原名「台灣學術線上」
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項次 書目
1
題名:Feasibility Study of Noninvasive Tumor Treatment with Focused Ultrasound     (16點)
著者:Khaldon LweesyLuay FraiwanMais Al-ShalabiLayali MohammadRazan Al-Oglah
出版地區:台灣
出版城市:台南市
學科:醫學綜合
關鍵字:Geometrically focused transducer ; High-intensity focused ultra sound (HIFU) ; Lesion ; Sonication ; Treatment planning
刊名:Journal of Medical and Biological Engineering
卷期:30卷5期(2010.10)
頁碼:321-328
語言:英語
摘要: 英文摘要PDF

This paper describes the design , construction, and evaluation of a three-dimensional (3D) ultrasound system to be used for tumor treatment using high -intensity focused ultrasound (HIFU). The system consists of two parts: an ultrasonic therapy part and a treatment planning part. The ultrasonic therapy part consists of an ultraso und bowl -shaped transducer made from lead zirconate titanate (PZT) and with a reso nance frequency of 0.5 MHz. Electrical LC matching circuit built for maximum electrical power delivery to the transducer, a function genera tor, and a power amplifier. The ultrasonic therapy part is designed for generating a focus with high aco ustical powers. The treatment plann ing part consists of three stepp er motors (responsible for moving the setup in the x- y- and z-di rect ions), three high-voltage high-current Darl ington arrays (to supply the stepper motors with the required voltage s and currents), and C# software to perform the treatment planning. To assess the movement of the treatment planner, each of the three stepper motors was moved forward and backward from end to end. Then the treatment planner was successfully driven to cover cubes of dimensions of I x I x I crrr' , 2 x 2 x 2 crrr', 4 x 4 x 4 cnr' , and 8 x 8 x 8 crrr', with step sizes 0.5 mm, I mm, 2 mm, and 4 mm, respec tively . Ex vivo experiments were performed and indicated the capability of the system to generate lesions both on- and off-axis . Three different lesions, one on-axis and two off-axis, were successfully generated.


    

本卷期目次
Journal of Medical and Biological Engineering 30卷5期 (2010.10)
Review: Tissue Engineering Technology to Enhance Cell Recruitment for Regeneration Therapy/ Hiroshi KoharaYasuhiko Tabata
Parameter Investigation of Detrended Fluctuation Analysis for Short-term Human Heart Rate Variability/ Rong-Guan YehGau-Yang ChenJiann-Shing ShiehCheng-Deng Kuo
Development of a Multi-scale Noise Reduction Algorithm for Cone-beam Micro-CT Using Fuzzy Logic-based Anisotropic Filter/ Zhi-Wei TangGuang-Shu Hu
A High-capacity Reversible Data-hiding Scheme for Medical Images/ Shu-Chien HuangMing-Shun Lin
Multivariable Fuzzy Logic/Self-organizing for Anesthesia Control/ Yuan-Chao ChouMaysam F. AbbodJiann-Shing ShiehChia-Yu Hsu
Classification of Benign and Malignant Breast Tumors by Ultrasound B-scan and Nakagami-based Images/ Yin-Yin LiaoPo-Hsiang TsuiChih-Kuang Yeh
Study on Mechanical Properties of Thrombomodulin-transfected Cancer Cells by Atomic Force Microscopy/ Chi-Chang LinTsung-I YinYi-Dong LinTung-I LinYing-Ting ChenJen-Fin LinHua-Lin WuHsien-Chang Chang
Feasibility Study of Noninvasive Tumor Treatment with Focused Ultrasound/ Khaldon LweesyLuay FraiwanMais Al-ShalabiLayali MohammadRazan Al-Oglah
The Use of Virtual Reality-based Dynamometer Training to Enhance Selective Joint Torque Control in a Child with Cerebral Palsy/ Imre CikajloZlatko Matjačić
 
   
 
   

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