TY - GEN
T1 - Visualization of a simulated lymph channel using contrast enhanced active Doppler ultrasonography method
AU - Saito, Katsuya
AU - Yoshida, Kenji
AU - Omura, Masaaki
AU - Oguri, Takuma
AU - Kamiyama, Naohisa
AU - Yamaguchi, Tadashi
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - This study proposed a method for visualizing lymph channels filled with stationary fluid, named contrast-enhanced active Doppler ultrasonography (CEADUS). CEADUS can quantify the translation of ultrasound contrast agent (UCA) due to the acoustic radiation force by Doppler method. In this report, we attempted to visualize a cylindrical channels with a diameter of 0.28 and 0.1-mm filled with a suspension of Sonazoid™ as UCAs in a tissue mimicking phantom containing acoustic scatterers. The single element concave transducer with 14.4-MHz center frequency was scanned at the step of 10 μm in the lateral direction, and ultrasound was emitted with pulse repetition frequency of 2 kHz at each scan line. We obtained two-dimensional images using dynamic information of the UCAs by analyzing for several seconds exposure duration in echo signals at each scanning line. As a result, the CEADUS image could be detected with high sensitivity even when the channel diameter was below the resolution.
AB - This study proposed a method for visualizing lymph channels filled with stationary fluid, named contrast-enhanced active Doppler ultrasonography (CEADUS). CEADUS can quantify the translation of ultrasound contrast agent (UCA) due to the acoustic radiation force by Doppler method. In this report, we attempted to visualize a cylindrical channels with a diameter of 0.28 and 0.1-mm filled with a suspension of Sonazoid™ as UCAs in a tissue mimicking phantom containing acoustic scatterers. The single element concave transducer with 14.4-MHz center frequency was scanned at the step of 10 μm in the lateral direction, and ultrasound was emitted with pulse repetition frequency of 2 kHz at each scan line. We obtained two-dimensional images using dynamic information of the UCAs by analyzing for several seconds exposure duration in echo signals at each scanning line. As a result, the CEADUS image could be detected with high sensitivity even when the channel diameter was below the resolution.
KW - Doppler effects
KW - acoustic radiation force
KW - simulated lymph channel
KW - translational velocity
KW - ultrasound contrast agent
UR - http://www.scopus.com/inward/record.url?scp=85077527181&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2019.8925978
DO - 10.1109/ULTSYM.2019.8925978
M3 - 会議への寄与
AN - SCOPUS:85077527181
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 2299
EP - 2302
BT - 2019 IEEE International Ultrasonics Symposium, IUS 2019
PB - IEEE Computer Society
T2 - 2019 IEEE International Ultrasonics Symposium, IUS 2019
Y2 - 6 October 2019 through 9 October 2019
ER -