Results 91 to 100 of about 118,192 (299)

Correcting rotational error in rectal cancer radiation therapy: Can planning target volume margins be safely reduced?

Journal of Medical Radiation Sciences, Volume 69, Issue 4, Page 473-483, December 2022., 2022
To evaluate the magnitude and resulting impact of rotational error in rectal cancer patients, and to investigate the feasibility of planning target volume (PTV) margin reduction to improve organs‐at‐risk (OAR) sparing. Abstract Introduction The magnitude and impact of rotational error is unclear in rectal cancer radiation therapy.
Vivian Seah, Kylie Dundas, Felicity Hudson, Yolanda Surjan, Rebecca Bartlett, Rebecca Ko, Sandie Smith, Sankar Arumugam, Meredith Johnston, Karen Wong, Mark Lee   +10 more
wiley   +1 more source

Dosimetrie eines Blutbestrahlungsgerätes [PDF]

Strahlentherapie und Onkologie, 1998
Blood and blood products are irradiated to avoid the graft-versus-host disease (GVHD) in immunosuppressed patients and to destroy tumor cells during the intra-operative autotransfusion in tumor surgery. For that purpose more and more dedicated gamma irradiators are used.
Marius Treutwein, Manfred Herbst, Ludwig Bogner, Josef Scherer, Petra Härtl   +4 more
openaire   +3 more sources

Evaluation of the effect of metal stents on dose perturbation in the carbon beam irradiation field

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Propose Carbon ion therapy is indicated for cases in which stents have been inserted, such as bile ducts, but the effect of metal stents on carbon ion therapy is unclear. In this study, the dose perturbation of carbon ion therapy caused by metallic bile duct stents was evaluated by dosimetry. Materials and methods Five different types of metal
Yuya Miyasaka, Tetsuya Ishizawa, Yoshihito Nawa, Hikaru Souda, Shohei Kawashiro, Hongbo Chai, Miyu Ishizawa, Hiraku Sato, Takeo Iwai   +8 more
wiley   +1 more source

Acute toxicity and patient‐reported outcomes in anal canal cancer: results of a pilot study

Journal of Medical Radiation Sciences, Volume 69, Issue 4, Page 484-491, December 2022., 2022
After reaching their maximum at the end of treatment, the majority of toxicity and patient reported outcomes (PROs) items approached baseline levels by 3 months post treatment. The results of this study suggest that PROs are an important complementary tool to Common Terminology Criteria for Adverse Effects (CTCAE) and provide greater understanding of ...
Elizabeth Brown, Emma Le Cornu, Thanh Bui, Anne Bernard, Tao Mai, Jennifer Harvey   +5 more
wiley   +1 more source

The Multigaussian method: a new approach to multichannel radiochromic film dosimetry [PDF]

, 2018
The main objective of multichannel radiochromic film dosimetry methods is to correct, or at least mitigate, spatial heterogeneities in the film-scanner response, especially variations in the active layer thickness. To this end, films can also be scanned prior to irradiation.
arxiv   +1 more source

Calibration strategies for use of the nanoDot OSLD in CT applications. [PDF]

, 2019
Aluminum oxide based optically stimulated luminescent dosimeters (OSLD) have been recognized as a useful dosimeter for measuring CT dose, particularly for patient dose measurements.
Alvarez, Paola, Cody, Dianna, Court, Laurence, Followill, David, Kry, Stephen F, McNitt-Gray, Michael, Scarboro, Sarah B, Stingo, Francesco C, Zhang, Di   +8 more
core  

Commissioning of Halcyon enhanced leaf model in the Eclipse treatment planning system: Focus on simple slit fields and VMAT dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The dual‐layer multileaf collimator (MLC) in Halcyon adds complexities to the dose calculation process owing to the variability of dosimetric characteristics with leaf motion. Recently, an enhanced leaf model (ELM) was developed to refine the MLC model in the Eclipse treatment planning system. This study investigates the performance of
Ryohei Miyasaka, Mari Shirai, Mitsunobu Igari, Yume Kojima, Yuki Kozawa, Toru Kawachi, Ryusuke Hara   +6 more
wiley   +1 more source

Pencil‐beam scanning proton therapy for the treatment of glomus jugulare tumours

Journal of Medical Radiation Sciences, Volume 69, Issue 4, Page 456-462, December 2022., 2022
The rare locally destructive glomus jugulare tumours could be treated using pencil‐beam scanning proton therapy (an alternative to surgery). Proton therapy provides good local control and acceptable toxicity. This paper reports treatment outcomes, acute and early late toxicities of 12 patients with glomus jugulare tumours.
Jiří Kubeš, Vladimír Vondráček, Michal Andrlik, Matěj Navrátil, Silvia Sláviková, Daniel Klika, Alexandra Haas, Kateřina Dědečková, Kateřina Kopečková, Barbora Ondrová, Eliška Rotnáglová, Štěpán Vinakurau, Alexander Grebenyuk, Jozef Rosina   +13 more
wiley   +1 more source

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

Three‐dimensional printer use in the Australian and New Zealand radiation therapy setting

Journal of Medical Radiation Sciences, Volume 69, Issue 4, Page 492-501, December 2022., 2022
This cross‐sectional survey aimed to established a baseline of 3D printer and product use within Australian and New Zealand radiation therapy departments. Survey response rate was 100% with 22.3% of departments reporting ownership of one or more 3D printers, and 34 departments purchasing 3D printed products from an external provider.
Christine E Albantow, Savannah J Brown
wiley   +1 more source