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Lookup NU author(s): Kim Keltie,
Dr Barry Ward,
Dr Andrew Sims
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The MIST Therapy wound healing device (Celleration, Eden Prairie, MN, USA), which uses low-frequency ultrasound to deliver an atomized saline spray to acute wounds, was evaluated in a laboratory environment. The output of the MIST device was characterized by its frequency, transmission in the presence and absence of the saline spray and intensity. When measured up to 500 mm away from the transducer tip, the transmission of 39.5 kHz ultrasound was not significantly attenuated by the saline itself. In the absence of the saline spray, the acoustic intensity range of the MIST device was calculated to be 429–188 mW cm−2 across the manufacturer-specified treatment range (12.5–20 mm). Because of the acoustic impedance mismatch between air and soft tissue, the MIST Therapy device would deliver only 0.1% of this incident intensity into the wound site.
Author(s): Keltie K, Reay CA, Bousfield D, Cole H, Ward B, Oates CP, Sims AJ
Publication type: Article
Publication status: Published
Journal: Ultrasound in Medicine and Biology
Print publication date: 01/07/2013
Online publication date: 03/04/2013
Acceptance date: 28/10/2012
ISSN (print): 0301-5629
ISSN (electronic): 1879-291X
Publisher: Elsevier Inc.
PubMed id: 23562019
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