142 A new image processing (4DLVQ) for 3D echocardiographic LV volumes quantification
- Macron, Laurent
- Nahum, Julien
- Bensaid, Alexandre
- Mitchell-Heggs, Laurens
- Deal, Leslie
- Deux, Jean-François
- Guéret, Pascal
- Lim, Pascal
DOIAbstract
ObjectiveTo validate a new 3D semi automatic images processing (4DLVQ) that provides a fast and accurate assessment of LV volumes.MethodLV end-diastolic (LVEDV), end-systolic volumes (LVESV) and ejection fraction (LVEF) were computed using 4DLVQ software in 55 patients (57±17 years) and compared to MRI measurements.ResultsTime required for LV volumes analysis by 4DLVQ averaged 147s. A close correlation was observed between MRI and 4DLVQ for LVEDV(mean=169±83mL, r2=0.89, p<0.001), LVESV (mean=98±81mL, r2=0.95, p<0.001) and LVEF (mean=47±16%, r2=0.8, p<0.001). In addition, Bland-Altman analysis showed a good agreement for LVEDV (SD=29mL), LVESV (SD=24mL) and LVEF (SD=7%) between 4DLVQ and MRI. Inter-observer for LV volumes and LVEF were 10% a...
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