Study of the magnets used for a mobile isocenter carbon ion gantry.

abstract：:The purpose of this study was to assess the toxicity and efficacy of multimodal approaches, including three-dimensional conformal re-irradiation, for patients with recurrent or persistent esophageal cancer after radiotherapy. Thirty-one patients with esophageal cancer treated with three-dimensional conformal re-irradi...

journal_title：Journal of radiation research

authors： Yamaguchi S,Ohguri T,Imada H,Yahara K,Moon SD,Higure A,Yamaguchi K,Yoshikawa I,Harada M,Korogi Y

更新日期：2011-01-01 00:00:00

abstract：:To assess the mutational effects of radiation on vigorously proliferating plant tissue, the mutation spectrum was analyzed with Arabidopsis seedlings using the plasmid-rescue method. Transgenic plants containing the Escherichia coli rpsL gene were irradiated with γ-rays and carbon ion beams (320-MeV (12)C(6+)), and mu...

journal_title：Journal of radiation research

authors： Yoshihara R,Nozawa S,Hase Y,Narumi I,Hidema J,Sakamoto AN

更新日期：2013-11-01 00:00:00

abstract：:This study aimed to clarify the motivations and timing of the decision to become radiation oncologists. MATERIALS AND METHODS:We conducted an online survey for new members of the Japanese Society for Radiation Oncology (JASTRO). RESULTS:The response rate was 43.3%. Data of the 79 respondents who wanted to obtain a b...

journal_title：Journal of radiation research

authors： Murakami Y,Noda SE,Hatayama Y,Maebayashi T,Jingu K,Nagata Y,Mizowaki T

更新日期：2020-09-08 00:00:00

abstract：:The multifraction regimens commonly used in conventional clinical radiotherapy are largely based on radiobiological experiments. However, no experimental reports on skin reactions focusing on inter-strain differences have displayed clinical relevance to the fractionated dose schedule. In this study, mice of inbred str...

journal_title：Journal of radiation research

authors： Ohta T,Iwakawa M,Oohira C,Noda S,Minfu Y,Goto M,Tanaka H,Harada Y,Imai T

更新日期：2004-12-01 00:00:00

abstract：:The aim of this study was to describe our initial experience with a gold flexible linear fiducial marker and to evaluate the safety and technical and clinical efficacy of stereotactic body radiotherapy using this marker for malignant liver tumors. Between July 2012 and February 2015, 18 patients underwent percutaneous...

journal_title：Journal of radiation research

authors： Ohta K,Shimohira M,Murai T,Nishimura J,Iwata H,Ogino H,Hashizume T,Shibamoto Y

更新日期：2016-03-01 00:00:00

abstract：:The aim of the study was to investigate the various effects of high linear energy transfer (LET) carbon ion (12C6+) and low LET X-ray radiation on MDA-MB-231 and MCF-7 human breast cancer cells and to explore the underlying mechanisms of radiation sensitivity. Cell proliferation, cell colony formation, cell cycle dist...

journal_title：Journal of radiation research

authors： Zhang Q,Kong Y,Yang Z,Liu Y,Liu R,Geng Y,Luo H,Zhang H,Li H,Feng S,Wang X

更新日期：2020-05-22 00:00:00

abstract：:The purpose of this study was to analyze the clinical outcomes of simultaneous modulated accelerated radiotherapy (SMART) in patients with nasopharyngeal carcinoma (NPC). A total of 97 patients who underwent SMART for NPC between August 2005 and November 2011 were evaluated. The prescribed dose was 69.9 Gy/30 fraction...

journal_title：Journal of radiation research

authors： Tang JM,Ma XM,Hou YL,Dai LY,Cao HB,Ye M,Bai YR

更新日期：2014-07-01 00:00:00

abstract：:Since December 2009, after breast-conserving surgery for Stage 0-I cancer of the left breast, 21 women with relatively pendulous breasts underwent computed tomography prone and supine simulations. The adjuvant radiotherapy was 50 Gy in 25 fractions to the left breast alone. Four plans--conventional wedged tangents and...

journal_title：Journal of radiation research

authors： Chen JL,Cheng JC,Kuo SH,Chan HM,Huang YS,Chen YH

更新日期：2013-09-01 00:00:00

abstract：:Preliminary results of the Polish epidemiology study on eye lens opacities among interventional cardiologists (ICs), based on the methodology proposed by ELDO (epidemiological studies of radio-induced cataracts in interventional cardiologists and radiologists: methodology implementation), are presented. The aim of the...

journal_title：Journal of radiation research

authors： Domienik J,Gryglak S,Jurewicz J

更新日期：2016-07-01 00:00:00

abstract：:The quality of the sublethal damage (SLD) after irradiation with high-linear energy transfer (LET) ion beams was investigated with low-LET photons. Chinese hamster V79 cells and human squamous carcinoma SAS cells were first exposed to a priming dose of different ion beams at different LETs at the Heavy Ion Medical Acc...

journal_title：Journal of radiation research

authors： Furusawa Y,Nakano-Aoki M,Matsumoto Y,Hirayama R,Kobayashi A,Konishi T

更新日期：2017-11-01 00:00:00

abstract：:We compared the tumor reoxygenation patterns in three different murine tumor cell lines after X-irradiation with those after carbon-beam irradiation using a heavy-ion medical accelerator (HIMAC) system. The tumors of the cell lines SCCVII, SCCVII-variant-1 and EMT6 on the hind legs of mice received local priming irrad...

journal_title：Journal of radiation research

authors： Oya N,Sasai K,Shibata T,Takagi T,Shibuya K,Koike S,Nojima K,Furusawa Y,Ando K,Hiraoka M

更新日期：2001-06-01 00:00:00

abstract：:When DNA is damaged by exposure to a small amount of radiation, it is repaired efficiently by innate mechanisms. However, if cellular damage is more extensive, DNA repair cannot be adequately completed. To clarify the role of the p53 gene in apoptotic tissue repair, the incidence of in-vivo radiation-induced somatic m...

journal_title：Journal of radiation research

authors： Kato F,Kakihara H,Kunugita N,Ootsuyama A,Norimura T

更新日期：2002-12-01 00:00:00

abstract：:This study was designed to elucidate the dose-response relationships for life-shortening and tumorigenic effect in the dose range below 1 Gy of gamma rays delivered during the infant period. Female B6C3F1 mice were irradiated with 0.10, 0.48 or 0.95 Gy at 7 days of age. All irradiated mice were allowed to live out the...

journal_title：Journal of radiation research

authors： Sasaki S,Fukuda N

更新日期：2006-06-01 00:00:00

abstract：:Medical diagnostic X-ray workers are one occupational group that has exposure to continuous low doses of external radiation over their working lifetimes. Current ICRP recommendations [ICRP. Recommendations of the International Commission on Radiological Protection. ICRP Publication 60. Ann ICRP 1991;21 (1-3)] state th...

journal_title：Journal of radiation research

authors： Xu XS,Zhang LA,Sun QF,Qin YC,Yu NL

更新日期：2018-03-01 00:00:00

abstract：:To analyze the biological effects of the space environment, we flew nine lines of rice seeds on the Chinese 20(th) recoverable satellite for a duration of 18 days. The same lines of seeds were also irradiated to low doses (2.0 mGy) of Carbon, or Neon or Iron ions (with different LET value of 13.3 keV/microm, 31 keV/mi...

journal_title：Journal of radiation research

authors： Wei LJ,Yang Q,Xia HM,Furusawa Y,Guan SH,Xin P,Sun YQ

更新日期：2006-11-01 00:00:00

abstract：:We evaluated the interrelationship between rectal content and intrafraction motion of the prostate. Forty seven prostate cancer patients instructed to remove their rectal gas were imaged by planning CT and MRI before radiotherapy (RT) and during RT. The total scan time was comparable to our cone-beam CT scanning and t...

journal_title：Journal of radiation research

authors： Ogino I,Kaneko T,Suzuki R,Matsui T,Takebayashi S,Inoue T,Morita S

更新日期：2011-01-01 00:00:00

abstract：:In this study, a mechanism in which low-dose hyper-radiosensitivity (HRS) is permanently removed, induced by low-dose-rate (LDR) (0.2-0.3 Gy/h for 1 h) but not by high-dose-rate priming (0.3 Gy at 40 Gy/h) was investigated. One HRS-negative cell line (NHIK 3025) and two HRS-positive cell lines (T-47D, T98G) were used....

journal_title：Journal of radiation research

authors： Edin NJ,Sandvik JA,Vollan HS,Reger K,Görlach A,Pettersen EO

更新日期：2013-11-01 00:00:00

abstract：:3D image-guided brachytherapy (3D-IGBT) has become a standard therapy for cervical cancer. However, the use of 3D-IGBT is limited in East and Southeast Asia. This study aimed to clarify the current usage patterns of 3D-IGBT for cervical cancer in East and Southeast Asia. A questionnaire-based survey was performed in 1...

journal_title：Journal of radiation research

authors： Okonogi N,Wakatsuki M,Mizuno H,Fukuda S,Cao J,Kodrat H,Lau FN,Calaguas MJ,de Los Reyes RH,Chansilpa Y,Uddin AFMK,Adylkhanov T,Cho CK,Tsegmed U,Hoang NC,Ohno T,Nakano T,Kato S,Forum for Nuclear Cooperation in Asia.

更新日期：2020-07-06 00:00:00

abstract：:This study is a subset analysis of a retrospective multicenter study performed in Japan and its purpose was to investigate the effectiveness of stereotactic body radiotherapy (SBRT) for pulmonary oligometastases from colorectal cancer. Local control (LC), freedom from further metastases, relapse-free survival and over...

journal_title：Journal of radiation research

authors： Yamamoto T,Niibe Y,Matsumoto Y,Onishi H,Aoki M,Nishikawa A,Oh RJ,Shintani T,Yahara K,Ozaki M,Manabe Y,Jingu K

更新日期：2020-11-16 00:00:00

abstract：:Coal, fly ash and bottom ash samples were taken from a 300-MWe coal-fired power plant with a daily coal consumption of 2400 tons. A high volume sampler coupled with several mesh testing sieves was used to separate fly ash samples into different size fractions. Determination of the concentrations of 40K, 238U, 226Ra, 2...

journal_title：Journal of radiation research

authors： Weng YH,Chu TC

更新日期：1992-06-01 00:00:00

abstract：:To improve treatment conformity for prostate cancer, we investigated daily applicator displacement during high-dose-rate interstitial brachytherapy (HDR-ISBT). Thirty patients treated with HDR-ISBT as monotherapy were examined. All patients received a treatment dosage of 49 Gy per 7 fractions over 4 days. For dose adm...

journal_title：Journal of radiation research

authors： Takenaka T,Yoshida K,Ueda M,Yamazaki H,Miyake S,Tanaka E,Yoshida M,Yoshimura Y,Oka T,Honda K

更新日期：2012-01-01 00:00:00

abstract：:Gated radiation therapy is a promising method for improving the dose conformality of treatments to moving targets and reducing the total volume of irradiated tissue. Target motion is of particular concern in proton beam radiotherapy, due to the finite range of proton dose deposition in tissue. Gating allows one to red...

journal_title：Journal of radiation research

authors： Sharp GC,Lu HM,Trofimov A,Tang X,Jiang SB,Turcotte J,Gierga DP,Chen GT,Hong TS

更新日期：2007-01-01 00:00:00

abstract：:The purpose of this study was to investigate the radiosensitizing effect of geldanamycin (GA), an inhibitor of heat shock protein 90, on tumour cells and normal cells. We tested the effect of a combination of GA and radiation on cell survival, PI3K/Akt-related proteins and apoptosis induction. GA sensitized tumour cel...

journal_title：Journal of radiation research

authors： Matsumoto Y,Machida H,Kubota N

更新日期：2005-06-01 00:00:00

abstract：:Tumor hypoxia and angiogenesis have been studied extensively. However, the relation between normal tissue injury and hypoxia is still unclear. In this study, we investigated the effect of hypoxia on radiation-induced late rectal injury in mice. The rectum of C57BL/6N mice was irradiated locally with a single dose of 2...

journal_title：Journal of radiation research

authors： Liu Y,Kudo K,Abe Y,Aoki M,Hu DL,Kijima H,Nakane A

更新日期：2008-05-01 00:00:00

abstract：:The purpose of this review was to evaluate the impact of epidermal growth factor receptor (EGFR) mutation status on disease recurrence in patients treated with chemoradiotherapy (CRT) for locally advanced non-small cell lung cancer (NSCLC). A literature search was conducted and a total of three studies were analyzed. ...

journal_title：Journal of radiation research

authors： Ochiai S,Nomoto Y,Watanabe Y,Yamashita Y,Toyomasu Y,Kawamura T,Takada A,Noriko,Sakuma H

更新日期：2016-09-01 00:00:00

abstract：:We evaluated the efficacy and safety of stereotactic body radiation therapy (SBRT) for patients with head and neck tumors. From April 2005 through April 2008, 34 patients with head and neck tumors were treated with CyberKnife SBRT. Twenty-one of them had prior radiotherapy. Treatment sites were orbit (n = 7), cervical...

journal_title：Journal of radiation research

authors： Kodani N,Yamazaki H,Tsubokura T,Shiomi H,Kobayashi K,Nishimura T,Aibe N,Ikeno H,Nishimura T

更新日期：2011-01-01 00:00:00

abstract：:The aim of the present study was to examine the excess relative risk for leukemia mortality and all cancers, except leukemia, among Hiroshima atomic-bomb survivors by applying ABS93D and ABS2000D. Particular attention was given to any difference in the neutron-dose estimates between the two dosimetry systems. The stud...

journal_title：Journal of radiation research

authors： Katayama H,Matsuura M,Endo S,Hoshi M,Ohtaki M,Hayakawa N

更新日期：2002-03-01 00:00:00

abstract：:The current study retrospectively analyzed the results of radiotherapy for clinically localized sebaceous carcinoma of the eyelid.We reviewed records of 83 patients with histologically confirmed sebaceous carcinoma who were treated radiotherapeutically between 1983 and 2015. Sixty-five patients (78%) were initially tr...

journal_title：Journal of radiation research

authors： Takagawa Y,Tamaki W,Suzuki S,Inaba K,Murakami N,Takahashi K,Igaki H,Nakayama Y,Shigematsu N,Itami J

更新日期：2019-10-23 00:00:00

abstract：:We examined the use of the mouse Pc-3 ESTR (expanded simple tandem repeat) locus and 72 human microsatellite loci as potentially sensitive biomarkers for mutagenic exposures to germ cells in mice and humans respectively. In the mouse work, we treated male mice with TCDD (2, 3, 7, 8-tetrachlorodibenzo-p-dioxin; a chemi...

journal_title：Journal of radiation research

authors： Ryo H,Nakajima H,Nomura T

更新日期：2006-01-01 00:00:00

abstract：:Immediately after X-irradiation, monocytic cells can express the gene for interleukin (IL)-1beta, which enhances inflammation and contributes to radioprotection in mice. In order to analyze the mechanism(s) for the immediate-early induction of IL-1beta after X-irradiation at 20 Gy in cultured murine macrophages, we ex...

journal_title：Journal of radiation research

authors： Ishihara H,Tanaka I,Wan H,Cheeramakara C

更新日期：2003-06-01 00:00:00