Results 21 to 30 of about 8,581 (234)

Physical Modelling of Proton and Heavy Ion Radiation using Geant4 [PDF]

open access: yesEPJ Web of Conferences, 2012
Protons and heavy ion particles are considered to be ideal particles for use in external beam radiotherapy due to superior properties of the dose distribution that results when these particles are incident externally and due to their relative biological ...
Douglass M., Bezak E.
doaj   +2 more sources

Estimate of Heavy Ion Radiotherapy Candidates in Gunma Prefecture: 2. Annual Cancer Incidence in Gunma Prefecture and Projected Number of Heavy Ion Radiotherapy Candidates

open access: yesKitakanto Medical Journal, 2005
【背景・目的】 群馬大学で現在計画中の重粒子線治療施設には巨額の費用がかかるので, その妥当性を評価するために, 見込まれる利用者数の信頼できる推計値が必要である. 【対象・方法】 本研究では, 群馬県地域がん登録データを用いて群馬県内のがん罹患数を部位別に推計し, その値に第1報で算出した部位別重粒子線治療適応率を掛け, 合計して重粒子線治療の適応となる患者数を求めた. 【結果】 県内だけでも年間655人のがん患者が重粒子線治療の適応となるという推計値を得た. 【結語】 これまでの重粒子線治療例数が少なく, 地域がん登録率が低いために, この推計値の信頼性は十分ではないが, 計画中の小型重粒子線治療施設に見合った需要があることを支持する結果であった.
Minato Nakazawa
exaly   +4 more sources

Quantum scalpel project for advanced heavy-ion radiotherapy

open access: yesQuantum scalpel project for advanced heavy-ion radiotherapy, 2017
Quantum scalpel project for advanced heavy-ion radiotherapy K. Noda1 1 National Institute of Radiological Sciences, QST, Chiba, Chiba, Japan \nContent The HIMAC clinical study has been conducted with a carbon-ion beam since June 1994. The total number of patients treated as of 2017 was in excess of 10,000.
Mizushima, Kota   +67 more
openaire   +2 more sources

Carbon ion radiotherapy for recurrent ameloblastoma: A case report

open access: yesSAGE Open Medical Case Reports, 2022
Ameloblastoma is a kind of benign, odontogenic tumor of epithelial origin, and surgery is mainstay treatment method; however, recurrence is common, and usually the treatment for recurrence is still surgery.
Yihe Zhang   +9 more
doaj   +1 more source

Radioactivity and Space Range of Ultra-Low-Activity for in vivo Off-line PET Verification of Proton and Carbon Ion Beam—A Phantom Study

open access: yesFrontiers in Public Health, 2021
Purpose: The radioactivity induced by proton and heavy ion beam belongs to the ultra-low-activity (ULA). Therefore, the radioactivity and space range of commercial off-line positron emission tomography (PET) acquisition based on ULA should be evaluated ...
Fuquan Zhang   +15 more
doaj   +1 more source

MiR-526b-3p enhances sensitivity of head and neck squamous cell carcinoma cells to radiotherapy via suppressing exosomal LAMP3-mediated autophagy

open access: yesAutoimmunity, 2023
Lysosomal associated membrane protein 3 (LAMP3) has been reported to be a tumour promoter in multiple cancer types by modulating tumour cell autophagy. However, the potential mechanism of LAMP3 in radio-resistance of head and neck squamous cell carcinoma
Huixiang Lu   +5 more
doaj   +1 more source

ROS- and Radiation Source-Dependent Modulation of Leukocyte Adhesion to Primary Microvascular Endothelial Cells

open access: yesCells, 2021
Anti-inflammatory effects of low-dose irradiation often follow a non-linear dose–effect relationship. These characteristics were also described for the modulation of leukocyte adhesion to endothelial cells.
Denise Eckert   +8 more
doaj   +1 more source

A Comparative Study of Two In Vivo PET Verification Methods in Clinical Cases

open access: yesFrontiers in Oncology, 2021
PurposePositron emission tomography (PET) range verification is an important method that can help improve the confidence in proton therapy for clinical applications.
Junyu Zhang   +24 more
doaj   +1 more source

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