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Abstract #3351

Tracking Planar Orientations of Active Interventional Devices for Realtime Image Guided Procedures

Sathyanarayana S, Aksit P, Karmarkar P, Solaiyappan M, Atalar E, Arepally A
Johns Hopkins University

We describe a method to track the planar orientation of active interventional devices without using localizing RF microcoils. The method is demonstrated in an in-vivo mesocaval shunt procedure that required accurate orientation of an active transvascular needle catheter. We determined the plane of the catheter using two projection images, adjusted the scan plane to follow the catheter plane, and displayed its orientation with respect to a previously acquired target plane, thus minimizing navigation time.