Bolus tracking was performed, and peristalsis was minimized by intravenously administered spasmolytics.
2
Before imaging, spasmolytics were administered intravenously, and a water-gadolinium chelate mixture was administered rectally for distention of the colon.
3
Along with it, came a growing interest in agents that could control uterine contractility beyond the earlier classical approaches of hormones and gastrointestinal spasmolytics.