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Recent News

July 2025 Proceedings paper published (Kazuki Tamura and Shinpei Okawa "Development of a specific acoustic impedance microscope using a laser ultrasound", Proc. SPIE 13702, Biomedical Imaging and Sensing Conference 2025, 1370208. https://doi.org/10.1117/12.3072370)
Jun. 2025 Presentation (Shinpei Okawa, Qaisar Shahzad, Yoko Hoshi, Numerical Study on Time-Domain Functional Near-Infrared Optical Tomography with Regularization Minimizing Entropy, Th3B.6, OPTICA/SPIE European Conferences on Biomedical Optics 2025.)
Jun. 2025 Paper published (Ito, K., Iijima, Y., Misumi, T., Hayase, G., Tamura, K., Ikushima, K., Yoshino, D., Biochemical state in tissue can be detected through ultrasound signal. npj Biomed. Innov. 2, 18 (2025).　https://doi.org/10.1038/s44385-025-00026-w)
Apr. 2025 Presentation (K. Tamura, S. Okawa, "Development of a specific acoustic impedance microscope using a laser ultrasound" (BISC4-04), SPIE Optics & Photonics International Congress 2025)
Apr. 2025 Published paper was selected as an Editor's Choice (Okawa, S.; Hoshi, Y. A Review of Image Reconstruction Algorithms for Diffuse Optical Tomography. Appl. Sci. 2023, 13, 5016. https://doi.org/10.3390/app13085016)
Jan. 2025 SO talked in the 45th Annual Meeting of the Laser Society of Japan.
Jan. 2025 A paper published and highlighted as an Editor's Pick (Q. Shahzad, Y. Yamada, Y. Hoshi, S. Okawa, High-contrast and noise-robust image reconstruction with regularization minimizing entropy for diffuse optical tomography. Opt. Continuum, 4(2), 86-113, 2025. https://doi.org/10.1364/OPTCON.542669)
Nov. 2024 Presentations (M. Faheem, K. Tamura, S. Okawa, "Improvement in signal-to-noise ratio of frequency-domain photoacoustic measurement," (30aEJ3), Q. Shahzad, Y. Yamada, Y. Hoshi, S. Okawa, "Image reconstruction with regularization minimizing entropy for diffuse optical tomography" (30p4PD2), Optics & Photonics Japan 2024)
Oct. 2024 A paper published (K. S. Okawa, S. Okawa, H. Sasa & M. Ishihara, Clinical application of photoacoustic imaging for cervical precursor lesion detection, Journal of Medical Ultrasonics, 2024, https://doi.org/10.1007/s10396-024-01501-4)
May. 2024 KT published a paper (Tamura K, Hashimoto K, Okawa S, Thermoelastic wave generation and its longitudinal wave propagation measurement by a microscopic optical interferometer. Ultrasonics, 141, 107319 (2024) https://doi.org/10.1016/j.ultras.2024.107319).
Jan. 2024 KT published a paper (Yoshida K, Omura M, Tamura K, Hirata S, Yamaguchi T, Detection of individual microbubbles by burst-wave-aided contrast-enhanced active Doppler ultrasonography. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control (2024) https://ieeexplore.ieee.org/document/10412681).
Jan. 2024 KT published a paper (Tamura, K., Ito, K., Kishimoto, R., Yoshida, K., Kishimoto, T., Obata, T., Yamaguchi, T., The effect of steatosis on shear-wave velocity and viscoelastic properties related to liver fibrosis progression in rat models. Ultrasound in Medicine & Biology (2024) https://doi.org/10.1016/j.ultrasmedbio.2024.01.002).
Jan. 2024 SO published a paper (Okawa, S.K., Hirasawa, T., Okawa, S., Fujita, M., and Ishihara, M., "Real-time fetal monitoring using photoacoustic measurement of placental oxygen saturation in a rabbit hypoxia model," Placenta 146 (2024), 110-119. https://doi.org/10.1016/j.placenta.2024.01.005).
Dec. 2023 KT talked about "Fully Optic Characterization of Acoustic Impedance Implementable in Conventional Optical Microscope" in Acoustics 23.
Nov. 2023 SO talked about "Diffuse optical tomography: now and the future" in Optics and Photonics Japan 2023.
Nov. 2023 KT talked about "Fully optic characterization of acoustic impedance implementable in optical microscope" in The 44th Symposium on Ultrasonic Electronics (USE 2023) .
Sep. 2023 KT talked about "Speed of Sound Evaluation of cryosectoned Faty Liver Specimens UsingQuanitative Acoustic Microscopy" in 2023 IEEE International Ultrasonics Symposium.
Jun. 2023 KT talked about "Development of Mechanical Property Microscopy Using Photoacoustic Excitation and Optical Interferometry" in 47th Annual International Symposium on ULTRASONIC IMAGING AND TISSUE CHARACTERIZATION.
Apr. 2023 A review paper was published (Okawa, S.; Hoshi, Y. A Review of Image Reconstruction Algorithms for Diffuse Optical Tomography. Appl. Sci. 2023, 13, 5016. https://doi.org/10.3390/app13085016)
Apr. 2023 A paper was published (, , , and (2023) Improved robustness of multi-component analysis in amplitude envelope statistics using plane waves. Jpn. J. Appl. Phys. 62 SJ1043. https://doi.org/10.35848/1347-4065/acc749)
Feb. 2023 A paper was published (Tamura K, Ito K, Yoshida S, Mamou J, Miura K and Yamamoto S (2023) Alteration of speed-of-sound by fixatives and tissue processing methods in scanning acoustic microscopy. Front. Phys. 11:1060296. https://doi.org/10.3389/fphy.2023.1060296 )
Nov. 2022 KT was awarded the grand prize in 5th Shizuoka Tech Grand prix
Oct. 2022 SO talked in workshop on computational medical science in Tsukuba University.
Apr. 2022 Lab launched