File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Pulsed application of focused ultrasound to the LI4 elicits deqi sensations: Pilot study

Author(s)
Yoo, Seung-SchikLee, WonhyeKim, Hyungmin
Issued Date
2014-08
DOI
10.1016/j.ctim.2014.05.010
URI
https://scholarworks.unist.ac.kr/handle/201301/5205
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906790007
Citation
COMPLEMENTARY THERAPIES IN MEDICINE, v.22, no.4, pp.592 - 600
Abstract
Objectives: Focused ultrasound (FUS) techniques enable the delivery of acoustic pressure waves to a localized, specific region of anatomy, and mechanically stimulate the sonicated region when given in a train of pulses. The present pilot study examines if the pulsed application of acoustic waves focused to an acupuncture point ( LI4, Hegu), i.e. FUS acupuncture, can elicit deqi sensations. Design and setting: The FUS was generated by a single-element ultrasound transducer, and delivered to the LI4 of acupuncture-naive participants (n =10) for a duration of 1s using 2ms tone-burst-duration and 50Hz pulse repetition frequency. The subjective ratings of deqi descriptors were obtained across different conditions, i.e. FUS acupuncture using acoustic intensities of 1 and 3W/cm2 (spatial-peak temporal-averaged intensity, I spta), sham sonication condition, tactile stimulation using a von Frey monofilament, and needle-based real and sham acupuncture. We also measured the presence of sharp pain, unpleasantness, and anxiety level during each condition. Results: The FUS acupuncture given at 3W/cm2 elicited deqi sensation ratings similar to those acquired during the needle-based acupuncture condition across the subjects, with significantly reduced levels of non-deqi related sensations, such as sharp pain, anxiety and unpleasantness. The lower acoustic intensity also generated deqi sensations, but at a lesser degree than the ones acquired using the higher acoustic intensity. Neither the sham conditions nor the tactile stimulation elicited deqi sensations. Conclusions: The present data on acoustic acupuncture, with its exquisite spatial and depth control, along with the ability to electronically adjust its intensity, may suggest its potential utilization as an alternative mode of acupuncture, although further study is needed to probe its clinical efficacy.
Publisher
CHURCHILL LIVINGSTONE
ISSN
0965-2299
Keyword (Author)
AcupunctureAlternative medicineUltrasoundNeuromodulation
Keyword
RANDOMIZED CONTROLLED-TRIALLOW-BACK-PAINACUPUNCTURE STIMULATIONALLERGIC RHINITISCLINICAL-TRIALELECTROACUPUNCTURERATSOSTEOARTHRITISDYSMENORRHEAMOXIBUSTION

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.