Study on the effects of motion on an estimation method of average speed of sound

Miku Iida; Ryo Nagaoka; Muhammad Shiddiq Sayyid Hashuro; Kei Kaneko; Riko Hasegawa; Masaaki Omura; Makoto Ohta; Hideyuki Hasegawa

doi:10.35848/1347-4065/adc1d7

Study on the effects of motion on an estimation method of average speed of sound

Miku Iida^*, Ryo Nagaoka^*, Muhammad Shiddiq Sayyid Hashuro, Kei Kaneko, Riko Hasegawa, Masaaki Omura, Makoto Ohta, Hideyuki Hasegawa

^*Corresponding author for this work

Intellectual Information Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	04SP51
Journal	Japanese Journal of Applied Physics
Volume	64
Issue number	4
DOIs	https://doi.org/10.35848/1347-4065/adc1d7
State	Published - 2025/04/01

Keywords

image reconstruction
medical ultrasound imaging
speed-of-sound estimation

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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10.35848/1347-4065/adc1d7

Cite this

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title = "Study on the effects of motion on an estimation method of average speed of sound",

abstract = "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.",

keywords = "image reconstruction, medical ultrasound imaging, speed-of-sound estimation",

author = "Miku Iida and Ryo Nagaoka and Hashuro, {Muhammad Shiddiq Sayyid} and Kei Kaneko and Riko Hasegawa and Masaaki Omura and Makoto Ohta and Hideyuki Hasegawa",

note = "Publisher Copyright: {\textcopyright} 2025 The Japan Society of Applied Physics. All rights, including for text and data mining, AI training, and similar technologies, are reserved.",

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doi = "10.35848/1347-4065/adc1d7",

language = "英語",

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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

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

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Study on the effects of motion on an estimation method of average speed of sound

Abstract

Keywords

ASJC Scopus subject areas

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