Analysis of ambulatory colonic mobility records using a BBC (B) microcomputer

Abstract Colonic motility has been monitored using a pressure sensitive radiotelemetry capsule and portable receiving equipment in ambulatory subjects. Data from 24 hour recordings were stored on miniature cassette tape and subsequently replayed on a standard unit interfaced to a BBC B microcomputer. The computer program provides a semi-automated analysis and calculates a motility index allowing objective quantitative measurements to be made which can be rapidly and accurately presented. This method of analysis has been shown to be resistant to interobserver bias and in comparison with the analysis of analogue paper traces shown to be reproducible.