Title :
Time-frequency analysis of the thermoacoustic signals for early breast cancer detection
Author :
Guo, Yuanyue ; Wang, Meng ; Wang, Gang
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
The time-frequency(T-F) characteristics of the microwave-induced thermoacoustic signals generated from the tumors inside the breast are analyzed by Choi-Williams Distribution(CWD). The signals are simulated by finite-difference time-domain(FDTD) codes, with the semi-round breast model. The results indicate that round-shaped and ellipsoidal-shaped tumors with different sizes and shapes have different CWDs, and therefore, this T-F technique has the potential to detect different tumors and estimate its sizes and shapes, and become a new diagnostic method for early breast cancer.
Keywords :
biological organs; biomedical ultrasonics; biothermics; cancer; finite difference time-domain analysis; gynaecology; medical signal processing; microwave heating; microwave imaging; thermoacoustics; time-frequency analysis; tumours; Choi-Williams distribution; early breast cancer detection; ellipsoidal-shaped tumors; finite-difference time-domain codes; microwave-induced thermoacoustic signals; round-shaped tumors; time-frequency analysis; time-frequency characteristics; Brain modeling; Breast; Microwave theory and techniques; Shape; Time domain analysis; Time frequency analysis; Tumors; CWD; FDTD simulation; early breast cancer; microwave-induced thermoacoustic signal; time-frequency analysis;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6495-1
DOI :
10.1109/BMEI.2010.5640050
