caa a22 4500 605539421 CHVBK 20210128100906.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10396-014-0560-x doi (NATIONALLICENCE)springer-10.1007/s10396-014-0560-x Poly(vinyl alcohol) gel ultrasound phantom with durability and visibility of internal flow [Elektronische Daten] [Kenichi Funamoto, Osamu Yamashita, Toshiyuki Hayase] Purpose: Among various existing flow phantoms, none is characterized by appropriate acoustic, visibility, and durability properties simultaneously. The aim of this study was to develop a durable ultrasound phantom with visibility of the internal flow. Methods: Poly(vinyl alcohol) (PVA) gel was chosen as the basic material. The acoustic properties of various PVA gels were measured with 40-MHz ultrasound, the compositions of PVA, dimethyl sulfoxide (DMSO), and glass microbeads being changed, while visually checking the transparency. Wall-less ultrasound flow phantoms with a straight channel 2mm in diameter were made from PVA gel, and ultrasound B-mode imaging was conducted with blood-mimicking fluid flow. Results: The acoustic properties of in vivo soft tissue were reproduced by PVA gel with a PVA concentration of 15 mass% and a glass microbead concentration of 2.9 mass% in a solvent of 98mol% DMSO, showing acoustic properties of 1567±4m/s and 56±5dB/cm. The PVA gel was durable with visibility of the flow in the ultrasound phantom. The ultrasound B-mode image of the ultrasound flow phantom showed features approximating those of a mouse carotid artery. Conclusion: A durable PVA gel ultrasound phantom with visibility of the internal flow was developed. The Japan Society of Ultrasonics in Medicine, 2014 Ultrasound phantom nationallicence Tissue-mimicking material nationallicence Poly(vinyl alcohol) gel nationallicence Acoustic properties nationallicence Funamoto Kenichi Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, 980-8577, Sendai, Japan aut Yamashita Osamu Graduate School of Engineering, Tohoku University, 6-6-01 Aoba Aramaki, Aoba-ku, 980-8579, Sendai, Japan aut Hayase Toshiyuki Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, 980-8577, Sendai, Japan aut Journal of Medical Ultrasonics Springer Japan 42/1(2015-01-01), 17-23 1346-4523 42:1<17 2015 42 10396 https://doi.org/10.1007/s10396-014-0560-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10396-014-0560-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Funamoto Kenichi Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, 980-8577, Sendai, Japan aut NATIONALLICENCE 700 1- Yamashita Osamu Graduate School of Engineering, Tohoku University, 6-6-01 Aoba Aramaki, Aoba-ku, 980-8579, Sendai, Japan aut NATIONALLICENCE 700 1- Hayase Toshiyuki Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, 980-8577, Sendai, Japan aut NATIONALLICENCE 773 0- Journal of Medical Ultrasonics Springer Japan 42/1(2015-01-01), 17-23 1346-4523 42:1<17 2015 42 10396