Role of Intestinal Ultrasound in the Evaluation of Postsurgical Recurrence in Crohn's Disease: Correlation with Endoscopic Findings

Abstract

Introduction: Endoscopy remains the exam of choice in the evaluation of activity in Crohn's disease (CD) after surgery (ACD-AS). However, intestinal ultrasound (IUS) may represent a noninvasive alternative. The objective of this study is to determine the diagnostic accuracy of this modality compared to endoscopy. Material and Methods: This is a cross-sectional study, comprising a period of 14 months, carried out in patients with established CD and ileocecal resection due to the disease. IUS (HI-VISION Avius®, Tokyo, Japan) was performed with linear probe B-mode/Doppler prior to ileocolonoscopy. IUS and ileocolonoscopy were performed on the same day by 2 specialists in Gastroenterology dedicated to ultrasound and inflammatory bowel disease, in a double-blind mode. Collected demographic and clinical data (Harvey-Bradshaw Index [HBI]; remission ≤4), serological/fecal inflammatory parameters (leukocytes [4-10 × 10 cells/L], C-reactive protein [≤0.5 mg/dL], and fecal calprotectin [<50 mg/kg]), endoscopy (Rutgeerts score: remission 3 mm and/or Limberg score >1) was abnormal in 61.5% (n = 24) of the cases. Endoscopic remission (Rutgeerts score