Title :
Real time tracking of gallstones on ultrasonic images for extracorporeal lithotripsy
Author :
Devevey, C. ; Denis, F. ; Gimenez, G.
Author_Institution :
Lab. de Traitement du Signal et Ultrasons, Villeurbanne, France
Abstract :
A study is presented to enhance the efficiency of extracorporeal lithotripsy by tracking the calculus in ultrasonic images. The performances of four tracking techniques are compared in terms of accuracy and processing time. An algorithm based on the mean-normalized correlation and optimized by the log-D step technique is used for real-time implementation. This method is subjected to clinical tests with very promising results
Keywords :
biomedical ultrasonics; correlation methods; medical image processing; radiation therapy; accuracy; algorithm; calculus; clinical tests; extracorporeal lithotripsy; gallstones; log-D step technique; mean-normalized correlation; processing time; real time tracking; real-time implementation; ultrasonic images; Acoustic testing; Calculus; Design for disassembly; Fourier transforms; Lithotripsy; Medical tests; Medical treatment; Pixel; Shock waves; Target tracking;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.276011
