Computer-aided analysis of gastrointestinal pressure recordings. Comparison with manual scoring.

Abstract:

:The aim of the present study was to compare computer-based and visual/manual scoring of pressure recordings from the gastric antrum and duodenum. The computer system was based on three separate principles of recognition: moving average, tracking base line, and threshold filters. Computer scoring resulted in the detection of more contractions than visual/manual scoring, owing to inclusion of artefacts of duration and amplitude above the selected thresholds. Owing to its unreliability, visual/manual scoring led to inclusion of some contractions of below-borderline amplitude or duration. The median difference in the frequency of contractions was, however, 0 min-1. There was close agreement on amplitudes of contractions. As the differences between visual/manual analysis and computer-aided scoring by the present system are of an unimportant magnitude and as computer-based scoring is consistent, we conclude that computer-aided analysis is preferable to visual/manual analysis.

journal_name

Scand J Gastroenterol

authors

Melsen NC,Andersen MB,Kraglund K,Juhl B

doi

10.3109/00365529209011188

subject

Has Abstract

pub_date

1992-09-01 00:00:00

pages

805-11

issue

9

eissn

0036-5521

issn

1502-7708

journal_volume

27

pub_type

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