e.g., from conventional to biological); 9=refer for surgical therapy; 10=other (please state). Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions

Clinical Radiology 2011 66, 1148-1158DOI: (10.1016/j.crad.2010.12.018) Copyright © 2011 The Royal College of Radiologists Terms and Conditions