Statistical modeling of the arterial vascular tree

Beitrag bei einer Tagung


Details zur Publikation

Autorinnen und Autoren: Beck T, Godenschwager C, Bauer M, Bernhardt D, Dillmann R
Titel Sammelwerk: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Verlagsort: Lake Buena Vista, Florida
Jahr der Veröffentlichung: 2011
Band: 7962
Tagungsband: Medical Imaging 2011: Image Processing
Seitenbereich: 796249-796249-6
ISBN: 9780819485045
ISSN: 1605-7422


Abstract


Automatic examination of medical images becomes increasingly important due to the rising amount of data. Therefore automated methods are required which combine anatomical knowledge and robust segmentation to examine the structure of interest. We propose a statistical model of the vascular tree based on vascular landmarks and unbranched vessel sections. An undirected graph provides anatomical topology, semantics, existing landmarks and attached vessel sections. The atlas was built using semi-automatically generated geometric models of various body regions ranging from carotid arteries to the lower legs. Geometric models contain vessel centerlines as well as orthogonal cross-sections in equidistant intervals with the vessel contour having the form of a polygon path. The geometric vascular model is supplemented by anatomical landmarks which are not necessarily related to the vascular system. These anatomical landmarks define point correspondences which are used for registration with a Thin-Plate-Spline interpolation. After the registration process, the models were merged to form the statistical model which can be mapped to unseen images based on a subset of anatomical landmarks. This approach provides probability distributions for the location of landmarks, vessel-specific geometric properties including shape, expected radii and branching points and vascular topology. The applications of this statistical model include model-based extraction of the vascular tree which greatly benefits from vessel-specific geometry description and variation ranges. Furthermore, the statistical model can be applied as a basis for computer aided diagnosis systems as indicator for pathologically deformed vessels and the interaction with the geometric model is significantly more user friendly for physicians through anatomical names. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Godenschwager, Christian
Lehrstuhl für Informatik 10 (Systemsimulation)


Einrichtungen weiterer Autorinnen und Autoren

Karlsruhe Institute of Technology (KIT)
Siemens AG, Healthcare Sector


Zitierweisen

APA:
Beck, T., Godenschwager, C., Bauer, M., Bernhardt, D., & Dillmann, R. (2011). Statistical modeling of the arterial vascular tree. In Medical Imaging 2011: Image Processing (pp. 796249-796249-6). Lake Buena Vista, FL, US: Lake Buena Vista, Florida.

MLA:
Beck, Thomas, et al. "Statistical modeling of the arterial vascular tree." Proceedings of the Medical Imaging 2011: Image Processing, Lake Buena Vista, FL Lake Buena Vista, Florida, 2011. 796249-796249-6.

BibTeX: 

Zuletzt aktualisiert 2018-01-12 um 13:53