A Calibration Study of Therapeutic Ultrasound Equipment Output Intensity Accuracy

Title
A Calibration Study of Therapeutic Ultrasound Equipment Output Intensity Accuracy
Author(s)
안상호박소현육군창[육군창]
Keywords
Ultrasound; Calibration; Power output; BNR; ERA
Issue Date
201105
Publisher
대한물리치료학회
Citation
대한물리치료학회지, v.23, no.3, pp.37 - 42
Abstract
Purpose: The principal objective of this study was to evaluate the power output of ultrasound in Korean clinics and compare the value with Korean and global standards. Methods: A total of 69 units were measured for ultrasound power output. The normal range of power output level was ±30% of the output set according to KFDA standards. Device model, manufacturer, ERA, and BNR were obtained via simple questionnaires. A portable ultrasound power meter was used for output measurement. Results: 37 machines, with reported ERA values, were assessed for power output per unit area. Of these machines, 13(37.14%) were considered to be compliant with US FDA standards at 0.5, 1.0, 1.5, 20 W/cm2 and 18 (51.43%) were considered within KFDA standards. The remainder of the machines were outside the standard error and evidenced irregular output levels, even though most of them were the same model. Conclusion: Appropriate ultrasound intensity is incredibly important for safety and effective use. Therefore, the KFDA standards regarding ultrasound may require revision in light of global standards, including BNR and ERA additionally,attention should be paid to regular calibration for safe use in clinical practice.
URI
http://hdl.handle.net/YU.REPOSITORY/25151
ISSN
1229-0475
Appears in Collections:
의과대학 > 재활의학교실 > Articles
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