Significant acceleration of 2D-3D registration-based fusion of ultrasound and x-ray images by mesh-based DRR rendering. - Markus Kaiser 003; Matthias John 001; Anja Borsdorf; Peter Mountney; Razvan Ioan Ionasec; Alois Nöttling; Philipp Kiefer; Jörg Seeburger; Thomas Neumuth (Image-Guided Procedures, 2013)