... circularity, the perimeter, the area, and their ratio, as index of complexity.Statistical analysisData were expressed as mean ± standard deviation (SD) ormedian and range. A comparison of the morphometricdata ... 5Cardiothoracic Department, Institute of Cardiovascular Medicine, Center of Clinical Physiology and Hypertension, Laboratory of Clinical Informatics and Cardiovascular Imaging, University of Milan, ItalyEmail: ... Mac G4, 1.25 GHz, 512 MB RAM, Apple, Cuper-tino, CA) in TIFF format. Stored images were analyzed in the Laboratory of Clinical Informatics and CardiovascularImaging, University of Milan by a...