NDLI: Adaptive attenuation correction in contrast echo

Content Provider	IEEE Xplore Digital Library
Author	Zwirn, G. Beeri, R. Gilon, D. Akselrod, S.
Copyright Year	2005
Description	Author affiliation: Tel Aviv Univ. (Zwirn, G.)
Abstract	Contrast echocardiography, as a tool for quantitative evaluation of left ventricular myocardial perfusion, has been the subject of massive research in the last few years. Nevertheless, this method is not in wide clinical use. Standard procedures derive the regional blood flow from the time-dependency of the echocardiographic videointensity within the myocardium. Thus, the data acquisition protocol tends to be lengthy (at least 5-6 sec). This is a serious problem, since the imaging plane must not change during the entire data acquisition. The present study presents a novel method, correcting for the signal attenuation in both the tissue and the contrast agent. It enables direct measurement of the local blood volume within the entire myocardium, based on a single heartbeat. Up until now, our technique has been tested on seven different patients, and shows high correlation between the automatically calculated perfusion levels and the segmental contractility
Starting Page	1
Ending Page	4
File Size	195298
Page Count	4
File Format	PDF
ISBN	0780393376
DOI	10.1109/CIC.2005.1588017
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-25
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Attenuation Myocardium Data acquisition Protocols Echocardiography Heart beat Image segmentation Hospitals Blood flow Volume measurement
Content Type	Text
Resource Type	Article

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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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