國家衛生研究院 NHRI:Item 3990099045/7863
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    题名: Measurement of ultrasonic attenuation in diabetic neuropathic sciatic nerves for diagnostic and therapeutic applications
    作者: Chen, GS;Lee, YF;Cheng, JS
    贡献者: Division of Medical Engineering Research
    摘要: Measurements of ultrasonic attenuation in the sciatic nerves of rats were performed to verify the feasibility of ultrasound diagnosis of peripheral neuropathy and to avoid damage to the nerves caused by overheating in pain management applications. A rat model of diabetic peripheral neuropathy was established. The proximal-segment and middle-segment sciatic nerves of control and neuropathic rats were dissected for the attenuation measurement. Two commercial ultrasound transducers and a self-developed experimental platform were used in the measurements. Using H&E staining and transmission electron (TE) microscopy, morphological analysis of the control and neuropathic nerves was performed to determine the relationship between attenuation and the histology of the nerves. The experimental results showed that the attenuation coefficients of the control, second-week, fourth-week, and eighth-week neuropathic nerves were −6.68 ± 0.50, −5.61 ± 0.34, −6.27 ± 0.40, and −7.10 ± 0.35 dB/cm at 2.68 MHz, respectively. The respective values at 7.50 MHz were −14.96 ± 0.79, −12.65 ± 0.28, −13.98 ± 1.07, and −16.00 ± 0.54 dB/cm. The changes in the attenuation coefficients were significantly different among the second-week, fourth-week, and eighth-week DN nerves. Additionally, the ultrasonic attenuation coefficient of the rat sciatic nerve was fourfold that of the cat brain and cow liver and twofold that of human muscle.
    日期: 2014-08
    關聯: Annals of Biomedical Engineering. 2014 Aug;42(8):1749-1759.
    Link to: http://dx.doi.org/10.1007/s10439-014-0989-5
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0090-6964&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000339399000015
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84904385496
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