Abstract
4.4 years, surgical recurrence was observed in 10 cases (9%). US recurrence occurred in 77 cases (75%) after 1.3 years (95%CI 1.1-1.6) and was associated to clinical recurrence (p=0.0004). Median bowel wall thickness was 4.5 mm (95%CI 4.1-5). The best cut-off to predict clinical recurrence was >4.6 mm (AUC 0.655, sensitivity 59%, specificity 63%). US characteristics of the population are listed in the Table. Clinical recurrence was associated to increased wall thickness (p=0.0284), mesenteric hypertrophy (p=0.0461), PowerDoppler signal (p=0.0284), but not to echopattern (p=0.228), presence of stenoses (p=0.9719), fistulae (p=0.4928), abscesses (p=0.6371), enlarged lymphnodes (p=0.2155) or free fluids (p=0.6891). At logistic regression the only US characteristic (p=0.01) associated to clinical recurrence was bowel wall thickness (p=0.0178, OR=2.66, 95%CI 1.18-5.97).
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