Transabdominal intestinal ultrasound in inflammatory and tumor bowel diseases: new opportunities for oral contrasting with polyethylene glycol

The purpose of the work is to review current data on the possibilities of transabdominal ultrasound (US) in the diagnosis of intestinal diseases, as well as to present our own results on improving the echographic visualization of the wall of the small and large intestine. The following main options for transabdominal bowel US exist: 1) without any special preparation, and the study is best done on an fasting, but in emergency gastroenterology US may be possible after eating; 2) ente-roclysis; 3) small intestine contrast ultrasonography; 4) bowel hydrosonography; 5) US of the bowel that was emptied from the contents of the intestine after cleaning the colon with a solution of polyethylene glycol (PEG), taken orally (as for colonoscopy); 6) contrasting of the small and large intestine contrast ultrasonography with a PEG solution taken orally The best visualization of the intestinal wall was observed when using two-stage PEG application, when half dose of PEG was taken in the evening, then an US scan was performed in the morning, and next the second half of PEG was taken and an US scan was performed in 30-120 min depending on the zone of interest. The best visualization of the wall of the small intestine is observed 30-60 minutes after the morning intake of PEG. For the diagnosis of protruding tumors of the colon, it is proposed to carry out the above technique of US of the colon approximately 2 hours after taking the second dose of PEG. US should be the first-line imaging method in the medical care of patients with inflammatory bowel disease.

ultrasound, enteroclysis, small and large intestinal contrast ultrasonography, inflammatory bowel disease, colon tumor