Title :
Influence of variable propagation speed on high-definition compound imaging
Author :
Herment, Alain ; Guglielmi, Jean-Paul ; Peronneau, Pierre
Author_Institution :
INSERM, Paris, France
Abstract :
The principle of a high-definition ultrasound imaging based on a compound acquisition of B-scans with a sectorial echograph is presented. Data processing is based on both deconvolution and reflection tomography. The images obtained by using this method, with respect to those of two-dimensional deconvolution, show the following: (1) an improvement in definition close to 9; (2) a gain in signal-to-noise ratio of about 4; and (3) a decrease in computations of 12. The effects of a limited acquisition window and of variable propagation speed are discussed.<>
Keywords :
biomedical ultrasonics; computerised picture processing; medical diagnostic computing; B scan compound acquisition; data processing; deconvolution; high-definition compound imaging; limited acquisition window; reflection tomography; sectorial echograph; signal-to-noise ratio; ultrasound imaging; variable propagation speed;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94770
