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http://dx.doi.org/10.17946/JRST.2018.41.1.53

Effects on Changes of the Speed of Sound and the Broadband Ultrasound Attenuation on the Medium's Infilling in Additive Manufacturing Method of 3D Printing  

Seoung, Youl-Hun (Department of Radiological Science, College of Health Medical Science, Cheongju University)
Publication Information
Journal of radiological science and technology / v.41, no.1, 2018 , pp. 53-60 More about this Journal
Abstract
The purpose of this study was investigating the effect of 3D printing technology that changes the speed of sound (SOS) and the broadband ultrasound attenuation (BUA) by controlling the density of the media phantom. We used 3D printers which called additive manufacturing (AM) by using material with polylactic acid (PLA). The inside of the medium phantom was filled crossly with 100%, 90%, 80%, 70%, 60%, and 50% of the material. The ultrasonic instrument measured the SOS and the BUA using a 0.55 MHz ultrasound output in opposing mode with a pair of transducers. As a result, the density of the medium phantoms with the SOS showed very high correlation (r = 0.944), but the SOS showed very low correlation (r = 0.500). It is expecting that the manufacturing and measurement method of the medium phantom using 3D printing technology will be used as basic data for ultrasonic bone mineral density.
Keywords
3D printing; Additive manufacturing; Speed of sound; Broadband ultrasound attenuation; Bone mineral density;
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Times Cited By KSCI : 5  (Citation Analysis)
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