Computer Detection of Distortion in Arterial Pressure Signals

George Klee, Eugene Ackerman, Arnold Leonard

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


An application of the mathematical concept of curvature to the detection of distortion in arterial pressure signals is described. Curvature is defined and examples of digitally filtered pressure tracings show the relationship between curvature and the degree of damping. Even though curvature is also a function of the cardiovascular system producing the signal, the average sum of curvature can generally distinguish control signals from signals distorted by moderate amounts of blood or air in the catheter systems. Selected pressure signals with their associated sums of curvature show the properties and limitations of curvature for discriminating between the changes in the cardiovascular system and distortion of pressure signals.

Original languageEnglish (US)
Pages (from-to)73-75
Number of pages3
JournalIEEE Transactions on Biomedical Engineering
Issue number1
StatePublished - Jan 1974

ASJC Scopus subject areas

  • Biomedical Engineering


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