Document Detail


On-line computer processing of pressure data from cardiac catheterizations.
MedLine Citation:
PMID:  1269259     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A flexible program system for on-line analysis of pressure data from cardiac catheterizations is described. The programs are implemented on an IBM 1800 computer, equipped with remote oscilloscope/keyboard terminals. The current computer system can handle any combination of up to 4 pressure signals. During catheterization, measurement specifications (i.e. calibration levels or sites of pressure recordings) are entered via the keyboard immediately before each recording. As an option the whole expected measurement sequence may be stored on disk before the catheterization starts. This method will minimize the necessary interaction with the computer when the same catheterization procedure is used on several occasions. Changes from the predetermined scheme may, however, be undertaken before each recording to meet with unexpected events that may arise during the catheterization. After computer detection of calibration levels, the recorded signals are digitized during 20 seconds and analysed beat-by-beat. Calculated values are averaged and presented on the terminal oscilloscope in tabular and/or graphic form. The waveform analysis performed by the program system is validated in a statistical comparison between manually and automatically computed values.
Authors:
M E Nygårds; J Tranesjö; J H Atterhög; P Blomqvist; L G Ekelund; Wigertz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Computer programs in biomedicine     Volume:  5     ISSN:  0010-468X     ISO Abbreviation:  Comput Programs Biomed     Publication Date:  1976 Mar 
Date Detail:
Created Date:  1976-08-02     Completed Date:  1976-08-02     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0237013     Medline TA:  Comput Programs Biomed     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  272-82     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Computers / instrumentation*
Heart Catheterization*
Hemodynamics*
Humans
Online Systems*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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