The simulations of ultrasound power patterns of low-frequency cylindrical transducers for tumors inside bones
Resource
[Engineering in Medicine and Biology, 1999. 21st Annual Conf. and the 1999 Annual Fall Meeting of the Biomedical Engineering Soc.] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Journal
First Joint Engineering in Medicine and Biology, 1999. 21st Annual Conf. and the 1999 Annual Fall Meeting of the Biomedical Engineering Soc. BMES/EMBS Conference, 1999
Pages
-
Date Issued
1999-10
Date
1999-10
Author(s)
DOI
N/A
Abstract
This study presents the therapeutic ultrasound power pattern simulations for tumors inside bone, i.e. intraosseous tumors without cortical breakthrough, using the low-frequency cylindrical transducers. The authors have shown that the 3-D wave equation for damped wave is a kind of Helmholtz's equation that can be solved by the commercially available software. Therefore, such a wave equation method can be utilized to solve the reflection and refraction issues in the tissue interfaces. This work sets the cylindrical transducer with 10 cm radius and 10 cm height. Considering the different parameters of bone thickness, driving frequency, muscle depth, radius, and length of tumor through scanning the low-frequency cylindrical transducer, the select 50 KHz driving frequency transducer seemed most optimal to treat most cases of intraosseous tumors.
Type
journal article
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