4-DIMENSIONAL LEFT VENTRICULAR STRAIN ANALYSIS BY CARDIOVASCULAR MAGNETIC RESONANCE IMAGING: VALIDATION VERSUS 4D SPECKLE TRACKING ECHOCARDIOGRAPHY
| Autor: | James A. White, B. Heydari, Nowell M. Fine, Derek V. Exner, M.M. Attwood, Mariam Narous, Carmen P Lydell, Andrew G Howarth, Alessandro Satriano, Yoko Mikami |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
education.field_of_study Ejection fraction Strain (chemistry) medicine.diagnostic_test Cardiac cycle business.industry medicine.medical_treatment Population Magnetic resonance imaging Radionuclide ventriculography Speckle tracking echocardiography Implantable cardioverter-defibrillator Internal medicine Cardiology medicine Cardiology and Cardiovascular Medicine business education |
| Zdroj: | Canadian Journal of Cardiology. 31:S70-S71 |
| ISSN: | 0828-282X |
| Popis: | s S71 axis-dependent directions (circumferential, radial and longitudinal). 3D STE was analyzed using proprietary software (TomTec, Germany) and global circumferential, radial and longitudinal strains calculated for each phase of the cardiac cycle. RESULTS: The mean age was 26.0 15.5 (35% female). The mean LV ejection fraction by CMR was 65 10% (range: 42-86%). LV 4D strain analysis was feasible in all subjects. The mean LV peak principal, circumferential, radial and longitudinal strains by CMR versus STE were; -23.0 3.64% versus -31.6 6.0%, -18.3 3.3% versus -20.9 5.9%, 43.7 13.3% versus 66.8 24.4% and -15.1 2.8% versus -16.2 3.5%, respectively. Time-resolved global strain values from 4D CMR showed strong correlations to STE for each corresponding strain metric: r1⁄40.84 (p |
| Databáze: | OpenAIRE |
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