全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Hideyuki Hasegawa , Ryo Nagaoka
来源:[J].Journal of Medical Ultrasonics(IF 0.635), 2019, Vol.46 (3), pp.297-307Springer
摘要:Abstract(#br) Purpose(#br)Ultrasound beamforming is required to obtain clinical ultrasound images. In the beamforming procedure, the distance between the receiving focal point and each transducer element is determined based on the assumed speed of sound in the tissue. However, th...
作者:Ryo Nagaoka , Genta Masuno ...
来源:[J].Ultrasonics(IF 2.028), 2015, Vol.55, pp.92-103Elsevier
摘要:Abstract(#br)Pulse-wave velocity (PWV) is an important index for diagnosing cardiovascular diseases. The pulse wave is volumetric change induced by heartbeat or inflowing blood, and significantly depends on the propagating path and stiffness of the artery. In this study, PWV...
作者:Ryo Nagaoka , Shingo Sakai ...
来源:[J].Ultrasound in Medicine & Biology(IF 2.455), 2012, Vol.38 (10), pp.1833-1838Elsevier
摘要:Abstract(#br)Observing the morphology of human skin is important in the diagnosis of skin cancer and inflammation and in the assessment of skin aging. High-frequency ultrasound imaging provides high spatial resolution of the deep layers of the skin, which cannot be visualized by ...
作者:Ryo Nagaoka , Takuya Tabata ...
来源:[J].Photoacoustics, 2018, Vol.9, pp.39-48DOAJ
摘要:Metastasis frequently occurs even in the early stage of breast cancer. This research studied the feasibility of using photoacoustic (PA) imaging for identifying metastasis in the lymph vessels of mice. The photoacoustic efficiency of various contrast agents was investigated,...
作者:Ryo Nagaoka , Rena Yamazaki , Yoshifumi Saijo
来源:[J].Physics Procedia, 2015, Vol.70, pp.1161-1164Elsevier
摘要:Abstract(#br)Photoacoustic (PA) signal is very sensitive to noise generated by peripheral equipment such as power supply, stepping motor or semiconductor laser. Band-pass filter is not effective because the frequency bandwidth of the PA signal also covers the noise frequency. The...
作者:Ryo Nagaoka , Genta Masuno ...
来源:[J].Transactions of Japanese Society for Medical and Biological Engineering, 2014, Vol.52 (Supplement), pp.O-353-O-354J-STAGE
摘要:Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies
作者:Ryo Nagaoka , Kazuto Kobayashi
来源:[J].Transactions of Japanese Society for Medical and Biological Engineering, 2014, Vol.52 (Supplement), pp.O-355-O-356J-STAGE
摘要:Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies
作者:Ryo Nagaoka , Osamu Akagawa ...
来源:[J].Transactions of Japanese Society for Medical and Biological Engineering, 2014, Vol.52 (Supplement), pp.O-331-O-332J-STAGE
摘要:Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies
作者:Ryo Nagaoka , Mototaka Arakawa ...
来源:[J].Transactions of Japanese Society for Medical and Biological Engineering, 2014, Vol.52 (Supplement), pp.O-341-O-342J-STAGE
摘要:Japan's largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies

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