Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Katsuhiro, Ichikawa"'
Publikováno v:
Case Reports in Orthopedics, Vol 2021 (2021)
Introduction. Purely chondral injuries of the knee are relatively rare, and no consensus exists on the appropriate treatment in such cases. We describe two adolescent patients with chondral injury of the knee who were successfully treated by osteocho
Externí odkaz:
https://doaj.org/article/fed0f5ed1541446095f5533323e31dbe
Publikováno v:
Journal of Orthopaedic Science. 28:290-294
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::528cd1b5a50256782c02ffaabb956b7e
https://doi.org/10.1016/j.jos.2020.04.012
https://doi.org/10.1016/j.jos.2020.04.012
Publikováno v:
Physica Medica. 99:61-67
To reevaluate a tin filter's (TF) dose reduction effect in computed tomography (CT) using a combination of an anthropomorphic chest phantom and a rod-shaped phantom.A third-generation dual-source CT system equipped with a built-in TF was employed. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b64a7062fde43b01ca44d30fbdae1bea
https://doi.org/10.1016/j.ejmp.2022.05.006
https://doi.org/10.1016/j.ejmp.2022.05.006
Publikováno v:
Physica Medica. 95:64-72
The present study aims to evaluate TTFs of deep-learning-based image reconstruction (DLIR) and iterative reconstruction (IR) in computed tomography (CT) using a conventional task with a rod object with a diameter of 30 mm and a newly-proposed task wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e750804d44e681a2aa3ad16f871f08bd
https://doi.org/10.1016/j.ejmp.2022.01.009
https://doi.org/10.1016/j.ejmp.2022.01.009
Publikováno v:
Medical physicsREFERENCES. 49(10)
Two deep learning image reconstruction (DLIR) techniques from two different computed tomography (CT) vendors have recently been introduced into clinical practice.To characterize the noise properties of two DLIR techniques with different training meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad5171c08a0270f99c5b693adf703406
https://pubmed.ncbi.nlm.nih.gov/36047991
https://pubmed.ncbi.nlm.nih.gov/36047991
Publikováno v:
Japanese Journal of Radiological Technology. 77:255-262
Purpose To evaluate image quality for chest radiography at different radiation qualities, using phantoms with scatter fractions similar to those of lungs. Methods Two base phantoms with 10 and 4 cm thicknesses, respectively, made of a soft tissue-equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d05cefe80417df09f02284628e7cc73
https://doi.org/10.6009/jjrt.2021_jsrt_77.3.255
https://doi.org/10.6009/jjrt.2021_jsrt_77.3.255
Publikováno v:
Japanese Journal of Radiology. 39:395-403
To propose an optimization method of contrast medium injection for the split-bolus protocol based on the contrast medium pharmacokinetics and investigate the utility of the optimized split-bolus protocol in 3D CT angio-venography for laparoscopic gas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccb81ae7cc450490c62c9c0eb619c27e
https://doi.org/10.1007/s11604-020-01069-2
https://doi.org/10.1007/s11604-020-01069-2
Autor:
Hiroshi Kunitomo, Katsuhiro Ichikawa
Publikováno v:
Physica Medica. 73:105-110
Purpose The appropriate object thickness to start using anti-scatter grids (grids) has not sufficiently investigated in previous studies, and thus we rigorously investigated the effectiveness of two generally used grids with grid ratios of 6 and 10 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f974d3474264ff59153707097a4e0ae6
https://doi.org/10.1016/j.ejmp.2020.04.014
https://doi.org/10.1016/j.ejmp.2020.04.014
Publikováno v:
Physical and Engineering Sciences in Medicine. 43:557-566
This study aimed to validate the clinically demonstrated equivalency of the axial and helical scan modes (AS and HS, respectively) for head computed tomography (CT) using physical image quality measures and artifact indices (AIs). Two 64-row multi-de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9feaffca2a59b3a953cbd71987b11c4e
https://doi.org/10.1007/s13246-020-00856-5
https://doi.org/10.1007/s13246-020-00856-5
Autor:
Satoshi Asegawa, Katsuhiro Ichikawa, Masanori Sugiyama, Tamaki Matsunami, Tetsuya Hirairi, Atsushi Urikura
Publikováno v:
Japanese Journal of Radiological Technology. 76:168-176
PURPOSE A virtual monochromatic image (VMI) is acquired from two different types of polychromatic energy X-rays, not a monochromatic X-ray. The effective energy of monochromatic X-ray does not vary in passing through the patient's body. On the other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::771d90e3b552d61572473c412a41445b
https://doi.org/10.6009/jjrt.2020_jsrt_76.2.168
https://doi.org/10.6009/jjrt.2020_jsrt_76.2.168