Johns Hopkins Manual for GI Endoscopic Nurses, Third Edition

Mouen Khashab, MD; Toshunia Robinson, MD; Anthony Kalloo, MD

Chapter 46: Assessing Gastrointestinal Motility (continued)

Victor Chedid, MD; Sameer Dhalla, MD, MHS; John Clarke, MD

GI motility can be assessed by several modalities such as fluoroscopy, magnetic resonance imaging, capsule technology, or manometry. In this chapter we will discuss two of the manometric modalities: antroduodenal manometry and the wireless motility capsule (WMC). Both quantify mechanical activity of the stomach and proximal small bowel. Antroduodenal manometry provides more detailed information regarding coordination of motility and response to intervention as the catheter has multiple sensors that detect pressure changes at multiple levels, while WMC has only one sensor. On the other hand…