Results 21 to 30 of about 42,443 (305)

Dose agreement analysis of treatment planning system-calculated doses and markus chamber-measured doses in the near-surface region for breast cancer patients' conformal treatment plans

Journal of Medical Physics, 2022
Background: Surface/skin dose measurement is one of the most challenging tasks for clinical dosimetry in radiotherapy and comparison with almost all the commercially available treatment planning systems (TPSs) brings a significant variation with the ...
Garima Gaur, Raja Paramjeet Singh Banipal, Pardeep Garg, Om Prakash Gurjar, Gurpreet Kaur, Sheetal Sachdeva, Romikant Grover, Manraj Singh Kang, Vinod Kumar Dangwal   +8 more
doaj   +1 more source

Primary radiotherapy in progressive optic nerve sheath meningiomas: a long-term follow-up study [PDF]

, 2010
Background/aims: To report the outcome of primary radiotherapy in patients with progressive optic nerve sheath meningioma (ONSM). Methods: The clinical records of all patients were reviewed in a retrospective, observational, multicentre study.
Blank, L., Geskus, R., Mourits, M., Nowak, P., Rootman, J., Saeed, P., Selva-Nayagam, D., Weis, E., Wolbers, J.   +8 more
core   +5 more sources

Assessment of Treatment Plan Quality between Flattening Filter and Flattening Filter Free Photon Beam for Carcinoma of the Esophagus with IMRT Technique [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: As compared to the flattened photon beam, removing the flattening filter (FF) from the head of a gantry decreases the average energy of the photon beam and increases the dose rate, leading to an impact on the quality of treatment plans ...
Dinesh Kumar Saroj, Suresh Yadav, Neetu Paliwal, Subhas Haldar, Amol Jagtap, Arvind Kumar   +5 more
doaj   +1 more source

Patterns of CT lung injury and toxicity after stereotactic radiotherapy delivered with helical tomotherapy in early stage medically inoperable NSCLC [PDF]

, 2015
To evaluate toxicity and patterns of radiologic lung injury on CT images after hypofractionated image-guided stereotactic body radiotherapy (SBRT) delivered with helical tomotherapy (HT) in medically early stage inoperable non-small-cell lung cancer ...
Agolli, Linda, Arcangeli, S, Bracci, S, Dognini, Jessica, Donato, Vittorio, Lopergolo, M. G, Migliorino, M. R, Monaco, Alessia, Portalone, L, Pressello, M. C   +9 more
core   +1 more source

UNCONVENTIONAL FRACTIONATION RADIOTHERAPY REGIMENS IN TREATMENT OF INOPERABLE LUNG CANCER

Сибирский онкологический журнал, 2019
The purpose of the study was to compare the efficacy and toxicity of hypofractionated versus hyperfractionated radiotherapy in patients with inoperable lung cancer.Material and Methods.
D. V. Gogolin, I. A. Gulidov, K. E. Medvedeva, Y. A. Ragulin, Y. S. Mardinsky, I. N. Ivanova, L. V. Kursova, I. I. Kotuhov, A. Y. Buksha   +8 more
doaj   +1 more source

Functional image-based radiotherapy planning for non-small cell lung cancer: a simulation study [PDF]

, 2009
Background and purpose: To investigate the incorporation of data from single-photon emission computed tomography (SPECT) or hyperpolarized helium-3 magnetic resonance imaging (He-3-MRI) into intensity-modulated radiotherapy (IMRT) planning for non-small ...
Bates, E.L., Bragg, C.M., Hatton, M.Q.F., Ireland, R.H., Wild, J.M.   +4 more
core   +1 more source

Different meaning of the mean heart dose between 3D-CRT and IMRT for breast cancer radiotherapy

Frontiers in Oncology, 2023
BackgroundPrevious studies in 2D and in 3D conformal radiotherapy concludes that the maximal heart distance and the mean heart dose (MHD) are considered predictive of late cardiac toxicities.
Jessica Prunaretty, Jessica Prunaretty, Celine Bourgier, Celine Bourgier, Celine Bourgier, Sophie Gourgou, Claire Lemanski, Claire Lemanski, David Azria, David Azria, David Azria, Pascal Fenoglietto, Pascal Fenoglietto   +12 more
doaj   +1 more source

Comparative evaluation of a novel, moderately hypofractionated radiation protocol in 56 dogs with symptomatic intracranial neoplasia [PDF]

, 2018
BACKGROUND: Use of strongly hypofractionated radiation treatments in dogs with intracranial neoplasia did not improve outcomes and yielded increased rates of toxicosis.
Bentley, Bhatti, Brearley, Gladwish, Griffin, Hansen, International Commission on Radiation Units and Measurements, International Commission on Radiation Units and Measurements, International Commission on Radiation Units and Measurements, Kent, Keyerleber, Keyerleber, Ladue, Lawrence, Lipsitz, Macdonald, Marcinowska, Rock, Rodenas, Rohrer Bley, Rohrer Bley, Rohrer Bley, Rohrer Bley, Ruben, Stockham, Theon, Thomson, Treggiari, Turrel, Wolff, Young, Zwingenberger   +31 more
core   +3 more sources

Dosimetric Evaluation of Commercially Available Flat vs. Self-Produced 3D-Conformal Silicone Boluses for the Head and Neck Region

Frontiers in Oncology, 2022
BackgroundBoluses are routinely used in radiotherapy to modify surface doses. Nevertheless, considerable dose discrepancies may occur in some cases due to fit inaccuracy of commercially available standard flat boluses.
Stephan Pollmann, André Toussaint, Michael Flentje, Sonja Wegener, Victor Lewitzki   +4 more
doaj   +1 more source

Improving plan quality and consistency by standardization of dose constraints in prostate cancer patients treated with CyberKnife. [PDF]

, 2013
Treatment plans for prostate cancer patients undergoing stereotactic body radiation therapy (SBRT) are often challenging due to the proximity of organs at risk.
Carrara, Mauro, Descovich, Martina, Gottschalk, Alexander R, Morlino, Sara, Nash, Marc B, Pignoli, Emanuele, Pinnaduwage, Dilini S, Pouliot, Jean, Roach, Mack, Saltiel, Daniel, Valdagni, Riccardo   +10 more
core   +2 more sources