Adaptive scan sequence for real-time ultrasound 3-D imaging.
An adaptive scan sequence is proposed for real-time ultrasound three-dimensional (3-D) imaging. Generally, the refresh rate of 3-D imaging is limited by the view window, resolution and sound speed in the human body. If the object is transformed or moved during the data set acquisition, the 3-D image will be distorted. To realize a high refresh rate for 3-D imaging, a reduction of the number of transmissions is required. Using a small number of transmissions results in a small view window or low resolution. In this paper, we propose a method to adaptively modify the spatial and temporal beam density according to the local motion of the object. We present 3-D images of a phantom with high frame rate, high resolution and wide view-angle window, significantly reducing the size of the full real scan raw data set.
Hashimoto
Hiroshi
H
Department of Information and Computer Science, Faculty of Engineering, Kagoshima University, Kagoshima, 890-8580, Japan. hiroshi.hashimoto@med.ge.com
Takeuchi
Yasuhito
Y
D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods*; D009068:Movement; D019047:Phantoms, Imaging; D014463:Ultrasonography / Q000379:methods*