Výsledky vyhledávání - "Toshiharu, Miyoshi"

Unenhanced abdominal low-dose CT reconstructed with deep learning-based image reconstruction: image quality and anatomical structure depiction

Autor: Tetsuro Kaga, Yoshifumi Noda, Takayuki Mori, Nobuyuki Kawai, Toshiharu Miyoshi, Fuminori Hyodo, Hiroki Kato, Masayuki Matsuo

Publikováno v: Japanese Journal of Radiology. 40:703-711

Purpose To evaluate the utility of deep learning-based image reconstruction (DLIR) algorithm in unenhanced abdominal low-dose CT (LDCT). Materials and methods Two patient groups were included in this prospective study: 58 consecutive patients who und

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef90413584fcf93690b5ab4f6741ad19
https://doi.org/10.1007/s11604-022-01259-0

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Radiological Arterial Anatomy in Mature Microminipigs as a Pre-clinical Research Model in Interventional Radiology

Autor: Hiroshi, Kawada, Shinichi, Shoda, Toshiharu, Miyoshi, Masaki, Takasu, Yukichi, Tanahashi, Ryota, Iwasaki, Shoma, Nagata, Nobuyuki, Kawai, Yoshifumi, Noda, Satoshi, Goshima, Fuminori, Hyodo, Takashi, Mori, Masayuki, Matsuo

Publikováno v: CardioVascular and Interventional Radiology. 45:705-708

To define the radiological arterial anatomy in mature microminipigs as a pre-clinical research animal model in interventional radiology.Five female microminipigs (weighing 20.9 ± 2.9 kg) were used in this study. Under general anesthesia, computed to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b749a8f0af48e47fe7fcd8e5ab6e7ac
https://doi.org/10.1007/s00270-022-03087-1

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Deep-learning image-reconstruction algorithm for dual-energy CT angiography with reduced iodine dose: preliminary results

Autor: Fuminori Hyodo, Yoshifumi Noda, T Kawamura, Hiroki Kato, Masayuki Matsuo, Toshiharu Miyoshi, Fumihiko Nakamura, Nobuyuki Kawai, Tetsuro Kaga

Publikováno v: Clinical Radiology. 77:e138-e146

To evaluate the computed tomography (CT) attenuation values, background noise, arterial depiction, and image quality in whole-body dual-energy CT angiography (DECTA) at 40 keV with a reduced iodine dose using deep-learning image reconstruction (DLIR)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcda85595349ca45f0b4774cb08b250c
https://doi.org/10.1016/j.crad.2021.10.014

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Akademický článek

Surface Muscle Segmentation Using 3D U-Net Based on Selective Voxel Patch Generation in Whole-Body CT Images

Autor: Naoki Kamiya, Ami Oshima, Xiangrong Zhou, Hiroki Kato, Takeshi Hara, Toshiharu Miyoshi, Masayuki Matsuo, Hiroshi Fujita

Publikováno v: Applied Sciences, Vol 10, Iss 13, p 4477 (2020)

This study aimed to develop and validate an automated segmentation method for surface muscles using a three-dimensional (3D) U-Net based on selective voxel patches from whole-body computed tomography (CT) images. Our method defined a voxel patch (VP)

Externí odkaz: https://doaj.org/article/09b56049a604488183436add86732387

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Comparison of image quality and pancreatic ductal adenocarcinoma conspicuity between the low-kVp and dual-energy CT reconstructed with deep-learning image reconstruction algorithm

Autor: Yoshifumi Noda, Yukiko Takai, Masashi Asano, Nao Yamada, Takuya Seko, Nobuyuki Kawai, Tetsuro Kaga, Toshiharu Miyoshi, Fuminori Hyodo, Hiroki Kato, Masayuki Matsuo

Publikováno v: European journal of radiology. 159

To compare the image quality and conspicuity of pancreatic ductal adenocarcinoma (PDAC) between the low-kVp and dual-energy pancreatic protocol CT reconstructed with deep-learning image reconstruction (DLIR).A cohort of 111 consecutive patients (medi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::488c3e6c3ab2a2187d360167ca7000a4
https://pubmed.ncbi.nlm.nih.gov/36603479

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Optimized Bolus Threshold for Dual-Energy CT Angiography with Monoenergetic Images: A Randomized Clinical Trial

Autor: Takuma Ishihara, Nobuyuki Kawai, Toshiharu Miyoshi, Fuminori Hyodo, Fumihiko Nakamura, Avinash Kambadakone, Ryosuke Suzuki, Yoshifumi Noda, Masayuki Matsuo

Publikováno v: Radiology. 300:615-623

Background The bolus-tracking technique from single-energy CT has been applied to dual-energy CT (DECT) without optimization or validation. Further optimization is imperative because of a paucity of literature and differences in the attenuation profi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5da5c331d7c8ade45c544fb4780e914
https://doi.org/10.1148/radiol.2021210102

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Radiation and iodine dose reduced thoraco-abdomino-pelvic dual-energy CT at 40 keV reconstructed with deep learning image reconstruction

Autor: Yoshifumi Noda, Nobuyuki Kawai, Tomotaka Kawamura, Akikazu Kobori, Rena Miyase, Ken Iwashima, Tetsuro Kaga, Toshiharu Miyoshi, Fuminori Hyodo, Hiroki Kato, Masayuki Matsuo

Publikováno v: The British journal of radiology. 95(1134)

Objective To evaluate the feasibility of a simultaneous reduction of radiation and iodine doses in dual-energy thoraco-abdomino-pelvic CT reconstructed with deep learning image reconstruction (DLIR). Methods: Thoraco-abdomino-pelvic CT was prospectiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c27942371b7e9e7f4d97179c638e2bd
https://pubmed.ncbi.nlm.nih.gov/35230135

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Optimized scan delay for late hepatic arterial or pancreatic parenchymal phase in dynamic contrast-enhanced computed tomography with bolus-tracking method

Autor: Tetsuro Kaga, Nobuyuki Kawai, Fuminori Hyodo, Takuma Ishihara, Masayuki Matsuo, Yoshiki Tsuboi, Toshiharu Miyoshi, Yoshifumi Noda

Publikováno v: Br J Radiol

Objectives: To determine the optimal scan delay corresponding to individual hemodynamic status for pancreatic parenchymal phase in dynamic contrast-enhanced CT of the abdomen. Methods: One hundred and fourteen patients were included in this retrospec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9194ca16ac15643144882947bd0370f2
https://pubmed.ncbi.nlm.nih.gov/33956484

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Deep learning image reconstruction algorithm for pancreatic protocol dual-energy computed tomography: image quality and quantification of iodine concentration

Autor: Hiroki Kato, Fumihiko Nakamura, Nobuyuki Kawai, Takayuki Mori, Shoma Nagata, Ryosuke Suzuki, Yoshifumi Noda, Fuminori Hyodo, Toshiharu Miyoshi, Masayuki Matsuo, Fumiya Kitahara

Publikováno v: European radiology. 32(1)

To evaluate the image quality and iodine concentration (IC) measurements in pancreatic protocol dual-energy computed tomography (DECT) reconstructed using deep learning image reconstruction (DLIR) and compare them with those of images reconstructed u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8a689d1771cb77fd37059326dc7b94d
https://pubmed.ncbi.nlm.nih.gov/34131785

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Advantages and disadvantages of single-source dual-energy whole-body CT angiography with 50% reduced iodine dose at 40 keV reconstruction

Autor: Noriyuki Yasuda, Hiroshi Kawada, Fuminori Hyodo, Toshiharu Miyoshi, Fumihiko Nakamura, Yoshifumi Noda, Nobuyuki Kawai, Masayuki Matsuo

Publikováno v: Br J Radiol

Objectives: To assess the feasibility of whole-body dual-energy computed tomographic angiography (DECTA) at 40 keV with 50% reduced iodine dose protocol. Methods: Whole-body CTA was performed in 65 patients; 31 of these patients underwent 120 kVp sin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e40f73f55febaa3914f1008323bc62f7
https://pubmed.ncbi.nlm.nih.gov/33617294

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