Elysium Technologies Private Limited
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A b s t r a c t
Bio - Medical
2010 - 2011
01 3D CORONARY STRUCTURE TRACKING ALGORITHM ITH REGULARIZATION AND MULTIPLE HYPOTHESES IN MRI
This paper presents an improved version of a tracking algorithm for the extraction of the 3D central axis of tubular-like object in a low-contrast
and multi-object environment. This improvement concerns two aspects: (1) an efficient Infinite Impulse Response (IIR) filtering of the
successive tracking directions is used to introduce regularization and (2) a multiple hypotheses testing procedure allows an almost exhaustive
selection of the best centerline location by building different paths according to the applied parameters. A score is then computed for each
hypothesis that helps in the selection of the best path along the tree. The improved tracking algorithm is tested on Magnetic Resonance
Angiography (MRA) datasets to extract the coronary artery centerlines
02 A Magnetic Retrieval System for Stents in the Pancreaticobiliary Tree
Clinical endoscopic intervention of the pancreaticobiliary tree [endoscopic retrograde cholangiopancreatography (ERCP)] often concludes
with the insertion of a temporary plastic stent to reduce the risk of post-ERCP complications by promoting continued flow of bile and
pancreatic fluids. This stent is later removed once the patient has fully recovered, but today this necessitates a second endoscopic
intervention. The final goal of this work is to obviate the second intervention. This is to be achieved by adding a magnetic ring to the stent
such that the stent is removed using a hand-held magnet, held in a suitable position e