Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Fujio, Araki"'
Autor:
Mie Ishii, Sae Shinohara, Noriko Murakami, Rie Ishii, Mai Nakamura, Keiichi Shida, Megumi Maeda, Rumi Okamoto, Toshikazu Hatada, Fujio Araki, Yoshiharu Higashida
Publikováno v:
Nihon Nyugan Kenshin Gakkaishi (Journal of Japan Association of Breast Cancer Screening). 31:103-110
Autor:
Yoshiharu Higashida, Noriko Murakami, Megumi Maeda, Keiichi Shida, Mie Ishii, Rie Ishii, Toshikazu Hatada, Mai Nakamura, Rumi Okamoto, Fujio Araki, Sae Shinohara
Publikováno v:
Journal of Medical Imaging and Health Informatics. 11:2695-2700
We constructed a mammography database of 807 Japanese women and 2,772 images obtained using five commercial full-field digital mammography (FFDM) devices at four different facilities. Five types of mammography devices fabricated by four manufacturers
Autor:
Nobuyuki Kanematsu, Fujio Araki, Yoshie Kodera, Tosiaki Miyati, Takeji Sakae, Junji Shiraishi, Yoshikazu Uchiyama, Taiga Yamaya
Publikováno v:
Radiological Physics and Technology. 16:8-9
Autor:
Ryuki Tanabe, Fujio Araki
Publikováno v:
Physica Medica. 84:198-204
Purpose To determine the surface dose of a water phantom using a semiconductor detector for diagnostic kilovoltage x-ray beams. Methods An AGMS-DM+ semiconductor detector was calibrated in terms of air kerma measured with an ionization chamber. Air k
Autor:
Fujio Araki, Chihiro Nakatake
Publikováno v:
Physica Medica. 82:144-149
Purpose This study aimed to investigate the energy response of a radiophotoluminescent glass dosimeter (RGD) for diagnostic kilovoltage x-ray beams by Monte Carlo (MC) calculations and measurements. Methods The uniformity and reproducibility of GD-35
Publikováno v:
Physica Medica. 80:65-74
Purpose This study investigated the impact of lung density on the isolated lung tumor dose for volumetric modulated arc therapy (VMAT) in an inline magnetic resonance linear accelerator (MR-Linac) using the Monte Carlo (MC) simulation. Methods CT ima
Autor:
Ryuki Tanabe, Fujio Araki
Publikováno v:
Physica Medica. 77:48-53
Purpose This study aims to investigate the relationship between backscatter factors and Al-half-value-layers (Al-HVL) by making the quality index (QI) a parameter for diagnostic kilovoltage x-ray beams. Methods Backscatter factors, Bw, for x-ray flue
Publikováno v:
Physica Medica. 74:100-109
Purpose This study aims to investigate the impact of the cavity on the sinus wall dose by comparing dose distributions with and without the sinus under magnetic fields using Monte Carlo calculations. Methods A water phantom containing a sinus cavity
Publikováno v:
Physica Medica. 70:153-160
Purpose We investigated the impact of transverse magnetic fields on the dose response of a nanoDot optically stimulated luminescence dosimetry (OSLD) in megavoltage photon beams. Methods The nanoDot OSLD response was calculated via Monte Carlo (MC) s
Publikováno v:
Medical Dosimetry. 45:179-185
We investigated the impact of the transverse magnetic fields of 0.35 T and 1.5 T on the dose distributions for a 6 MV beam, by using a thorax phantom with a lung tumor. First, the dose distributions in the magnetic flux densities of 0 T, 0.35 T, and