Fluid flow measurement for diagnosis of ventricular shunt malfunction using nonlinear responses of microbubbles in the contrast-enhanced ultrasound imaging
- Authors
- Park, Suhyun; Yoon, Heechul; Emelianov, Stanislav; Aglyamov, Salavat
- Issue Date
- Jul-2017
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.56, no.7
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 56
- Number
- 7
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4269
- DOI
- 10.7567/JJAP.56.07JF10
- ISSN
- 0021-4922
1347-4065
- Abstract
- Contrast-enhanced ultrasound imaging utilizing the nonlinear responses of microbubbles is proposed for identifying ventricular shunt malfunction. The developed method suppresses the signal from walls of a shunt catheter and background tissues, and allows accurate measurements of the cerebrospinal fluid flow within the shunt catheter using a relatively small concentration of microbubbles. The flow rates estimated in the linear mode were significantly underestimated (65% at 0.1 ml/min and 5.0% microbubble concentration) while estimates using the nonlinear mode were not. Overall, the nonlinear responses of microbubbles improve the estimation of flow rates in a shunt catheter at low concentrations of microbubbles. (C) 2017 The Japan Society of Applied Physics
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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