Abstract
The effects of low intensity ultrasound on the nerve tissues were explored in this study. A 5 MHz transducer was employed to generate different energy, including 200, 500, and 700 mW, and duty cycles, from 25 to 100% in a 2 KHz pulse repetition frequency, of ultrasounds were administrated to the excised sciatic nerve suspended in the Ringer's solution in conjunction with electrical stimulations. The conduction properties of an excised nerve were assessed by the magnitude of compound action potential (CAP) and conduction velocity (CV). Results showed that both CAP and CV of the sciatic nerve tended to increase or decrease associated with ultrasonic stimulations of all energy at a duty cycle of 100% or without ultrasonic stimulation, respectively. The stimulation using a 500 mW ultrasound was found to moreover result greater changes of CAP and CV (41.3% and 3.8%, respectively) than those by other energies. Consistent results were also found from a series of studies that applied a 500 mW ultrasound of different duty cycles ranged from 25% to 75% to stimulate the sciatic nerve for 5 minutes. This study concluded that the low intensity ultrasound is useful to enhance the CV and the CAP amplitude.
| Original language | English |
|---|---|
| Pages (from-to) | 1824-1827 |
| Number of pages | 4 |
| Journal | Proceedings - IEEE Ultrasonics Symposium |
| Volume | 3 |
| Publication status | Published - 2004 Dec 1 |
| Event | 2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada Duration: 2004 Aug 23 → 2004 Aug 27 |
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All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics
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Effects of low intensity ultrasound on the conduction property of neural tissues. / Wang, Shyh Hau; Yen, Ya Ling; Tsui, Po Hsiang.
In: Proceedings - IEEE Ultrasonics Symposium, Vol. 3, 01.12.2004, p. 1824-1827.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Effects of low intensity ultrasound on the conduction property of neural tissues
AU - Wang, Shyh Hau
AU - Yen, Ya Ling
AU - Tsui, Po Hsiang
PY - 2004/12/1
Y1 - 2004/12/1
N2 - The effects of low intensity ultrasound on the nerve tissues were explored in this study. A 5 MHz transducer was employed to generate different energy, including 200, 500, and 700 mW, and duty cycles, from 25 to 100% in a 2 KHz pulse repetition frequency, of ultrasounds were administrated to the excised sciatic nerve suspended in the Ringer's solution in conjunction with electrical stimulations. The conduction properties of an excised nerve were assessed by the magnitude of compound action potential (CAP) and conduction velocity (CV). Results showed that both CAP and CV of the sciatic nerve tended to increase or decrease associated with ultrasonic stimulations of all energy at a duty cycle of 100% or without ultrasonic stimulation, respectively. The stimulation using a 500 mW ultrasound was found to moreover result greater changes of CAP and CV (41.3% and 3.8%, respectively) than those by other energies. Consistent results were also found from a series of studies that applied a 500 mW ultrasound of different duty cycles ranged from 25% to 75% to stimulate the sciatic nerve for 5 minutes. This study concluded that the low intensity ultrasound is useful to enhance the CV and the CAP amplitude.
AB - The effects of low intensity ultrasound on the nerve tissues were explored in this study. A 5 MHz transducer was employed to generate different energy, including 200, 500, and 700 mW, and duty cycles, from 25 to 100% in a 2 KHz pulse repetition frequency, of ultrasounds were administrated to the excised sciatic nerve suspended in the Ringer's solution in conjunction with electrical stimulations. The conduction properties of an excised nerve were assessed by the magnitude of compound action potential (CAP) and conduction velocity (CV). Results showed that both CAP and CV of the sciatic nerve tended to increase or decrease associated with ultrasonic stimulations of all energy at a duty cycle of 100% or without ultrasonic stimulation, respectively. The stimulation using a 500 mW ultrasound was found to moreover result greater changes of CAP and CV (41.3% and 3.8%, respectively) than those by other energies. Consistent results were also found from a series of studies that applied a 500 mW ultrasound of different duty cycles ranged from 25% to 75% to stimulate the sciatic nerve for 5 minutes. This study concluded that the low intensity ultrasound is useful to enhance the CV and the CAP amplitude.
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UR - http://www.scopus.com/inward/citedby.url?scp=21644441713&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:21644441713
VL - 3
SP - 1824
EP - 1827
JO - Proceedings of the IEEE Ultrasonics Symposium
JF - Proceedings of the IEEE Ultrasonics Symposium
SN - 1051-0117
ER -