| Assessment of propagation velocity by contrast echocardiography for standardization of color Doppler propagation velocity measurements. | |
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MedLine Citation:
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PMID: 15562265 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Color Doppler propagation velocity (Vp) (color-Vp) has not yet been standardized, although it should be able to specifically reflect the intraventricular movements of left ventricular (LV) inflow. Because contrast echocardiography can depict a specified flow, we used this modality to standardize measurements of color-Vp of LV inflow. METHODS: We performed contrast echocardiographic examinations in 100 patients (70 men, 30 women; age 53 +/- 12 years). Four types of color-Vp were measured: by the flow wave front method and by aliasing method using 3 aliasing velocity levels based on the peak velocity of early diastolic flow of transmitral flow. We also determined contrast echocardiographic Vp by M-mode imaging of LV inflow (contrast-Vp). RESULTS: Contrast-Vp and all 4 types of color-Vp could be compared in 86 patients. Contrast-Vp was significantly lower than color-Vp ( P < .01), except for color-Vp measured at the aliasing level 50% > peak velocity of early diastolic flow >/= 40% (color-Vp 40). A close relationship was observed between contrast-Vp and color-Vp 40 ( r = 0.801, P < .0001). Contrast-Vp and color-Vp 40 showed high ability to detect abnormal transmitral flow patterns according to receiver operating characteristics curves (area under curve for contrast-Vp, 0.94; for color-Vp 40, 0.90). CONCLUSIONS: Our results should be useful in standardization of color-Vp measurement to specifically reflect propagation of the fluid elements derived from LV inflow, with ability to distinguish LV filling abnormalities. |
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Authors:
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Yoshihiro Seo; Toshiyuki Ishimitsu; Tomoko Ishizu; Kenichi Obara; Naoko Moriyama; Satoru Kawano; Shigeyuki Watanabe; Iwao Yamaguchi |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article |
Journal Detail:
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Title: Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography Volume: 17 ISSN: 0894-7317 ISO Abbreviation: J Am Soc Echocardiogr Publication Date: 2004 Dec |
Date Detail:
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Created Date: 2004-11-24 Completed Date: 2005-03-15 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8801388 Medline TA: J Am Soc Echocardiogr Country: United States |
Other Details:
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Languages: eng Pagination: 1266-74 Citation Subset: IM |
Affiliation:
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Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensice Human Science, University of Tsukuba, Japan. seo@bf6.so-net.ne.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Blood Flow Velocity
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physiology* Contrast Media Coronary Circulation / physiology* Echocardiography, Doppler, Color* Female Heart Ventricles / ultrasonography* Humans Male Middle Aged Reproducibility of Results Stroke Volume / physiology* Ventricular Function, Left / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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