An automatic templates selection method for ultrasound guided tumor tracking

In this report, we propose a novel robust tumor tracking method for ultrasound guided RFA (radiofrequency ablation) treatments. Organ deformations seriously deteriorate the tracking performance. To cope with this problem, we propose a novel motion tracking method using dynamic templates. Our method achieves stable tracking by selecting templates automatically based on the texture features of ultrasound diagnostic images. On the other hand, the conventional method is unstable due to the variation to select templates manually. Experimental results show the effectiveness of our proposing motion tracking method concerning the robustness and accuracy.