In more recent work, the three-dimensional ultrasound volume was replaced by images from a single ultrasound image pose from a convex array transducer. The feasibility of this approach was demonstrated, but the accuracy was lacking due to the physical limitations of the convex array transducer. In this work, we propose the use of a bi-plane transrectal ultrasound transducer. The main advantage of using this type of transducer is that the ultrasound elements are no longer restricted to a single plane. While this development would be limited to prostate applications, liver and kidney applications are also feasible if a suitable transducer is built. This work is demonstrated in two experiments, one without photoacoustic sources and one with. The resulting target registration error for these experiments were 1.07mm±0.35mm and 1.27mm±0.47mm respectively, both of which are better than current available navigation systems.
ACCESS THE FULL ARTICLE
Alexis Cheng, Hyun Jae Kang, Haichong K. Zhang, Russell H. Taylor, Emad M. Boctor, "Ultrasound to video registration using a bi-plane transrectal probe with photoacoustic markers," Proc. SPIE 9786, Medical Imaging 2016: Image-Guided Procedures, Robotic Interventions, and Modeling, 97860J (24 March 2016);