Accuracy of imaging for predicting operative approach in Crohn's disease
British Journal of Surgery, 05/11/2012Malgras B et al.
Preoperative imaging using CTE or MRE is highly accurate for assessing Crohn's disease lesions before operation, allowing correct prediction of the operative approach.
Patients with Crohn's disease who were scheduled to undergo operation were evaluated before operation using computed tomography enteroclysis (CTE) and magnetic resonance enterography (MRE).
Preoperative imaging findings were correlated with intraoperative and pathological findings to estimate the capabilities of preoperative imaging in detecting lesions due to Crohn's disease.
The operative approach determined before surgery was compared with the procedure actually performed, which was based on intraoperative findings.
Fifty–two patients with Crohn's disease were studied; 26 were evaluated before surgery with CTE and 26 with MRE.
Eighty–nine lesions due to Crohn's disease were confirmed surgically (60 small bowel stenoses, 21 fistulas and 8 abscesses).
CTE confirmed the presence of 38 of 41 lesions (sensitivity 93 per cent) and MRE 48 of 48 lesions (sensitivity 100 per cent); a correct estimation of the disease with an exact prediction of the operative approach was obtained in 49 (94 per cent) of 52 patients.
Discrepant findings between preoperative imaging and operative findings were observed in three patients (6 per cent), who had CTE.
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