Document Detail

Real-time perfusion echocardiography during treadmill exercise and dobutamine stress testing.
MedLine Citation:
PMID:  19713202     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Real-time perfusion (RTP) echocardiographic imaging with a continuous infusion of microbubbles has improved the sensitivity of dobutamine stress echocardiography (DSE) in detecting coronary artery disease (CAD). The impact of RTP on treadmill exercise stress echocardiography (TESE) is unclear. Design Retrospective database review. SETTING/PATIENTS/INTERVENTIONS: RTP was utilised in 254 DSE and TESE patients being examined for the presence of significant CAD. A continuous infusion of 3% Definity (Lantheus Medical Imaging) was used for all studies, and contrast replenishment (MCR), plateau intensity (PMCE) and wall motion (WM) were examined for the detection of CAD. MAIN OUTCOME MEASURES: Sensitivity/specificity/accuracy to detect CAD. RESULTS: For DSE, the sensitivity of myocardial perfusion (MP) imaging with RTP was 85%, which was significantly higher than WM analysis (72%; p<0.05). The improvement in sensitivity with MP analysis during DSE was primarily the result of better detection of left anterior descending disease. MP sensitivity during TESE was significantly better than MP sensitivity during DSE (98% versus 85%; p<0.05), and WM sensitivity during TESE was better than WM sensitivity during DSE (89% versus 72%; p<0.05). The improvement in WM sensitivity during TESE was due to detection of subendocardial wall thickening abnormalities in 48% of the patients with induced subendocardial perfusion defects. CONCLUSION: Myocardial perfusion imaging with RTP improves the detection of CAD during both DSE and TESE. During TESE, the subendocardial perfusion defects improve WM sensitivity by delineating subendocardial WM abnormalities.
S Dodla; F Xie; M Smith; E O'Leary; T R Porter
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-26
Journal Detail:
Title:  Heart (British Cardiac Society)     Volume:  96     ISSN:  1468-201X     ISO Abbreviation:  Heart     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-05     Completed Date:  2010-03-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9602087     Medline TA:  Heart     Country:  England    
Other Details:
Languages:  eng     Pagination:  220-5     Citation Subset:  AIM; IM    
University of Nebraska Medical Center, 982265 Nebraska Medical Center, Omaha, NE 68198-2265, USA.
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MeSH Terms
Coronary Artery Disease / pathology,  physiopathology*,  ultrasonography
Coronary Circulation / physiology
Echocardiography, Stress
Exercise / physiology*
Exercise Test
Middle Aged
Observer Variation
Retrospective Studies

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