Výsledky vyhledávání - "Takafumi Emoto"

Akademický článek

Basal septal perforator vein mimicking the 'late iodine enhancement' in delayed phase cardiac CT for myocardial scar assessment

Autor: Masafumi Kidoh, MD, Seitaro Oda, MD, Daisuke Utsunomiya, MD, Takafumi Emoto, RT, Takeshi Nakaura, MD, Yasunori Nagayama, MD, Masahiro Yamamoto, MD, Kenji Sakamoto, MD, Eiichiro Yamamoto, MD, Koichi Kaikita, MD, Kenichi Tsujita, MD, Yasuyuki Yamashita, MD

Publikováno v: Radiology Case Reports, Vol 14, Iss 5, Pp 588-590 (2019)

Delayed-phase cardiac CT is a useful tool for scar detection, based on differences in the volume of distribution of iodine. Although it covers the entire heart, provides uniform, high isotropic spatial resolution, and therefore may be useful for dete

Externí odkaz: https://doaj.org/article/5975ac59f6e54e0da0e9c7faa436f14a

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Cardiac MRI–derived Extracellular Volume Fraction versus Myocardium-to-Lumen R1 Ratio at Postcontrast T1 Mapping for Detecting Cardiac Amyloidosis

Autor: Masafumi Kidoh, Seitaro Oda, Seiji Takashio, Yawara Kawano, Hidetaka Hayashi, Kosuke Morita, Takafumi Emoto, Shinsuke Shigematsu, Fumihiro Yoshimura, Takeshi Nakaura, Yasunori Nagayama, Masao Matsuoka, Mitsuharu Ueda, Kenichi Tsujita, Toshinori Hirai

Publikováno v: Radiol Cardiothorac Imaging

PURPOSE: To evaluate the diagnostic performance of myocardium-to-lumen R1 (1/T1) ratio on postcontrast T1 maps for the detection of cardiac amyloidosis in a large patient sample. MATERIALS AND METHODS: This retrospective study included consecutive pa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf4f740be31d1c0fe6a407433d125335
https://europepmc.org/articles/PMC10141336/

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Deep Learning–based Reconstruction for Lower-Dose Pediatric CT: Technical Principles, Image Characteristics, and Clinical Implementations

Autor: Takeshi Nakaura, Seitaro Oda, Daisuke Sakabe, Yoshinori Funama, Yasunori Nagayama, Toshinori Hirai, Hiroyuki Uetani, Makoto Goto, Masafumi Kidoh, Takafumi Emoto

Publikováno v: RadioGraphics. 41:1936-1953

Optimizing the CT acquisition parameters to obtain diagnostic image quality at the lowest possible radiation dose is crucial in the radiosensitive pediatric population. The image quality of low-dose CT can be severely degraded by increased image nois

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a4589d62d4b144e6b816332cabcad55
https://doi.org/10.1148/rg.2021210105

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Lung-Optimized Deep-Learning-Based Reconstruction for Ultralow-Dose CT

Autor: Makoto Goto, Yasunori Nagayama, Daisuke Sakabe, Takafumi Emoto, Masafumi Kidoh, Seitaro Oda, Takeshi Nakaura, Narumi Taguchi, Yoshinori Funama, Sentaro Takada, Ryutaro Uchimura, Hidetaka Hayashi, Masahiro Hatemura, Koichi Kawanaka, Toshinori Hirai

Publikováno v: Academic radiology.

To evaluate the image properties of lung-specialized deep-learning-based reconstruction (DLR) and its applicability in ultralow-dose CT (ULDCT) relative to hybrid- (HIR) and model-based iterative-reconstructions (MBIR).An anthropomorphic chest phanto

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adcb7c9ac0d86b9ee51831e25696d5a4
https://pubmed.ncbi.nlm.nih.gov/35738988

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Metal Artifact Reduction in Head CT Performed for Patients with Deep Brain Stimulation Devices: Effectiveness of a Single-Energy Metal Artifact Reduction Algorithm

Autor: Seitaro Oda, Y. Yamashita, Shota Tanoue, Osamu Ikeda, Takeshi Nakaura, Daisuke Sakabe, Masafumi Kidoh, Ako Sasao, Takafumi Emoto, Yasunori Nagayama, Hiroyuki Uetani, Kazumichi Yamada

Publikováno v: AJNR Am J Neuroradiol

BACKGROUND AND PURPOSE: Deep brain stimulation electrodes induce massive artifacts on CT images, deteriorating the diagnostic value of examinations. We aimed to investigate the usefulness and potential limitations of a single-energy metal artifact re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caee1aa58d77e86c13febfeef3d5b0b1
https://doi.org/10.3174/ajnr.a6375

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Radiation dose optimization potential of deep learning-based reconstruction for multiphase hepatic CT: A clinical and phantom study

Autor: Yasunori Nagayama, Makoto Goto, Daisuke Sakabe, Takafumi Emoto, Shinsuke Shigematsu, Narumi Taguchi, Natsuki Maruyama, Sentaro Takada, Ryutaro Uchimura, Hidetaka Hayashi, Masafumi Kidoh, Seitaro Oda, Takeshi Nakaura, Yoshinori Funama, Masahiro Hatemura, Toshinori Hirai

Publikováno v: European journal of radiology. 151

This clinical and phantom study aimed to evaluate the impact of deep learning-based reconstruction (DLR) on image quality and its radiation dose optimization capability for multiphase hepatic CT relative to hybrid iterative reconstruction (HIR).Task-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe420a01889cc178ef309261117587c3
https://pubmed.ncbi.nlm.nih.gov/35381567

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Assessment of Diffuse Ventricular Fibrosis in Atrial Fibrillation Using Cardiac CT-Derived Myocardial Extracellular Volume Fraction

Autor: Eiichiro Yamamoto, Seitaro Oda, Satoshi Araki, Yasunori Nagayama, Hisanori Kanazawa, Masafumi Kidoh, Akira Sasao, Taihei Inoue, Kenichi Tsujita, Seiji Takashio, RT Takafumi Emoto, Takeshi Nakaura, Yoshinori Funama, Koichi Kaikita, Osamu Ikeda, So Ikebe

Publikováno v: JACC: Clinical Electrophysiology. 6:1573-1575

In patients with atrial fibrillation (AF), diffuse left ventricular (LV) fibrosis may occur as a result of AF-induced or -mediated cardiomyopathy (AF-CM). It is believed that AF-CM is triggered in part due to tachycardia, irregular rhythm, dyssynchro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e06ad29c2749a087e2618bce81a47a85
https://doi.org/10.1016/j.jacep.2020.06.007

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