西安交通大学学报(英文版)
西安交通大學學報(英文版)
서안교통대학학보(영문판)
JOURNAL OF XI'AN MEDICAL UNIVERSITY
2003年
1期
107-110
,共4页
limited diffraction array beam%frame rate%imaging
Objective To investigate a new class of solutions to the isotropic/homogeneous scalar wave equation, which termed limited diffraction beams and realize ultrasonic 3D imaging. Methods Limited diffraction beams were derived. We performed the study of 3D pulse-echo imaging with limited diffraction array beam. To obtain high frame rate images, a single plane wave pulse (broadband) was transmitted with the arrays. Echoes received with the same arrays were processed with Fourier method to construct 3D images. Results Compared with traditional pulse-echo imaging, this method has a larger depth of field, high frame rate, and high signal-to-noise ratio. Conclusion The new method has prospect of high frame rate 3D imaging. In addition, the imaging system based this method is easily implemented and has high quality image.
