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Tracking planar orientations of active MRI needles
Author(s) -
Sathyanarayana Shashank,
Aksit Pelin,
Arepally Aravind,
Karmarkar Parag V.,
Solaiyappan Meiyappan,
Atalar Ergin
Publication year - 2007
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.20960
Subject(s) - orientation (vector space) , computer vision , tracking (education) , computer science , artificial intelligence , catheter , projection (relational algebra) , plane (geometry) , planar , biomedical engineering , radiology , medicine , mathematics , computer graphics (images) , algorithm , psychology , pedagogy , geometry
Purpose To determine and track the planar orientation of active interventional devices without using localizing RF microcoils. Materials and Methods An image‐based tracking method that determines a device's orientation using projection images was developed. An automated and a manual detection scheme were implemented. The method was demonstrated in an in vivo mesocaval puncture procedure in swine, which required accurate orientation of an active transvascular needle catheter. Results The plane of the catheter was determined using two projection images. The scan plane was adjusted automatically to follow the catheter plane, and its orientation with respect to a previously acquired target plane was displayed. The algorithm facilitated navigation for a fast and accurate puncture. Conclusion Using image‐based techniques, with no mechanical design changes, the orientation of an active intravascular probe could be tracked. J. Magn. Reson. Imaging 2007. © 2007 Wiley‐Liss, Inc.