"physical reduction under US guidance"
"hydrostatic-reduction under US guidance"
"There are several ways that reduction can be achieved radiologically:"
"With air-reduction, intraluminal pressures of 80-100 mmHg are typically used, with recommended upper limits not exceeding 120 mmHg 1. There are a variety of protocols that have been suggested with some advocating 3 attempts lasting 3 minutes. Success is achieved when there is reduction of the 'mass' and air or contrast refluxes into the terminal ileum."
"In air-reduction and water-reduction methods, a catheter is inserted into the rectum of the child, and under fluoroscopic guidance, air or water is instilled into the large bowel."