Výsledky vyhledávání - "Masaru Nitta"

[Evaluation of the Image Registration Program for Portal Images Using CR and DRR Images in Radiation Therapy]

Autor: Takeyuki Hashimoto, Kyoichi Kato, Kenji Hasezawa, Kazuma Nakaseko, Masaru Nitta, Hiroyuki Shinohara, Hiroyuki Watanabe

Publikováno v: Nihon Hoshasen Gijutsu Gakkai zasshi. 74(8)

In this study, computer simulations and experiments were used to verify the accuracy of a two-dimensional image registration program (program) for portal images that we previously developed. The program used a computed radiography cassette system and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a3b0c193217795dbcd37dc6e5697992
https://pubmed.ncbi.nlm.nih.gov/30122742

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Effect of Changing into Slippers on the Pollution Situation in the Nuclear Medicine Management District

Autor: Yoshimasa Takahashi, Yasuo Nakazawa, Tadashi Takase, Masayuki Akiyama, Makoto Miyashita, Masaru Nitta, Kyoichi Kato

Publikováno v: Japanese Journal of Radiological Technology. 68:103-110

Changing into slippers when entering the nuclear medicine management district prevented pollution expansion. Accidents involving patients falling occurred in university facilities. It was thought that changing slippers was the cause. The pollution si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b2953b0ee8cadc330725eef2e307e30
https://doi.org/10.6009/jjrt.2012_jsrt_68.1.103

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[Failure analysis of medical linear accelerator with reliability analyses]

Autor: Kyouichi Kato, Hideki Ishida, Yasuo Nakazawa, Toshio Take, Tsugunori Iwai, Ken Zakimi, Masaru Nitta, Mitsuyoshi Kato, Hiroyuki Watanabe

Publikováno v: Nihon Hoshasen Gijutsu Gakkai zasshi. 70(12)

We analyzed a number of cases about the Linac troubles in our hospital and have examined the effect of preventive maintenance with Weibull analysis and exponential distribution from April 2001 to March 2012. The total failure by irradiation disabled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9b17485c1d118f148c7c9fee32ff431
https://pubmed.ncbi.nlm.nih.gov/25672450

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CT Scanners with Automatic Focus Alteration Capability

Autor: Hajime Saitou, Emi Watanabe, Yasuo Nakazawa, Masaru Nitta, Kyouichi Katou, Tomonari Funata

Publikováno v: Japanese Journal of Radiological Technology. 58:679-685

Heat accumulation in X-ray tubes results in disarrangement of focus owing to heat expansion of the anode. CT scanners with automatic focus alteration capability have been developed to counteract this problem. We compared CT scanners with and without

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe00b22cdd39e41f9ad4e29fbc693584
https://doi.org/10.6009/jjrt.kj00001364427

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