Results 261 to 270 of about 1,178,335 (287)

Part I: Out‐of‐field dose mapping for 6X and 6X‐flattening‐filter‐free beams on the TrueBeam for extended distances

Medical Physics (Lancaster), 2019
PURPOSE With increasing cancer treatment success rates, many patients go on to live long, productive lives following recovery. Therefore, minimizing potential side effects due to dose outside the treated field is becoming a significant consideration in ...
K. Wijesooriya
semanticscholar   +1 more source

Out-of-field doses in radiotherapy: Input to epidemiological studies and dose-risk models

Physica Medica, 2017
Out-of-field doses in radiotherapy have been increasingly studied in recent years because of the generally improved survival of patients who have received radiotherapy as part of their treatment for cancer and their subsequent risk of a second malignancy.
openaire   +2 more sources

Assessment of Out-of-Field Doses in Radiotherapy of Brain Lesions in Children

International Journal of Radiation Oncology*Biology*Physics, 2011
To characterize the out-of-field doses in pediatric radiotherapy and to identify simple methods by which out-of-field dose might be minimized, with a view to reducing the risk of secondary cancers.With the aim of characterizing the peripheral doses under different treatment conditions, the dose measurements in an anthropomorphic child phantom were ...
Michael L, Taylor, Tomas, Kron, Rick D, Franich   +2 more
openaire   +2 more sources

Out-of-field dose measurements in radiotherapy

2011
This thesis describes the results from measurements of the out-of-field dose in radiotherapy. The dose outside the treatment volume has been determined in a water phantom and an anthropomorphic phantom. Measurements were performed with linac photons, passively delivered protons, scanned protons, passively delivered carbon ions as well as scanned carbon
openaire   +1 more source

Out-of-field dose measurements for radiotherapy of brain tumours in paediatric patients

Physica Medica, 2014
It has been known for many years that out-of-field radiation doses to normal tissues may be associated with an increased risk of secondary cancers. Paediatric patients are of particular concern due to their possible longer life expectancy and higher organ radiosensitivities compared with adult patients and higher organ doses because of their smaller ...
L. Stolarczyk, M. Majer, N. Adamek, E. Gora, D. Kabat, Ž. Knežević, M. Liszka, P. Olko, S. Miljanić, R. Harrison   +9 more
  +6 more sources

Low dose out-of-field radiotherapy, part 3: Qualitative and quantitative impact of scattered out-of-field radiation on MDA-MB-231 cell lines

Cancer/Radiothérapie, 2017
Patients who undergo external beam radiotherapy are at risk of developing second tumours due to scattered radiation outside the path of the primary beam. The aim of this study was to experimentally determine the in vitro radiobiological effects of scattered radiation in cells located outside the primary photon beam and to compare this to the effects ...
K. Zaleska, W.M. Suchorska, A. Kowalik, M. Kruszyna, W. Jackowiak, A. Skrobala, M. Skorska, J. Malicki   +7 more
openaire   +2 more sources

Experimental evaluation of out-of-field dose for different high-energy electron beams and applicators used in external beam radiotherapy

Radiation Physics and Chemistry, 2023
O. Gul
semanticscholar   +1 more source

Dual detector system for measuring out-of-field neutron dose in proton therapy

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), 2009
A novel technique for separating the out-of-field proton and neutron dose is presented. The technique combines measurements from special pin diodes sensitive to the non ionizing energy losses of protons and neutrons in silicon and standard clinical absorbed dose measurements. Preliminary testing shows good agreement with results from a GEANT4 study.
A.L. Ziebell, S.J. Dowdell, M.I. Reinhard, B. Clasie, A. Wroe, R.W. Schulte, M.L. Lerch, M. Petaseca, V. Perevertaylo, I.E. Anokhin, A.B. Rosenfeld   +10 more
openaire   +1 more source

Sources of out-of-field dose in MRgRT: an inter-comparison of measured and Monaco treatment planning system doses for the Elekta Unity MR-linac

Physical and Engineering Sciences in Medicine, 2021
J. Baines, M. Powers, Glen Newman
semanticscholar   +1 more source

Out-of-field measurements and simulations of a proton pencil beam in a wide range of dose rates using a Timepix3 detector: Dose rate, flux and LET.

Physica medica (Testo stampato), 2023
C. Oancea, C. Granja, L. Marek, J. Jakubek, J. Šolc, Elisabeth Bodenstein, S. Gantz, J. Pawelke, J. Pivec   +8 more
semanticscholar   +1 more source