A multiscale method to isolate cardiac structures in MRI

Magnetic resonance images may become a more important tool for the analysis of congenital heart disease once they permit a detailed view of 3D cardiac anatomy. They are not yet widely used in this sense mainly because the visualization depends on a previous segmentation step, which is mostly performed manually in a tedious and time consuming procedure. In this work the authors are addressing the segmentation of cardiac structures using a multiscale approach. Using the linear scale-space is possible to obtain representation from which important structures present in the image can be obtained as well as the scales where they become more evident. The authors implemented the scale space primal sketch to describe cardiac structures obtained from 3D MRI studies