Comparison of Magnetic Resonance Imaging and Endoscopy in Distinguishing the Type and Severity of Inflammatory Bowel Disease

Magnetic resonance imaging for evaluation of disease activity in Crohn’s disease: a systematic review

“…Finally, seven papers [17,18,[28][29][30][31][32] fulfilled all inclusion criteria and were used for data extraction and data analysis (Appendix 1). There was no disagreement regarding inclusion between the two reviewers.…”

“…In the other four studies, both patients with CD and with ulcerative colitis were included [18,[28][29][30]. For our analyses we only used the data on CD.…”

“…However, different appraisals were used to determine pathological bowel wall enhancement; in the older studies percentages of contrast enhancement were used (post-and precontrast MRI), with higher ratios indicating more severe disease [28,29]. In other studies subjective enhancement was used to stage disease [17,18,[30][31][32].…”

“…Data were reported on a per-patient basis in five studies [28][29][30][31][32] and on a per-segment basis in two studies [17,18]. For the studies reporting segmental data, we grouped the available segmental data per patient to enable data analysis on a per-patient basis; only bowel segments that were inspected endoscopically or surgically were included, and the most severe segmental score was used for analysis.…”

“…For the studies reporting segmental data, we grouped the available segmental data per patient to enable data analysis on a per-patient basis; only bowel segments that were inspected endoscopically or surgically were included, and the most severe segmental score was used for analysis. In four studies distinction was made among remission, mild, moderate and severe disease [28,29,31,32]; in two studies only remission, mild and frank disease were distinguished [17,18]. In one study numerical scores from 0 to 4 were given with stages 1 and 2 representing mild disease and stages 3 and 4 representing frank disease [30].…”