Abstract: Dynamic 3D ultrasound is a very promising technology for clinical use,but not being a Cartesian 3D dataset,3D ultrasound data can not be visualized directly with real-time volume rendering accelerated by 3D texture hardware.In this paper,fast volume rendering using 3D texture hardware acceleration is introduced and modern PC graphics card architecture analyzed.A modified method is proposed to obtain real-time volume rendering of dynamic 3D ultrasound data by programming vertex shader in GPU.Experimental results show that 3D ultrasound data can be rendered with real-time speed in normal PC platform.The method can be widely applied in future 3D dynamic ultrasound clinical research.