Feasibility and clinical utility of 3D echocardiography in routine practice

Hare, J., Jenkins, C., Nakatani, S., Ogawa, A. and Marwick, T. H. (2007). Feasibility and clinical utility of 3D echocardiography in routine practice. In: Abstracts for the Cardiac Society of Australia and New Zealand Annual Scientific Meeting and the International Society for Heart Research, Australasian Section, Annual Scientific Meeting. Cardiac Society of Australia and New Zealand Annual Scientific Meeting and the International Society for Heart Research, Australasian Section, Annual Scientific Meeting, Christchurch, New Zealand, (S41-S41). 9-12 August 2007. doi:10.1016/j.hlc.2007.06.105


Author Hare, J.
Jenkins, C.
Nakatani, S.
Ogawa, A.
Marwick, T. H.
Title of paper Feasibility and clinical utility of 3D echocardiography in routine practice
Conference name Cardiac Society of Australia and New Zealand Annual Scientific Meeting and the International Society for Heart Research, Australasian Section, Annual Scientific Meeting
Conference location Christchurch, New Zealand
Conference dates 9-12 August 2007
Proceedings title Abstracts for the Cardiac Society of Australia and New Zealand Annual Scientific Meeting and the International Society for Heart Research, Australasian Section, Annual Scientific Meeting   Check publisher's open access policy
Journal name Heart, Lung and Circulation   Check publisher's open access policy
Place of Publication Carlton South, Vic,, Australia
Publisher Elsevier
Publication Year 2007
Sub-type Published abstract
DOI 10.1016/j.hlc.2007.06.105
ISSN 1444-2892
1443-9506
Volume 16
Issue Supp. 2
Start page S41
End page S41
Total pages 1
Collection year 2008
Language eng
Formatted Abstract/Summary
Background
Research studies have shown 3D echocardiography (3DE) to be a feasible and more accurate method of assessing LV volumes and ejection fraction when compared to conventional 2D echocardiography (2DE). However, there is limited information regarding the feasibility and incremental value of 3DE in clinical practice.

Methods
Unselected patients referred to two hospital-based echo laboratories underwent 2DE and 3DE with measurement of acquisition and analysis time. Feasibility was defined by ability to measure LV parameters. Potential of 3DE to alter clinical decisions based on 2DE was evaluated by the ability to identify four clinically relevant measurement thresholds: (1) LVEF < 40% (indication for heart failure treatment); (2) LVEF < 35% (indication for ICD); (3) LV end-systolic volume (LVESV) >30 ml/m2 (prognosis post-MI); and (4) LVESV > 50 ml/m2 (indication for surgery in regurgitant valve disease).

Results
Of 168 patients, 3DE was feasible in 150 (89.3%) with 2D and 3D data available in 148 patients (88.1%). Time for 3D sample acquisition was 5.3 ± 1.9 min. The proportion of patients in which 3DE changed categorisation above or below a threshold as defined by 2DE was 5.4% (8/148) for LVEF < 40%, 2.7% (4/148) for LVEF < 35%, 11.5% (17/148) for LVESV > 30 ml/m2, and 2.7% (4/148) for LVESVi > 50 ml/m2, with 82% of impact for EF in range 30–45% and 75% for LVESV in 20–40 ml/m2.

Conclusion
Measurement of LV volumes and ejection fraction by 3DE is clinically feasible and has the potential to significantly alter clinical decision making.
Copyright © 2007 Published by Elsevier Ltd. on behalf of The Australasian Society of Cardiac and Thoracic Surgeons and The Cardiac Society of Australia and New Zealand

Subjects 321003 Cardiology (incl. Cardiovascular Diseases)
730106 Cardiovascular system and diseases
EX
1102 Cardiovascular Medicine and Haematology
Keyword Cardiac & Cardiovascular Systems
Echocardiography
3D echocardiography (3DE)
Clinical decision making
Clinical practice
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Abstract # 100

 
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Created: Mon, 18 Feb 2008, 16:28:48 EST