Document Detail


Cardiac conductive system excitation maps using intracardiac tissue Doppler imaging.
MedLine Citation:
PMID:  12775247     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To precisely visualize cardiac anatomic structures and simultaneously depict electro-mechanical events for the purpose of precise underblood intervention. METHODS: Intracardiac high-resolution tissue Doppler imaging was used to map real time myocardial contractions in response to electrical activation within the anatomic structure of the cardiac conductive system using a canine open-chest model. RESULTS: The detailed inner anatomic structure of the cardiac conductive system at different sites (i.e., sino-atrial, atrial wall, atrial-ventricular node and ventricular wall) with the inside onset and propagation of myocardial velocity and acceleration induced by electrical activation was clearly visualized and quantitatively evaluated. CONCLUSION: The simultaneous single modality visualization of the anatomy, function and electrical events of the cardiac conductive system will foster target pacing and precision ablation.
Authors:
Lixue Yin; Changqiong Zheng; Li Cai; Yi Zheng; Chunmei Li; Yan Deng; Yun Luo; Deyu Li; Shukui Zhao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chinese medical journal     Volume:  116     ISSN:  0366-6999     ISO Abbreviation:  Chin. Med. J.     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2003-05-30     Completed Date:  2003-06-12     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7513795     Medline TA:  Chin Med J (Engl)     Country:  China    
Other Details:
Languages:  eng     Pagination:  278-83     Citation Subset:  IM    
Affiliation:
Echocardiography Laboratory, Sichuan Provincial Hospital, Chengdu 610071, China. yinlixue@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Animals
Dogs
Echocardiography, Doppler*
Electrocardiography
Heart Conduction System / physiology*,  ultrasonography*
Myocardial Contraction*
Sinoatrial Node / physiology,  ultrasonography

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