Results 1 to 10 of about 4,548,445 (364)

CT-Based Quantification of Prostate Volume Change After LHRH-Agonist Androgen Deprivation: A Prospective, Three-Reader Study for Radiotherapy Planning [PDF]

open access: goldLife
Introduction: ADT is routinely combined with radiotherapy (RT) for intermediate- and high-risk prostate cancer. While prostate shrinkage may facilitate planning, prospective CT-based, patient-level estimates over short, workflow-relevant intervals are ...
Nicolás Feltes Benítez   +9 more
doaj   +4 more sources

Robust radiotherapy planning [PDF]

open access: yesPhysics in Medicine & Biology, 2018
Motion and uncertainty in radiotherapy is traditionally handled via margins. The clinical target volume (CTV) is expanded to a larger planning target volume (PTV), which is irradiated to the prescribed dose. However, the PTV concept has several limitations, especially in proton therapy. Therefore, robust and probabilistic optimization methods have been
Jan Unkelbach   +14 more
openaire   +4 more sources

PLANNING NATIONAL RADIOTHERAPY SERVICES [PDF]

open access: yesFrontiers in Oncology, 2014
Countries, states and island nations often need forward planning of their radiotherapy services driven by different motives. Countries without radiotherapy services sponsor patients to receive radiotherapy abroad.
Eduardo eRosenblatt
doaj   +3 more sources

Response to "in regard to "Tran A, Zhang J, Woods K, Yu V, Nguyen D, Gustafson G, Rosen L, Sheng K. Treatment planning comparison of IMPT, VMAT and 4π radiotherapy for prostate cases"". [PDF]

open access: gold, 2018
In regard to our recently published paper entitled "Treatment planning comparison of IMPT, VMAT and 4π radiotherapy for prostate cases", a question was raised whether "4π" was used appropriately to describe the non-coplanar planning and delivery space ...
Sheng, Ke
core   +3 more sources

4D-CT strain analysis for biomechanical characterization of COPD in patients undergoing radiotherapy planning: an exploratory study [PDF]

open access: yesFrontiers in Medicine
BackgroundChronic obstructive pulmonary disease (COPD) is characterized by progressive airflow limitation and altered pulmonary biomechanics. While conventional spirometry provides global functional information, it cannot assess regional heterogeneity ...
Qi Dai   +7 more
doaj   +2 more sources

The prototype of EPID-based in vivo dose verification for VMAT treatments in patients with prostate cancer

open access: yesNowotwory, 2023
INTRODUCTION: The volumetric modulated arc therapy technique (VMAT) is now widely used in radiotherapy. Verifica­tion of the dose delivered to the patient is performed prior to the treatment (pre-treatment mode).
Krzysztof Ślosarek   +4 more
doaj   +1 more source

Lung volume irradiation procedures in patients with pneumonia during COVID-19 infection – physical aspects of treatment planning and dosimetry

open access: yesNowotwory, 2021
INTRODUCTION: The paper presents an original, used in our Institute, method of lung volume irradiation in patients with pneumonia during COVID-19 infection.
Krzysztof Ślosarek   +9 more
doaj   +1 more source

Static-junction craniospinal irradiation: verification of daily dose and long-term treatment results

open access: yesNowotwory, 2021
INTRODUCTION: The study was performed to evaluate the repeatability and effectiveness of the static-junctions image guided (SJIG) method of craniospinal irradiation. MATERIAL AND METHODS: An analysis of 40 treatment plans was performed.
Aleksandra Napieralska   +3 more
doaj   +1 more source

Repeatability of MRI for radiotherapy planning for pelvic, brain, and head and neck malignancies

open access: yesFrontiers in Physics, 2022
Objectives: The objective of this study was to assess the repeatability of MRI for the purpose of radiotherapy treatment planning by considering the difference in registering MRI to MRI compared to registering CT and MRI.Methods: Fifty patients ...
Monique Y. Heinke   +9 more
doaj   +1 more source

The choice of optimal radiotherapy technique for locally advanced maxillary carcinoma using 3d treatment planning system [PDF]

open access: yesVojnosanitetski Pregled, 2004
Aim. To compare the isodose distribution of three radiotherapy techniques for locally advanced maxillary sinus carcinoma and analyze the potential of three-dimensional (3D) conformal radiotherapy planning in order to determine the optimal technique for ...
Mileusnić Dušan
doaj   +1 more source

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