The feasibility and accuracy of an automated adaptive algorithm (Heart Model) for the quantification of left heart chamber volumes and left ventricular ejection fraction has been reported earlier.  Acquisitions covering ventricles and atria were performed for analysis using the automated software (Heart Model, Philips Healthcare). 
Heart Model
In addition, acquisitions focused on the left ventricle were acquired for left ventricle manual 3D measurements (QLAB 10 3DQA, Philips Healthcare). 
QLAB 10 3DQA