Hiroyuki Kosaka
Overview
Explore the profile of Hiroyuki Kosaka including associated specialties, affiliations and a list of published articles.
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Articles
10
Citations
17
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0
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Recent Articles
1.
Kosaka H, Kubo K, Matsumoto K, Nakamura Y, Monzen H
Med Phys
. 2025 Jan;
PMID: 39871628
Background: Management of respiratory motion during radiation therapy is essential for accurate dose delivery and minimizing the risk to organs. In diagnostic imaging, respiratory monitoring is required for confirmation of...
2.
Ito T, Monzen H, Kubo K, Kosaka H, Yanagi Y, Sakai Y, et al.
Rep Pract Oncol Radiother
. 2023 Oct;
28(3):399-406.
PMID: 37795404
Background: We clarified the dose difference between the anisotropic analytical algorithm (AAA) and Acuros XB (AXB) with increasing target's air content using a virtual phantom and clinical cases. Materials And...
3.
Sakai Y, Monzen H, Takei Y, Kosaka H, Nakamura K, Yanagi Y, et al.
J Med Phys
. 2023 Aug;
48(2):189-194.
PMID: 37576099
Aims: We investigated imaging dose and noise under clinical scan conditions at multiple institutions using a simple and unified method, and demonstrated the need for diagnostic reference levels in image-guided...
4.
Watanabe S, Kono Y, Kitaguchi S, Kosaka H, Ishii K
Phys Eng Sci Med
. 2023 Jun;
46(3):1153-1162.
PMID: 37266875
We aimed to evaluate the image quality of brain computed tomography (CT) images reconstructed using deep learning-based reconstruction (DLR) in organ-based tube current modulation (OB-TCM) acquisition. An anthropomorphic head phantom...
5.
Nakamura K, Monzen H, Kubo K, Kosaka H, Ito T, Sakai Y, et al.
Phys Med Biol
. 2023 Mar;
68(10).
PMID: 36972591
The purpose of this study was to develop a new bolus (HM bolus), with tissue equivalence, transparency, reusability, and free shaping at approximately 40 °C for excellent adhesion, and to...
6.
Okuhata K, Fujita M, Nakamura K, Yanagi Y, Sakai Y, Kubo K, et al.
Cureus
. 2023 Feb;
15(1):e34287.
PMID: 36843808
Background Coronavirus disease 2019 and other viruses are transmissible by aerosols and droplets from infected persons. This study aimed to develop a portable device that can trap droplets and deactivate...
7.
Kosaka H, Tamura M, Hattori S, Monzen H
Radiat Prot Dosimetry
. 2023 Jan;
199(4):366-372.
PMID: 36617526
This study aims to measure the shielding effect of a novel tungsten rubber sheet (TRS) on the exposure of male gonads to ionizing radiation during upper abdominal and abdominal plus...
8.
Hattori S, Monzen H, Tamura M, Kosaka H, Nakamura Y, Nishimura Y
J Appl Clin Med Phys
. 2022 Jan;
23(3):e13532.
PMID: 35045212
Purpose: The efficiency of protective equipment for the brain has not been verified at the left anterior oblique (LAO) position, which is commonly used in clinical procedures. The purpose of...
9.
Watanabe S, Ichikawa K, Kawashima H, Kono Y, Kosaka H, Yamada K, et al.
Phys Med
. 2020 Jul;
76:100-108.
PMID: 32645588
Purpose: To compare computed tomography (CT) image properties between a vendor-independent image-based noise reduction technique, Image-space Noise Reduction (iNoir) and a hybrid-type iterative reconstruction technique, Adaptive Statistical Iterative Reconstruction (ASIR)....
10.
Kosaka H, Monzen H, Amano M, Tamura M, Hattori S, Kono Y, et al.
Eur J Radiol
. 2020 Jan;
124:108814.
PMID: 31945674
Purpose: We investigated whether a tungsten functional paper (TFP) shield and/or organ-based tube current modulation (TCM) can reduce the dose to the eye lens. Materials And Methods: All scans were...