Student assignment:
Measuring 3-D stentgraft dynamics from stereo fluoroscopic images
Bart Kaptein1,3, Edward Valstar1, Olivier Koning2
1Department of Orthopaedics, 2Department of Vascular Surgery, 3Department of Radiology,Leiden University Medical Center
Introduction:
Endovascular repair (EVAR) of an abdominal aortic aneurysm (AAA) is a widely used therapeutic alternative to open repair. A known problem with this technique is that the stentgraft can fail due to device defects caused by the continuous and significant forces of pulsatile blood flow. For the development and evaluation of new and current stentgrafts, it is of significant interest to understand aorta and stentgraft dynamics in vivo.
With the development of digital bi-plane fluoroscopic imaging systems, accurate measurement of stentgraft motion in three dimensions may become possible using the RSA technique. Recently, we validated this approach for its feasibility and accuracy to measure 3-D dynamic movement of stentgrafts.
At this moment, we are starting up the first experiments involving patients.
Goal:
Development of image processing techniques that allow for fully automated assessment of stentgraft dynamics from stereo fluoroscopic images.
For more information contact:
Bart Kaptein (071 5264542) B.L.Kaptein@lumc.nl
