Results 61 to 70 of about 12,952 (199)
Feasibility of MV CBCT-based treatment planning for urgent radiation therapy: dosimetric accuracy of MV CBCT-based dose calculations. [PDF]
Unlike scheduled radiotherapy treatments, treatment planning time and resources are limited for emergency treatments. Consequently, plans are often simple 2D image-based treatments that lag behind technical capabilities available for nonurgent ...
Fogh, Shannon E +4 more
core +1 more source
Abstract Background Merging two radiation oncology information systems (ROISs) is often necessary due to system changes or hospital integrations. ROIS integration is a high‐risk procedure, that requires clear procedural guidelines and comprehensive QA methods to ensure safe practice.
ByongYong Yi +3 more
wiley +1 more source
A survey of the Australasian clinical medical physics and biomedical engineering workforce [PDF]
A survey of the medical physics and biomedical engineering workforce was carried out in 2006. 495 positions(equivalent to 478 equivalent full time (EFT) positions) were captured by the survey.
Round, W. Howell
core +2 more sources
Abstract Background Helical TomoTherapy provides highly conformal dose distributions for breast irradiation but is limited by extensive low‐dose spillage (“low‐dose bath”), contributing to increased integral dose and potential long‐term toxicities. Complete blocks can suppress low‐dose spread, but at the cost of prolonged treatment times on legacy ...
Chih‐Chieh Chang +2 more
wiley +1 more source
Ji-An Liang,1,2,* Po-Chang Lee,3,* Chun-Ping Ku,3,* William Tzu-Liang Chen,2,3,* Chih-Yuan Chung,4 Yu-Cheng Kuo,1,2 Szu-Hsien Chou,5 Chia-Chin Li,6 Chun-Ru Chien1,2,6 1Department of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan;
Liang JA +8 more
doaj
Difference in performance between 3D and 4D CBCT for lung imaging: a dose and image quality analysis. [PDF]
The study was to describe and to compare the performance of 3D and 4D CBCT imaging modalities by measuring and analyzing the delivered dose and the image quality. The 3D (Chest) and 4D (Symmetry) CBCT Elekta XVI lung IGRT protocols were analyzed.
AAPM +33 more
core +1 more source
Abstract Background Image‐guided particle therapy (IGPT) has significantly advanced in recent years, particularly in the context of proton therapy. However, imaging solutions for carbon‐ion radiotherapy (C‐ion RT) remain limited. Purpose This study introduces sliding‐gantry cone‐beam computed tomography (CBCT) and dual‐panel digital radiography (DR ...
Yixiao Guo +7 more
wiley +1 more source
GPU-based ultra-fast direct aperture optimization for online adaptive radiation therapy
Online adaptive radiation therapy (ART) has great promise to significantly reduce normal tissue toxicity and/or improve tumor control through real-time treatment adaptations based on the current patient anatomy.
Bazaraa M +21 more
core +1 more source
Evaluation of inter- and intrafractional motion of liver tumors using interstitial markers and implantable electromagnetic radiotransmitters in the context of image-guided radiotherapy (IGRT) – the ESMERALDA trial [PDF]
Background: With the development of more conformal and precise radiation techniques such as Intensity-Modulated Radiotherapy (IMRT), Stereotactic Body Radiotherapy (SBRT) and Image-Guided Radiotherapy (IGRT), patients with hepatic tumors could be treated
Bendl, Rolf +6 more
core +2 more sources
Abstract Purpose This study systematically quantifies the effects of five variables—respiratory cycle, tumor size, and motion amplitudes in the superior‐inferior (SI), anterior‐posterior (AP), and left‐right (LR) directions—on the registration accuracy between four‐dimensional computed tomography (4D CT) and four‐dimensional cone‐beam CT (4D CBCT ...
Qiaoyan Jing +6 more
wiley +1 more source

