Blood flow noise transducer for detecting intracranial vascular deformations
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概要
- 論文の詳細を見る
A transducer using PVDF film, which is placed on the eyelid, has been designed to measure intracranial blood flow noise, called "bruit", as a screening test for detecting intracranial vascular deformations such as aneurysms, stenosis, and malformations. First, the mechanical impedance of the eye was measured. Then, the transducer performance on the eye was evaluated in terms of sensitivity versus frequency while varying the parameters of the transducer components. The prototype transducer fabricated had a sensitivity of -76dB(0dB=1V/(dyn/cm^2))at frequencies of up to around 1, 000Hz. It was successfully used in a neurosurgical clinic to measure the bruit signals, and was proved to be effective for detecting cerebral aneurysms and stenosis.
- 社団法人日本音響学会の論文
著者
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Kobayashi Kenji
Departmant Of Zoology Graduate School Of Science Kyoto University
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Hasegawa Jun
Department Of Anesthesiology Tokai University School Of Medicine
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Hasegawa Jun
Department Of Electronics & Systems Faculty Of Engineering Takushoku University
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