1H-2 Prediction of Success for HIFU Treatments of Prostate Cancer Based on Acoustic Energy Density

Seip, R.; Sanghvi, Narendra T.; Fedewa, Russell J.; Carlson, Roy; Koch, M.; Gardner, Thomas A.

doi:10.1109/ultsym.2006.196

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They share the same goals with these methods, namely the reduction of treatment time, the decrease of peak intensities, and the generation of more uniform treatment temperatures. 35) It should be mentioned that the time required to focus ultrasonic beams on the target should be less than the duration of the tissue variations due to the effect of breathing and blood circulation. This is important because, when the target changes its position, precision in focusing the beam on the target is lost.…”

Section: Computational Methods and Approximationmentioning

confidence: 99%

Ultrasound Thermotherapy of Breast: Theoretical Design of Transducer and Numerical Simulation of Procedure

Behnia¹,

Ghalichi

Bonabi³

et al. 2006

jjap

View full text Add to dashboard Cite

The absorbed ultrasound energy is changed into heat in a dissipative medium. This could be of great advantage in treating tumors in a noninvasive manner, by raising their temperature to cytotoxic levels. In this study we investigated whether using a fixed-focus transducer can destroy breast tumor cells, especially in early stages, in a cost-effective manner and reduce treatment time significantly. An appropriate fixed-focus transducer was designed, and the resultant acoustic pressure was calculated by solving the Rayleigh integral. A two-dimensional breast model was constructed from the magnetic resonance image (MRI) of a cancerous breast. Then, the induced temperature elevation was calculated using the bioheat equation and applying the finite element method (FEM) to the model. Results demonstrate that this transducer can generate a temperature of up to 61 C in 3 s, which is sufficient to destroy cancer cells, particularly in early stages.

show abstract

Section: Computational Methods and Approximationmentioning

confidence: 99%