Title :
Transmit-receive dynamic focusing with limited diffraction beams
Author_Institution :
Dept. of Phys. & Biophys., Mayo Clinic, Rochester, MN, USA
Abstract :
A two-way Fourier imaging method has been developed with limited diffraction beams. Resolution and sidelobes of 2D and 3D images constructed with the method are similar to those obtained with a conventional two-way dynamic focusing system if a cosine aperture apodization is applied. No delay and image montage are required for the new method and thus imaging systems will be greatly simplified
Keywords :
biomedical ultrasonics; image resolution; ultrasonic diffraction; 2D images; 3D images; conventional two-way dynamic focusing system; cosine aperture apodization; image montage; limited diffraction beams; medical diagnostic imaging; sidelobes; transmit-receive dynamic focusing; two-way Fourier imaging method; Apertures; Array signal processing; Delay; Diffraction; Fast Fourier transforms; Focusing; Fourier transforms; Frequency; Image resolution; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.661870
