Výsledky vyhledávání - "Masayuki, Kanamoto"

Akademický článek

Comparison of amide proton transfer imaging with perfusion imaging of using arterial spin-labeling for evidence of tumor invasion in glioblastoma

Autor: Takahiro Yamauchi, Ryuhei Kitai, Toshiaki Kodera, Hidetaka Arishima, Ken Matsuda, Makoto Isozaki, Shota Ishida, Yuki Matta, Masayuki Kanamoto, Hirohiko Kimura, Ken-ichiro Kikuta

Publikováno v: Interdisciplinary Neurosurgery, Vol 28, Iss , Pp 101461- (2022)

In glioblastoma, differentiation between cerebral edema and tumor infiltration is an important clinical question. Amide proton transfer (APT) and cerebral blood flow (CBF) are useful for evaluating the tumor invasion. In this case series, arterial sp

Externí odkaz: https://doaj.org/article/4c495e55897b4c30b28ec7e2b1472386

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Separating spin compartments in arterial spin labeling using delays alternating with nutation for tailored excitation (DANTE) pulse: A validation study using T 2 ‐relaxometry and application to arterial cerebral blood volume imaging

Autor: Hirohiko Kimura, Nobuyuki Kosaka, Yuki Matta, Eiji Kidoya, Tsuyoshi Matsuda, Yasuhiro Fujiwara, Naoyuki Takei, Masayuki Kanamoto, Shota Ishida

Publikováno v: Magnetic Resonance in Medicine. 87:1329-1345

Purpose To clarify the type of spin compartment in arterial spin labeling (ASL) that is eliminated by delays alternating with nutation for tailored excitation (DANTE) pulse using T2 -relaxometry, and to demonstrate the feasibility of arterial cerebra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::368cfb5e42f744ad25a20da7e0fc710f
https://doi.org/10.1002/mrm.29052

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Estimation of Cerebral Blood Flow and Arterial Transit Time From Multi-Delay Arterial Spin Labeling MRI Using a Simulation-Based Supervised Deep Neural Network

Autor: Shota Ishida, Makoto Isozaki, Yasuhiro Fujiwara, Naoyuki Takei, Masayuki Kanamoto, Hirohiko Kimura, Tetsuya Tsujikawa

Publikováno v: Journal of magnetic resonance imaging : JMRIReferences.

An inherently poor signal-to-noise ratio (SNR) causes inaccuracy and less precision in cerebral blood flow (CBF) and arterial transit time (ATT) when using arterial spin labeling (ASL). Deep neural network (DNN)-based parameter estimation can solve t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97b88de29a5ae927ef5f16b318e3b33e
https://pubmed.ncbi.nlm.nih.gov/36169654

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The Utility of Arterial Transit Time Measurement for Evaluating the Hemodynamic Perfusion State of Patients with Chronic Cerebrovascular Stenosis or Occlusive Disease: Correlative Study between MR Imaging and

Autor: Kayo, Takeuchi, Makoto, Isozaki, Yoshifumi, Higashino, Nobuyuki, Kosaka, Ken-Ichiro, Kikuta, Shota, Ishida, Masayuki, Kanamoto, Naoyuki, Takei, Hidehiko, Okazawa, Hirohiko, Kimura

Publikováno v: Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine.

To verify whether arterial transit time (ATT) mapping can correct arterial spin labeling-cerebral blood flow (ASL-CBF) values and to verify whether ATT is a parameter that correlates with positron emission tomography (PET)-oxygen extraction fraction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::3b38942748fa12a9a8452ee74e9fef87
https://pubmed.ncbi.nlm.nih.gov/35545508

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Atlas-based relaxometry and subsegment analysis of the substantia nigra pars compacta using quantitative MRI: a healthy volunteer study

Autor: Yasuhiro Fujiwara, Shota Ishida, Yuki Matta, Masayuki Kanamoto, Hirohiko Kimura

Publikováno v: The British journal of radiology. 95(1135)

Objective: Parkinson’s disease is a neurodegenerative disorder caused by neuronal cell loss in the substantia nigra pars compacta (SNpc). We aimed to perform atlas-based relaxometry using an anatomical SNpc atlas and obtain baseline values of SNpc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9478a932e581636cf47e2f280f35798b
https://pubmed.ncbi.nlm.nih.gov/35357890

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NI-17 NEW ASSESSMENT FOR FLAIR ABNORMALITY AREA OF GLIOMA USING APT IMAGING

Autor: Takahiro Yamauchi, Yuki Maatta, Masayuki Kanamoto, Katsuhide Tai, Yu Tsukinowa, Satoshi Kawajiri, Munetaka Yomo, Masamune Kidoguchi, Ayumi Akazawa, Yoshifumi Higashino, Makoto Isozkai, Hidetaka Arishima, Hirohiko Kimura, Hidehiko Okazawa, Ken-Ichiro Kikuta

Publikováno v: Neuro-Oncology Advances. 4:iii18-iii18

Background In glioma, decision of infiltrating margin in extensive FLAIR hyperintensity area around enhanced area and only FLAIR hyperintensity without enhanced is difficult. For deciding this margin, there are some useful reports using perfusion ima

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7d3d75faa099fdc5039fd799efedb68
https://doi.org/10.1093/noajnl/vdac167.068

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Separating spin compartments in arterial spin labeling using delays alternating with nutation for tailored excitation (DANTE) pulse: A validation study using T

Autor: Shota, Ishida, Hirohiko, Kimura, Naoyuki, Takei, Yasuhiro, Fujiwara, Tsuyoshi, Matsuda, Masayuki, Kanamoto, Yuki, Matta, Nobuyuki, Kosaka, Eiji, Kidoya

Publikováno v: Magnetic resonance in medicineREFERENCES. 87(3)

To clarify the type of spin compartment in arterial spin labeling (ASL) that is eliminated by delays alternating with nutation for tailored excitation (DANTE) pulse using TThe DANTE and TWhile TMicrovascular compartment signals were eliminated from t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::754aabb78c73d73a8800e2571286221d
https://pubmed.ncbi.nlm.nih.gov/34687085

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The use of combined T2-weighted and FLAIR synthetic magnetic resonance images to improve white matter region contrast: a feasibility study

Autor: Shota Ishida, Yumi Inoue, Toshiki Adachi, Masayuki Kanamoto, Hirohiko Kimura, Yasuhiro Fujiwara

Publikováno v: Radiological Physics and Technology. 12:118-125

Synthetic magnetic resonance imaging (MRI) allows the production of images with any contrast from a single scan after quantification. The combined T2-weighted image (T2WI) and fluid-attenuated inversion recovery (FLAIR) image is expected to have an i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7312adb7cd9cee19033f6758b571382
https://doi.org/10.1007/s12194-019-00498-7

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[Evaluation of Long-term Fluctuation of Geometric Distortion in MRI for Radiation Therapy Planning by Using an Automatic Analysis Tool]

Autor: Kouhei Sasamoto, Syouta Ishida, Toshiki Adachi, Masato Shimada, Masayuki Kanamoto, Hirohiko Kimura

Publikováno v: Nihon Hoshasen Gijutsu Gakkai zasshi. 76(7)

High tissue contrast in magnetic resonance imaging (MRI) allows better radiotherapy planning. However, geometric distortion in MRI induces inaccuracies affecting such planning, making it necessary to evaluate the characteristics of such geometric dis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a47cacfdd8d175707ad9900d39d9e730
https://pubmed.ncbi.nlm.nih.gov/32684563

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