Login | Users Online: 1921  
Home Print this page Email this page Small font sizeDefault font sizeIncrease font size   
Home | About us | Editorial board | Search | Ahead of print | Current Issue | Archives | Submit article | Instructions | Subscribe | Advertise | Contact us
 
TECHNOLOGY
Year : 2002  |  Volume : 3  |  Issue : 1  |  Page : 3

Technology-A: Tissue doppler imaging in coronary artery disease


Division of Cardiovascular Diseases and, Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA

Correspondence Address:
Steve R Ommen
Mayo Clinic, 200 First Street SW, Rochester, MN 55905
USA
Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

Tissue Doppler imaging (TDI) has rapidly evolved over the last decade as a sensitive clinical tool of measuring both global and regional myocardial velocities and their relationship to the cardiac cycle with high spatial and temporal resolution. Measurement of mitral annular velocities reflects global left ventricular LV function at rest or during stress echocardiography. Regional analysis of peak segmental systolic myocardial velocities during stress improves accuracy of novice readers, of interpreting basal segments, and concordance between observers. Moreover, it has higher sensitivity and comparable specificity to standard dobutamine stress echocardiography in detecting myocardial viability. Myocardial velocity gradient, being independent of cardiac translational movement, has also shown promise for detecting resting and induced ischemia and viable myocardium. Strain rate imaging (SRI), based on tissue Doppler technology, has clinical potential of quantitative assessment of regional contractility and function during stress echocardiography. Abnormal wall motion during isovolumic contraction and relaxation periods and their clinical implications of correlating myocardial viability has been discussed. Improved data acquisition and rapid post-processing of TDI will facilitate its incorporation into standard regional myocardial assessment.


[FULL TEXT] [PDF Not available]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed2912    
    Printed194    
    Emailed0    
    PDF Downloaded0    
    Comments [Add]    

Recommend this journal