Search Results - "Funama, Y."

Usefulness of the superior orbitomeatal line without the lens included in the scan range at different tube voltage during pediatric head CT by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Kiguchi, M., Oku, T., Awai, K.

“…To compare the real time skin dosimeter values at lens between with the lens included in the scan range (orbitomeatal base line [OML]) or without the lens…”
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Iodine contrast volume reduction in preoperative transcatheter aortic valve implantation computed tomography: Comparison with 64- and 256-multidetector row computed tomography by Yoshiura, T., Masuda, T., Kobayashi, Y., Kikuhara, Y., Ishibashi, T., Nonaka, H., Oku, T., Sato, T., Funama, Y.

“…This study aimed to compare the vascular enhancement and radiation dose in preoperative transcatheter aortic valve implantation (TAVI) computed tomography (CT)…”
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Machine learning to identify lymph node metastasis from thyroid cancer in patients undergoing contrast-enhanced CT studies by Masuda, T., Nakaura, T., Funama, Y., Sugino, K., Sato, T., Yoshiura, T., Baba, Y., Awai, K.

“…We compared the diagnostic performance of morphological methods such as the major axis, the minor axis, the volume and sphericity and of machine learning with…”
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Effect of iodine concentration and body size on iodine subtraction in virtual non-contrast imaging: A phantom study by Shirasaka, T., Kojima, T., Yamane, S., Mikayama, R., Kawakubo, M., Funatsu, R., Kato, T., Ishigami, K., Funama, Y.

“…Dual-energy computed tomography (DECT) can generate virtual non-contrast (VNC) images. Herein, we sought to improve the accuracy of VNC images by identifying…”
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Reduction in radiation and contrast medium dose via optimization of low-kilovoltage CT protocols using a hybrid iterative reconstruction algorithm at 256-slice body CT: Phantom study and clinical correlation by Itatani, R, Oda, S, Utsunomiya, D, Funama, Y, Honda, K, Katahira, K, Morishita, S, Yamamura, S, Namimoto, T, Yamashita, Y

“…Aim To optimize low-kilovoltage (kV) computed tomography (CT) protocols using a hybrid iterative reconstruction (HIR) algorithm at 256-detector-row body CT…”
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Deep learning with convolutional neural network for estimation of the characterisation of coronary plaques: Validation using IB-IVUS by Masuda, T., Nakaura, T., Funama, Y., Oda, S., Okimoto, T., Sato, T., Noda, N., Yoshiura, T., Baba, Y., Arao, S., Hiratsuka, J., Awai, K.

“…Deep learning approaches have shown high diagnostic performance in image classifications, such as differentiation of malignant tumors and calcified coronary…”
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Applying patient characteristics, stent-graft selection, and pre-operative computed tomographic angiography data to a machine learning algorithm: Is endoleak prediction possible? by Masuda, T., Baba, Y., Nakaura, T., Funama, Y., Sato, T., Masuda, S., Gotanda, R., Arao, K., Imaizumi, H., Arao, S., Ono, A., Hiratsuka, J., Awai, K.

“…This study aims to predict endoleak after endovascular aneurysm repair (EVAR) using machine learning (ML) integration of patient characteristics, stent-graft…”
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Virtual magnetic resonance lumbar spine images generated from computed tomography images using conditional generative adversarial networks by Gotoh, M., Nakaura, T., Funama, Y., Morita, K., Sakabe, D., Uetani, H., Nagayama, Y., Kidoh, M., Hatemura, M., Masuda, T., Hirai, T.

“…The aim of this study was to generate virtual Magnetic resonance (MR) from computed tomography (CT) using conditional generative adversarial networks (cGAN)…”
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Dual-layer detector CT of chest, abdomen, and pelvis with a one-third iodine dose: image quality, radiation dose, and optimal monoenergetic settings by Nagayama, Y., Nakaura, T., Oda, S., Taguchi, N., Utsunomiya, D., Funama, Y., Kidoh, M., Namimoto, T., Sakabe, D., Hatemura, M., Yamashita, Y.

“…To compare the image quality and radiation dose of reduced iodine dose dual-layer detector (DL) computed tomography (CT) with those of a conventional 120 kVp…”
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Radiation dose reduction method combining the ECG-Edit function and high helical pitch in retrospectively-gated CT angiography by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Okimoto, T., Gotanda, R., Arao, K., Imaizumi, H., Arao, S., Ono, A., Hiratsuka, J., Awai, K.

“…The purpose of this study was to demonstrate that dose reduction does not compromise image quality when combining high helical pitch (HP) and the ECG-Edit…”
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Effect of injection duration on contrast enhancement during cardiac computed tomography angiography in newborns and infants by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Tahara, M., Masuda, S., Yoshiura, T., Gotanda, R., Arao, K., Imaizumi, H., Arao, S., Hiratsuka, J., Awai, K.

“…To investigate how changing the injection duration at cardiac computed tomography angiography (CCTA) affects contrast enhancement in newborns and infants…”
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Corrigendum to “Deep learning with convolutional neural network for estimation of the characterisation of coronary plaques: Validation using IB-IVUS” [Radiography 28 (2022) 61–67] by Masuda, T., Nakaura, T., Funama, Y., Oda, S., Okimoto, T., Sato, T., Noda, N., Yoshiura, T., Baba, Y., Arao, S., Hiratsuka, J., Awai, K.

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Enhancement rate of venous phase to portal venous phase computed tomography and its correlation with ultrasound elastography determination of liver fibrosis by Masuda, T., Nakaura, T., Funama, Y., Sato, T., Arataki, K., Oku, T., Yoshiura, T., Masuda, S., Gotanda, R., Arao, K., Imaizumi, H., Arao, S., Hiratsuka, J., Awai, K.

“…This study aimed to compare the correlation between the computed tomography (CT) enhancement rate of the venous to portal venous phase (VP-ER) and the…”
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Efficacy of the spiral flow generating extended tube during paediatric CCTA by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Tahara, M., Yamashita, Y., Yoshiura, T., Masuda, S., Gotanda, R., Arao, K., Imaizumi, H., Arao, S., Hiratsuka, J., Awai, K.

“…To compare the computed tomography (CT) number for paediatric cardiac computed tomography angiography (CCTA) and visualisation score of the three-dimensional…”
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Diagnostic performance of computed tomography digital subtraction angiography of the lower extremities during haemodialysis in patients with suspected peripheral artery disease by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Okimoto, T., Masuda, S., Yamashita, Y., Yoshiura, T., Noda, N., Baba, Y., Awai, K.

“…With intra-arterial digital subtraction angiography (DSA) considered as the gold standard, we compared the diagnostic value of computed tomography angiography…”
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The combined application of the contrast-to-noise index and 80 kVp for cardiac CTA scanning before atrial fibrillation ablation reduces radiation dose exposure by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Muraoka, Y., Okimoto, T., Yamashita, Y., Oku, T., Matsumoto, Y., Masuda, S., Kiguchi, M., Awai, K.

“…To compare the radiation dose, diagnostic accuracy, and the resultant ablation procedures using 80 and 120-kVp cardiac computed tomography angiography (CCTA)…”
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Influence of contrast enhancement at the contrast injection location for the arm or leg in neonatal and infant patients during cardiac computed tomography by Masuda, T., Funama, Y., Nakaura, T., Sato, T., Tahara, M., Yamashita, Y., Masuda, S., Yoshiura, T., Oku, T., Arao, S., Hiratsuka, J., Awai, K.

“…Obtaining CCTA images with optimal injection location such as the arm or leg is important to avoid the artifacts caused by the CM. This study compares the…”
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Optimal contrast medium injection protocols for the depiction of the Adamkiewicz artery using 64-detector CT angiography by Nakayama, Y, Awai, K, Yanaga, Y, Nakaura, T, Funama, Y, Hirai, T, Yamashita, Y

“…Aim To determine the optimal contrast medium injection protocol for demonstrating the Adamkiewicz artery (AKA) using 64-detector CT angiography (CTA)…”
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Detection of small pulmonary nodules on chest radiographs: efficacy of dual-energy subtraction technique using flat-panel detector chest radiography by Oda, S, Awai, K, Funama, Y, Utsunomiya, D, Yanaga, Y, Kawanaka, K, Nakaura, T, Hirai, T, Murakami, R, Nomori, H, Yamashita, Y

“…Aim To investigate the effect of a double-exposure dual-energy subtraction (DES) technique on the diagnostic performance of radiologists detecting small…”
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Abstract No. 242: Quantitative Measurement of Iodine Concentration Using Abdominal C-Arm Computed Tomography by Taguchi, K, Funama, Y, Mengxi, M, Fishman, E.K, Geschwind, J.-F.H

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