| Photokymography: a noninvasive method of detecting ischemic segmental myocardial wall motion abnormalities. | |
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MedLine Citation:
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PMID: 425916 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The photokymograph is a new and simple noninvasive device for assessing epicardial segmental myocardial wall motion utilizing cardiac fluoroscopy and image intensification. The validity of this technique in detecting wall motion changes occurring with ischemia was assessed in seven closed chest dogs undergoing acute balloon occlusion of the left circumflex coronary artery. Acute occlusion resulted in a prompt change in the analog signal of the photokymogram, characterized first by a decreased systolic inward motion and late systolic outward movement that later became akinetic and dyskinetic. Systolic amplitude decreased 18 +/- 7 percent (mean +/- standard error of the mean) within 5 seconds of occlusion and progressed to systolic outward motion (- 106 +/- 24 percent) at 2 minutes. The time course and type of morphologic changes observed after occlusion were similar to those previously described using invasive methods. Furthermore, such changes preceded electrocardiographic S-T segment elevation. These data suggest that photokymography is a sensitive technique for noninvasive detection of acute ischemic segmental wall motion abnormalities and holds promise as a simple method of detecting ischemic heart disease in man. |
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Authors:
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M Pichler; G A Diamond; M Hirsch; R Vas; D Tzivoni; H J Swan; J S Forrester |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The American journal of cardiology Volume: 43 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1979 Apr |
Date Detail:
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Created Date: 1979-05-26 Completed Date: 1979-05-26 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 794-800 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arterial Occlusive Diseases / etiology Coronary Disease / diagnosis* Coronary Vessels / physiopathology Dogs Electrocardiography Electrokymography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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