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Design of acoustic radiation force module for ultrasound elastography / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation ; (6): 322-326, 2013.
Artigo em Chinês | WPRIM | ID: wpr-264200
ABSTRACT
Developing an acoustic radiation force excitation module including 64 channels based in FPGA for ultrasound elastography. The circuit of the module was derived in bipolar, and the parameters such as excitation frequency, pulse repetition frequency, pulse number, element number and focus depth were adjustable. The acoustic field for special parameter was experimented with OptiSon laser acoustic field system with a result which reflects the width of focal spot is about 3 mm. The acoustic power was experimented with RFB2000 radiation force balance with a result which reflects acoustic power is increasing linearly with the number of pulses and the number of elements, and is increasing squarely with the peak-to-peak value of excitation voltage. The module is promising in factual application which can be triggered externally in synchronously, and can be combined with B-mode ultrasound system for ultrasound elastography.
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Ultrassom / Acústica / Técnicas de Imagem por Elasticidade Tipo de estudo: Estudo diagnóstico Idioma: Chinês Revista: Chinese Journal of Medical Instrumentation Ano de publicação: 2013 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Ultrassom / Acústica / Técnicas de Imagem por Elasticidade Tipo de estudo: Estudo diagnóstico Idioma: Chinês Revista: Chinese Journal of Medical Instrumentation Ano de publicação: 2013 Tipo de documento: Artigo