PT Chapter
AU Jaume Garcia
   Petia Radeva
   Francesc Carreras
TI Combining Spectral and Active Shape methods to Track Tagged MRI
BT Recent Advances in Artificial Intelligence Research and Development
PY 2004
BP 37
EP 44
DE MR; tagged MR; ASM; LV segmentation; motion estimation.
AB Tagged magnetic resonance is a very usefull and unique tool that provides a complete local and global knowledge of the left ventricle (LV) motion. In this article we introduce a method capable of tracking and segmenting the LV. Spectral methods are applied in order to obtain the so called HARP images which encode information about movement and are the base for LV point-tracking. For segmentation we use Active Shapes (ASM) that model LV shape variation in order to overcome possible local misplacements of the boundary. We finally show experiments on both synthetic and real data which appear to be very promising.
ER