Výsledky vyhledávání - "Takuya Nishimoto"

Akademický článek

Contrast enhancement efficacy of iodinated contrast media: Effect of molecular structure on contrast enhancement

Autor: Kuniharu Imai, Mitsuru Ikeda, Yoshiki Satoh, Keisuke Fujii, Chiyo Kawaura, Takuya Nishimoto, Masaki Mori

Publikováno v: European Journal of Radiology Open, Vol 5, Iss , Pp 183-188 (2018)

Purpose: To investigate the contrast enhancement in DSA images based on the X-ray absorption characteristics of iodinated contrast media. Methods: We have derived a new formula of predicting the pixel value ratio of two different contrast media and d

Externí odkaz: https://doaj.org/article/8bcd76280f4843e1a7c92dadbc1930d9

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Relationship between Dilution Magnification of Non-Ionic Iodinated Contrast Medium and Amplification Effect of Radiation Dose

Autor: Kuniharu Imai, Kento Takeda, Keisuke Fujii, Chiyo Kawaura, Takuya Nishimoto, Masaki Mori, Yuki Yamamoto, Takashi Izumi

Publikováno v: Journal of Neuroendovascular Therapy. 16:586-592

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::735848235ddf2931d1df9e120741e280
https://doi.org/10.5797/jnet.oa.2022-0041

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Contrast enhancement efficacy of iodinated contrast media: Effect of molecular structure on contrast enhancement

Autor: Chiyo Kawaura, Yoshiki Satoh, Masaki Mori, Keisuke Fujii, Takuya Nishimoto, Mitsuru Ikeda, Kuniharu Imai

Publikováno v: European Journal of Radiology Open
European Journal of Radiology Open, Vol 5, Iss, Pp 183-188 (2018)

Highlights • We derived a new formula for comparing the contrast enhancement efficacy. • Theoretical value agrees with actual value for each combination of contrast media. • The contrast enhancement is affected by molecular structure of contras

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b8f6948e2885ef4ecb6612ce1736a04
https://doi.org/10.1016/j.ejro.2018.09.005

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Kidney Tumor Segmentation Using 3D U-nets for Masking and Labeling

Autor: Kosuke Kojo, Tsutomu Nakagawa, Yuichi Ito, Weizhong Chou, Hideki Kakeya, Takahiro Kojima, Takuya Nishimoto, Kensaku Mori, Toshitaka Ishiguro

Publikováno v: Submissions to the 2019 Kidney Tumor Segmentation Challenge: KiTS19.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9ba12d7797a0ba9ef65a19b33f57c7b
https://doi.org/10.24926/548719.025

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Detection of alpha radionuclides in air from patients during Ra-223 alpha radionuclide therapy

Autor: Takuya Nishimoto, Seiichi Yamamoto, Shinji Abe, Masato Yamashita, Naotoshi Fujita, Hiroshi Kameyama, Katsuhiko Kato

Publikováno v: Scientific Reports
Scientific Reports, Vol 8, Iss 1, Pp 1-6 (2018)

Ra-223 has recently been introduced to alpha radionuclide therapy. According to the decay scheme of Ra-223, an inert gas, Rn-219 is released from patients during alpha radionuclide therapy and its daughter radionuclides may accumulate around the pati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b2538dba2c89de34aeb8549d3f1b24c
http://europepmc.org/articles/PMC6054680

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Polyphonic Pitch Estimation and Instrument Identification by Joint Modeling of Sustained and Attack Sounds

Autor: Jun Wu, Emmanuel Vincent, Nobutaka Ono, Takuya Nishimoto, Shigeki Sagayama, Stanislaw A. Raczynski

Publikováno v: IEEE Journal of Selected Topics in Signal Processing
IEEE Journal of Selected Topics in Signal Processing, 2011, 5 (6), pp.1124-1132
IEEE Journal of Selected Topics in Signal Processing, IEEE, 2011, 5 (6), pp.1124-1132

International audience; Polyphonic pitch estimation and musical instrument identification are some of the most challenging tasks in the field of Music Information Retrieval (MIR). While existing approaches have focused on the modeling of harmonic par

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdf888929f48ec4ef4d4c9c0e69921df
https://doi.org/10.1109/jstsp.2011.2158064

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Specmurt Analysis of Polyphonic Music Signals

Autor: Hirokazu Kameoka, Shigeki Sagayama, Takuya Nishimoto, Shin Saito, K. Takahashi

Publikováno v: IEEE Transactions on Audio, Speech, and Language Processing. 16:639-650

This paper introduces a new music signal processing method to extract multiple fundamental frequencies, which we call specmurt analysis. In contrast with cepstrum which is the inverse Fourier transform of log-scaled power spectrum with linear frequen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e27b9fbe8a107f74ff41bb36c30edda
https://doi.org/10.1109/tasl.2007.912998

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A Multipitch Analyzer Based on Harmonic Temporal Structured Clustering

Autor: Hirokazu Kameoka, Shigeki Sagayama, Takuya Nishimoto

Publikováno v: IEEE Transactions on Audio, Speech and Language Processing. 15:982-994

This paper proposes a multipitch analyzer called the harmonic temporal structured clustering (HTC) method, that jointly estimates pitch, intensity, onset, duration, etc., of each underlying source in a multipitch audio signal. HTC decomposes the ener

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba6dac5178671235d469896b831cddb5
https://doi.org/10.1109/tasl.2006.885248

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