Ryo Murayama
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Explore the profile of Ryo Murayama including associated specialties, affiliations and a list of published articles.
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Articles
11
Citations
14
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0
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Recent Articles
1.
Sato K, Hisatomi E, Tanaka S, Goto N, Murayama R, Takayama Y, et al.
Jpn J Radiol
. 2025 Feb;
PMID: 39937400
Purpose: To confirm the concept that gallbladder fossa nodularity (GBFN) as observe in patients with alcoholic liver disease (ALD) develops in a biphasic fashion as the cirrhotic process progresses, by...
2.
Yamashita K, Murayama R, Itoyama M, Kikuchi K, Kusunoki M, Kuga D, et al.
Neuroradiology
. 2025 Jan;
67(2):291-298.
PMID: 39831960
Background And Purpose: The cortical high-flow sign has been more commonly reported in oligodendroglioma, IDH-mutant and 1p/19q-codeleted (ODG IDHm-codel) compared to diffuse glioma with IDH-wildtype or astrocytoma, IDH-mutant. Besides tumor...
3.
Hisatomi E, Tanaka S, Sato K, Goto N, Murayama R, Arima H, et al.
Eur J Radiol
. 2024 Dec;
182:111845.
PMID: 39616947
Objectives: To clarify the heterogeneous development of liver fibrosis in patients with chronic hepatitis C (CHC) using extracellular volume fraction (ECV) map obtained from routine clinical CT data. Methods: Between...
4.
Sato K, Tanaka S, Urakawa H, Murayama R, Hisatomi E, Takayama Y, et al.
Glob Health Med
. 2024 Jul;
6(3):183-189.
PMID: 38947406
The purpose of this study is to further verify the concept utilizing signal intensity on hepatobiliary phase (HBP) of gadoxetate-enhanced MRI and extracellular volume fraction (ECV) calculated from CT data....
5.
Fujita N, Ushijima Y, Ishimatsu K, Okamoto D, Wada N, Takao S, et al.
Abdom Radiol (NY)
. 2024 Jun;
49(7):2559-2560.
PMID: 38913139
No abstract available.
6.
Takayama Y, Sato K, Tanaka S, Murayama R, Jingu R, Yoshimitsu K
Abdom Radiol (NY)
. 2024 May;
49(10):3450-3463.
PMID: 38755452
Purpose: To evaluate the effectiveness of deep learning-based reconstruction (DLR) in improving image quality and tumor detectability of isovoxel high-resolution breath-hold fat-suppressed T1-weighted imaging (HR-BH-FS-T1WI) in the hepatobiliary phase (HBP)...
7.
Fujita N, Ushijima Y, Ishimatsu K, Okamoto D, Wada N, Takao S, et al.
Abdom Radiol (NY)
. 2024 Feb;
49(5):1467-1478.
PMID: 38360959
Purpose: To elucidate how precisely microvascular invasion (MVI) in hepatocellular carcinoma (HCC) can be predicted using multiparametric assessment of gadoxetic acid-enhanced MRI. Methods: In this retrospective single-center study, patients who...
8.
Okamoto D, Ushijima Y, Fujita N, Ishimatsu K, Murayama R, Itoyama M, et al.
Minim Invasive Ther Allied Technol
. 2024 Feb;
33(3):171-175.
PMID: 38315057
Introduction: The purpose is to clarify the safety and clinical contribution of computed tomography (CT)-guided percutaneous needle-biopsy for patients with cervical spine lesion. Material And Methods: Between June 2015 and...
9.
Takayama Y, Sato K, Tanaka S, Murayama R, Goto N, Yoshimitsu K
World J Radiol
. 2024 Jan;
15(12):338-349.
PMID: 38179202
Background: It has been reported that deep learning-based reconstruction (DLR) can reduce image noise and artifacts, thereby improving the signal-to-noise ratio and image sharpness. However, no previous studies have evaluated...
10.
Ushijima Y, Okamoto D, Fujita N, Ishimatsu K, Wada N, Takao S, et al.
Diagn Interv Radiol
. 2024 Jan;
30(2):117-123.
PMID: 38164892
Purpose: This retrospective study evaluates the impact of preoperative lipiodol marking on the outcomes of computed tomography (CT)-guided cryoablation for histologically diagnosed sporadic renal cell carcinoma (RCC). Methods: This study...