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[Measurement of colon transit time]
N E Schindlbeck1, A G Klauser, S A Müller-Lissner
1Abteilung für Gastroenterologie, Medizinische Klinik, Klinikum Innenstadt der Universität München.
Summary
Radio-opaque pellets offer a simple, cost-effective method for measuring whole gut and segmental colonic transit times. This technique involves swallowing pellets over six days, followed by an abdominal X-ray for analysis.
Area of Science:
- Gastroenterology
- Diagnostic Imaging
- Colorectal Physiology
Context:
- Accurate measurement of colonic transit time is crucial for diagnosing and managing various gastrointestinal disorders.
- Existing methods for measuring colonic transit time, such as scintigraphy, can be complex, time-consuming, and require specialized equipment.
- Selective measurement of colonic transit time often necessitates invasive intubation techniques.
Purpose:
- To present a straightforward, non-invasive, and cost-effective method for assessing whole gut and segmental colonic transit times using radio-opaque pellets.
- To establish a practical protocol for utilizing radio-opaque markers for routine clinical evaluation of colonic transit.
Summary:
- A recommended procedure involves patients orally ingesting 20 radio-opaque pellets daily for six consecutive days.
- On the seventh day, a single abdominal X-ray is performed to visualize the distribution of the retained pellets.
- Segmental and total colonic transit times are subsequently calculated based on the number and location of the radio-opaque pellets.
Impact:
- This method provides a simpler, more accessible alternative to scintigraphy for evaluating colonic transit.
- The use of radio-opaque pellets offers a cost-effective and safe approach with no known side effects.
- Facilitates routine clinical assessment of colonic transit, aiding in the diagnosis and management of motility disorders.