Výsledky vyhledávání - "Megumi Shiraishi"

Akademický článek

3D quantitative analysis of diffusion-weighted imaging for predicting the malignant potential of intraductal papillary mucinous neoplasms of the pancreas.

Autor: Takao Igarashi¹ igarashi-t@jikei.ac.jp, Megumi Shiraishi¹, Ken Watanabe¹, Kazuyoshi Ohki¹, Shinsuke Takenaga¹, Hirokazu Ashida¹, Hiroya Ojiri¹

Publikováno v: Polish Journal of Radiology. 5/19/2021, Vol. 86, pe298-e308. 11p.

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Radiomics based on diffusion-weighted imaging for differentiation between focal-type autoimmune pancreatitis and pancreatic carcinoma

Autor: Megumi Shiraishi, Takao Igarashi, Fujioka Hiroaki, Rika Oe, Kazuyoshi Ohki, Hiroya Ojiri

Publikováno v: The British Journal of Radiology. 95

Objective: To evaluate the parameters of support vector machine (SVM) using imaging data generated from the apparent diffusion coefficient (ADC) to differentiate between focal-type autoimmune pancreatitis (f-AIP) and pancreatic ductal adenocarcinoma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1645e2a6673857b13f30922cdf1ac09
https://doi.org/10.1259/bjr.20210456

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Differentiating Rheumatoid and Psoriatic Arthritis of the Hand: Multimodality Imaging Characteristics

Autor: Hiroya Ojiri, Reina Kayama, Tadashi Tokashiki, Megumi Shiraishi, Takao Igarashi, Takeshi Fukuda

Publikováno v: RadioGraphics. 40:1339-1354

Accurate diagnosis and therapeutic intervention at an early stage is paramount for the management of rheumatoid arthritis (RA) and psoriatic arthritis (PsA), which are the two major types of inflammatory arthritis that involve the hand joints. As mor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc078e9a0c80c59e5d4362a8a0b56bfc
https://doi.org/10.1148/rg.2020200029

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Quantitative Histogram Analysis of T2-Weighted and Diffusion-Weighted Magnetic Resonance Images for Prediction of Malignant Thymic Epithelial Tumors

Autor: Rui Kano, Hiroya Ojiri, Kazuhiko Morikawa, Hisatoshi Asano, Megumi Shiraishi, Shigeki Misumi, Takao Igarashi

Publikováno v: Journal of computer assisted tomography. 45(5)

Purpose To assess the value of histogram analysis for differentiating a high-risk thymic epithelial tumor (TET) from a low-risk TET using T2-weighted images and the apparent diffusion coefficient (ADC). Methods Forty-nine patients with histopathologi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bf422ff13fdf3b20db692bf4b861abc
https://pubmed.ncbi.nlm.nih.gov/34347704

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Usefulness of texture analysis for grading pancreatic neuroendocrine tumors on contrast-enhanced computed tomography and apparent diffusion coefficient maps

Autor: Hirokazu Ashida, Takao Igarashi, Kazuyoshi Ohki, Shinsuke Takenaga, Yosuke Nozawa, Megumi Shiraishi, Hiroya Ojiri

Publikováno v: Japanese journal of radiology. 39(1)

To determine whether texture analysis of contrast-enhanced computed tomography (CECT) and apparent diffusion coefficient (ADC) maps could predict tumor grade (G1 vs G2–3) in patients with pancreatic neuroendocrine tumor (PNET). Thirty-three PNETs (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd7326ef9e5313ef5877c80e862e3751
https://pubmed.ncbi.nlm.nih.gov/32885378

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Breast magnetic resonance imaging for estimation of the tumour extent in patients with pure ductal carcinoma in situ: Comparison between full diagnostic and abbreviated protocols

Autor: Takao Igarashi, Megumi Shiraishi, Hirokazu Ashida, Tomomi Terayama, Hiroya Ojiri, Ken Watanabe

Publikováno v: European journal of radiology. 123

To evaluate the rate of concordance between pathology and preoperative breast MRI performed with an abbreviated protocol (AP) or a full diagnostic protocol (FDP) for estimation of the tumour extent in patients with pure ductal carcinoma in situ (DCIS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a935c8f8ac0907a7f0f1d37006eb91
https://pubmed.ncbi.nlm.nih.gov/31874302

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Differentiation between non-hypervascular pancreatic neuroendocrine tumour and pancreatic ductal adenocarcinoma on dynamic computed tomography and non-enhanced magnetic resonance imaging

Autor: Kazuyoshi Ohki, Megumi Shiraishi, Hirokazu Ashida, Hiroya Ojiri, Takao Igarashi, Yosuke Nozawa

Publikováno v: Polish Journal of Radiology

Purpose: To determine the differentiating features between non-hypervascular pancreatic neuroendocrine tumour (PNET) and pancreatic ductal adenocarcinoma (PDAC) on dynamic computed tomography (CT) and non-enhanced magnetic resonance imaging (MRI). Ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80c508a89d9f64e1fdc1420cc41e8afb
https://pubmed.ncbi.nlm.nih.gov/31019610

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