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Diagnostic Performance of Handheld Echocardiography for the Assessment of Basic Cardiac Morphology and Function: A Validation Study in Routine Cardiac Patients.
- Source :
-
Echocardiography . Sep2012, Vol. 29 Issue 8, p887-894. 8p. - Publication Year :
- 2012
-
Abstract
- Aims: To investigate the intra- and interrater variability of expert users in the interpretation of handheld echocardiographic studies (HAND). Methods: We scanned 320 consecutive patients with both HAND and high-end (HIGH) scanners. Images were interpreted independently by two blinded level III echocardiographers. Readings from the HIGH scanner served as the gold standard. Segmental endocardial-border delineation was scored to describe image quality. Assessment of left ventricular (LV) dimensions and regional/global LV function, and grading of valve disease were compared. Results: We obtained correlations of r > 0.8 (P < 0.01) for intrarater variability for both expert readers when they analyzed HAND and HIGH images in relation to image quality, wall-motion abnormalities, and LV measurements. For intrarater variability of LVEF assessment, the correlations were at least moderate (r > 0.6, P < 0.01). Interrater variability for HIGH images was r = 0.9 (P < 0.01) for all parameters. Interrater variability for HAND images was less favorable for all parameters, but was at least moderate (r > 0.6, P < 0.01). All cases of pericardial effusion were detected. The agreement for the detection and grading of mitral and aortic regurgitation was at least moderate (κ > 0.6, P < 0.01). Detection of tricuspid regurgitation was less favorable, but only cases of mild regurgitation were missed. All cases of aortic stenosis were detected by both echocardiographers. Conclusions: In relation to the basic assessment of cardiac morphology and function, the interpretation by experienced echocardiographers of images obtained using handheld echocardiographic devices showed a moderate to very good correlation with standard echocardiography. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ECHOCARDIOGRAPHY
*SCANNING systems
*STATISTICAL correlation
*DOPPLER echocardiography
*CARDIAC patients
*LONGITUDINAL method
*RESEARCH methodology
*MITRAL valve insufficiency
*SCIENTIFIC observation
*SCALE analysis (Psychology)
*STATISTICAL hypothesis testing
*STATISTICS
*T-test (Statistics)
*DATA analysis
*POINT-of-care testing
*DISABILITIES
*INTER-observer reliability
*DATA analysis software
*DESCRIPTIVE statistics
*PERICARDIAL effusion
*EQUIPMENT & supplies
RESEARCH evaluation
Subjects
Details
- Language :
- English
- ISSN :
- 07422822
- Volume :
- 29
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Echocardiography
- Publication Type :
- Academic Journal
- Accession number :
- 79721900
- Full Text :
- https://doi.org/10.1111/j.1540-8175.2012.01728.x