Angle Images using Gabor Filters in Cardiac Tagged MRI

Tagged Magnetic Resonance Imaging (MRI) is a non-invasive technique used to examine cardiac deformation in vivo. An Angle Image is a representation of a Tagged MRI which recovers the relative position of the tissue respect to the distorted tags. Thus cardiac deformation can be estimated. This paper describes a new approach to generate Angle Images using a bank of Gabor filters in short axis cardiac Tagged MRI. Our method improves the Angle Images obtained by global techniques, like HARP, with a local frequency analysis. We propose to use the phase response of a combination of a Gabor filters bank, and use it to find a more precise deformation of the left ventricle. We demonstrate the accuracy of our method over HARP by several experimental results. Keywords. Tagged MRI, Gabor Filters, Angle Images, HARP

• Type: Conference
• Year: 2005
• Where: CCIA
• Authors: Joel Barajas, Jaume Garcia-Barnes, Francesc Carreras, Sandra Pujadas, Petia Radeva
• Keywords: Angle Images, Cardiac Deformation, CCIA 2005, Tagged MRI