David Joseph Vining MD, Presenter: Royalties, E-Z-EM, Inc, Lake Success, NY

Joseph Jen-Sho Chen MD, Abstract Co-Author: Nothing to Disclose

Objectives: 1. Learn how electronic carbon dioxide insufflators operate. 2. Understand how manometry may be used to judge optimal distention of the colon and signal the start of a virtual colonoscopy CT scan.

1. How electronic carbon dioxide insufflators work. 2. Physiologic pressure and volume recordings inside the colon. 3. When to start virtual colonoscopy CT scanning relative to optimal colonic distention.

The timing of the start of a virtual colonoscopy CT scan relative to optimal colonic distention is critical. Manometry (i.e., colonic pressure and gas volume monitoring) may be used to judge when a patient’s colon is adequately insufflated and signal the start of CT scanning.

Vining, D, Chen, J, Role of Manometry in Conducting Virtual Colonoscopy Exams.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5013866.html