TY - JOUR
T1 - Study on the effects of motion on an estimation method of average speed of sound
AU - Iida, Miku
AU - Nagaoka, Ryo
AU - Hashuro, Muhammad Shiddiq Sayyid
AU - Kaneko, Kei
AU - Hasegawa, Riko
AU - Omura, Masaaki
AU - Ohta, Makoto
AU - Hasegawa, Hideyuki
N1 - Publisher Copyright:
© 2025 The Japan Society of Applied Physics. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
PY - 2025/4/1
Y1 - 2025/4/1
N2 - In the image reconstruction of ultrasound B-mode images, an average speed of sound (SoS) in living tissue is assumed to be a constant value. However, the assumed value may be different with the true values because the SoS varies depending on the properties of the tissue. The error between the true and assumed SoS causes degradation of ultrasound B-mode images. We have proposed a method for estimating an average SoS distribution. In this study, we conducted numerical simulations and evaluated the effects of motion on the average SoS estimation method. Furthermore, we conducted phantom experiments. In both the numerical simulation and phantom experiment, when a B-mode image was reconstructed using the estimated average SoS distribution, the contrast value was improved regardless of the motions.
AB - In the image reconstruction of ultrasound B-mode images, an average speed of sound (SoS) in living tissue is assumed to be a constant value. However, the assumed value may be different with the true values because the SoS varies depending on the properties of the tissue. The error between the true and assumed SoS causes degradation of ultrasound B-mode images. We have proposed a method for estimating an average SoS distribution. In this study, we conducted numerical simulations and evaluated the effects of motion on the average SoS estimation method. Furthermore, we conducted phantom experiments. In both the numerical simulation and phantom experiment, when a B-mode image was reconstructed using the estimated average SoS distribution, the contrast value was improved regardless of the motions.
KW - image reconstruction
KW - medical ultrasound imaging
KW - speed-of-sound estimation
UR - http://www.scopus.com/inward/record.url?scp=105003485588&partnerID=8YFLogxK
U2 - 10.35848/1347-4065/adc1d7
DO - 10.35848/1347-4065/adc1d7
M3 - 学術論文
AN - SCOPUS:105003485588
SN - 0021-4922
VL - 64
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 4
M1 - 04SP51
ER -