Computer analysis of human esophageal peristalsis and lower esophageal sphincter pressure
- 1 November 1986
- journal article
- research article
- Published by Springer Nature in Digestive Diseases and Sciences
- Vol. 31 (11), 1211-1216
- https://doi.org/10.1007/bf01296521
Abstract
A computer program has been written to directly read and analyze esophageal manometric tracings on-line using low-cost off-the-shelf microcomputer hardware. The system consists of an Apple IIe microcomputer and an Interactive Microwave Inc. ADALAB Data Acquisition System with an AI13 fast A/D Multiplexer. The primary program is in BASIC with ASSEMBLY language subroutines for data collection. Data are collected through the voltage output of a Hewlett-Packard recorder at 30 points per second on four channels for lower esophageal sphincter pressures (LESP) and three channels for peristaltic waves. Computer-determined values for LESP and wave parameters showed excellent correlation with mean values as read by five individuals experienced in esophageal manometry.Keywords
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