NDLI: Frequency Content of Intravascular and Intracardiac Pressures and Their Time Derivatives

Content Provider	IEEE Xplore Digital Library
Author	Krovetz, L. Jerome Goldbloom, Stephen D.
Copyright Year	1964
Abstract	The purpose of this study was to determine the frequency content of intravascular pressures and their time derivatives. Pressures, recorded using catheter-tip manometers in patients undergoing diagnostic cardiac catheterization, were amplified, filtered (100 Hz) to minimize aliasing errors, and then converted to digital format at 200 samples/sec. After examination of the waveform to exclude obvious artefact, it was analyzed using a Fourier transform and then resynthesized using a decreasing number of harmonics. Peak dp/dt of both the original and resynthesized waveforms was computed until marked differences were observed.
Sponsorship	IEEE Engineering in Medicine and Biology Society
Starting Page	498
Ending Page	501
Page Count	4
File Size	1524690
File Format	PDF
ISSN	00189294
Volume Number	BME-21
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1974-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power harmonic filters Harmonic analysis Catheters Arteries Hospitals Catheterization Frequency response Fluid dynamics Low pass filters Biomedical engineering
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Frequency Content of Intravascular and Intracardiac Pressures and Their Time Derivatives