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A comparison of visual and quantitative assessment of left ventricular ejection fraction by cardiac magnetic resonance
- Source :
- The International Journal of Cardiovascular Imaging
- Publication Year :
- 2010
-
Abstract
- To determine the accuracy of visual analysis of left ventricular (LV) function in comparison with the accepted quantitative gold standard method, Cardiac Magnetic Resonance (CMR). Cine CMR imaging was performed at 1.5 T on 44 patients with a range of ejection fractions (EF, 5-80%). Clinicians (n = 18) were asked to visually assess EF after sequentially being shown cine images of a four chamber (horizontal long axis; HLA), two chamber (vertical long axis; VLA) and a short axis stack (SAS) and results were compared to a commercially available analysis package. There were strong correlations between visual and quantitative assessment. However, the EF was underestimated in all categories (by 8.4% for HLA, 8.4% for HLA + VLA and 7.9% for HLA + VLA + SAS, P all < 0.01) and particularly underestimated in mild LV impairment (17.4%, P < 0.01), less so for moderate (4.9%) and not for severe impairment (1%). Assessing more than one view of the heart improved visual assessment of LV, EF, however, clinicians underestimated EF by 8.4% on average, with particular inaccuracy in those with mild dysfunction. Given the important clinical information provided by LV assessment, quantitative analysis is recommended for accurate assessment. © 2010 Springer Science+Business Media, B.V.
- Subjects :
- medicine.medical_specialty
Short axis
MILD DYSFUNCTION
Magnetic Resonance Imaging, Cine
Severity of Illness Index
Ventricular Function, Left
Ventricular Dysfunction, Left
Bias
Predictive Value of Tests
Internal medicine
Image Interpretation, Computer-Assisted
medicine
Quantitative assessment
Humans
Radiology, Nuclear Medicine and imaging
Cardiac imaging
Analysis of Variance
Ejection fraction
business.industry
Reproducibility of Results
Stroke Volume
Gold standard (test)
England
Cardiology
Horizontal Long Axis
Clinical Competence
Cardiology and Cardiovascular Medicine
business
Cardiac magnetic resonance
Editorial Comment
Subjects
Details
- ISSN :
- 18758312
- Volume :
- 27
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- The international journal of cardiovascular imaging
- Accession number :
- edsair.doi.dedup.....f60ce73fbb332d55e8fc93afb7338160