Accuracy of Trans-abdominal Ultrasound in Evaluating Bowel Preparation Adequacy Before Colonoscopy

Adequate preparation of the large bowel is required for a successful colonoscopy. It has been reported that poor preparation exists in 25% of examinations, which may lengthen overall procedure time, lower adenoma detection rate, and lead to earlier repeated colonoscopy. Evaluating the large intestine preparation by transabdominal ultrasonography can be a helpful way to predict the quality of the colonoscopy before initiating the process and therefore prevent performing the procedure in case of inadequate preparation. Estimating the colon preparation using an easy, fast and low cost way as transabdominal ultrasound before performing the colonoscopy would help the physician determine the next step. In case of poor preparation, colonoscopy can be postponed and the patient can be saved from repeated colonoscopy. The aim of this is to determine the accuracy of transabdominal ultrasonography in evaluating bowel preparation adequacy before performing colonoscopy.