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Your search keyword '"Matsuo, Masayuki"' showing total 16 results
Start Over Author "Matsuo, Masayuki" Journal european journal of radiology
16 results on '"Matsuo, Masayuki"'

1. Deep-learning image reconstruction for 80-kVp pancreatic CT protocol: Comparison of image quality and pancreatic ductal adenocarcinoma visibility with hybrid-iterative reconstruction

Author

Takai, Yukiko, primary, Noda, Yoshifumi, additional, Asano, Masashi, additional, Kawai, Nobuyuki, additional, Kaga, Tetsuro, additional, Tsuchida, Yuki, additional, Miyoshi, Toshiharu, additional, Hyodo, Fuminori, additional, Kato, Hiroki, additional, and Matsuo, Masayuki, additional

Published
2023
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3. Comparison of image quality and pancreatic ductal adenocarcinoma conspicuity between the low-kVp and dual-energy CT reconstructed with deep-learning image reconstruction algorithm

Author

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

Published
2023
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5. Diffusion-weighted imaging of the abdomen using echo planar imaging with compressed SENSE: Feasibility, image quality, and ADC value evaluation

Author

Kaga, Tetsuro, primary, Noda, Yoshifumi, additional, Mori, Takayuki, additional, Kawai, Nobuyuki, additional, Takano, Hirota, additional, Kajita, Kimihiro, additional, Yoneyama, Masami, additional, Akamine, Yuta, additional, Kato, Hiroki, additional, Hyodo, Fuminori, additional, and Matsuo, Masayuki, additional

Published
2021
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11. Optimal window settings in single-source dual-energy computed tomography of the abdomen

Author

Noda, Yoshifumi, primary, Goshima, Satoshi, additional, Kozaka, Kazuto, additional, Yoneda, Norihide, additional, Mizuno, Nozomi, additional, Kato, Akiko, additional, Fujimoto, Keita, additional, Tsuji, Yusuke, additional, Miyoshi, Toshiharu, additional, Kawada, Hiroshi, additional, Kawai, Nobuyuki, additional, Tanahashi, Yukichi, additional, and Matsuo, Masayuki, additional

Published
2018
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16. Appropriate pancreatic phase image acquisition by free-breathing dynamic contrast-enhanced pancreatic MRI using stack-of-stars radial sampling and Compressed SENSE.

Author

Noda, Yoshifumi, Asano, Masashi, Kawai, Nobuyuki, Kaga, Tetsuro, Kajita, Kimihiro, Peeters, Johannes M., Ueda, Yu, Honda, Masatoshi, Takai, Yukiko, Ito, Akio, Hyodo, Fuminori, Kato, Hiroki, and Matsuo, Masayuki

Subjects
*CONTRAST-enhanced magnetic resonance imaging, *COMPRESSED sensing, *FISHER exact test, *MAGNETIC resonance imaging, *CONTRAST media
Abstract

• 4D FreeBreathing combined with Compressed SENSE was feasible in dynamic contrast-enhanced pancreatic MRI. • 4D FreeBreathing improved motion artifacts and provided diagnosable image quality as compared with eTHRIVE. • All examinations scanned by 4D FreeBreathing showed appropriate scan timing for the pancreatic phase. To evaluate the feasibility of a free-breathing sequence (4D FreeBreathing) combined with Compressed SENSE in dynamic contrast-enhanced pancreatic MRI and compare it with a breath-holding sequence (eTHRIVE). Patients who underwent pancreatic MRI, either eTHRIVE or 4D FreeBreathing, from April 2022 to November 2023 were included in this retrospective study. Two radiologists, who were unaware of the scan sequence, independently and randomly reviewed the images at the precontrast, pancreatic, portal venous, and equilibrium phases and assigned confidence scores for motion and streaking artifacts, pancreatic sharpness, and overall image quality using a 5-point scale. Furthermore, the radiologists assessed the appropriateness of the scan timing of the pancreatic phase. Mann–Whitney U and Fisher's exact tests were conducted to compare the confidence scores and adequacy of the pancreatic phase scan timing between eTHRIVE and 4D FreeBreathing. Overall, 48 patients (median age, 71 years; interquartile range, 64–77 years; 24 women) were included. Among them, 20 patients (42%) were scanned using 4D FreeBreathing. The 4D FreeBreathing showed moderate streaking artifact but improved motion artifact (P <.001–.17) at all phases. Pancreatic sharpness and overall image quality were almost comparable between two sequences (P =.17–.96). All 20 examinations in 4D FreeBreathing showed appropriate pancreatic phase images, but only 16 (57%; P <.001 for reviewer 1) and 18 (64%; P =.003 for reviewer 2) examinations showed it in eTHRIVE. The use of 4D FreeBreathing combined with Compressed SENSE was feasible in pancreatic MRI and provided appropriate pancreatic phase images in all examinations. [ABSTRACT FROM AUTHOR]

Published
2024
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