Results 251 to 260 of about 83,753 (298)

Techniques for adaptive prostate radiotherapy

Physica Medica, 2016
Variations in the position and shape of the prostate make accurate setup and treatment challenging. Adaptive radiation therapy (ART) techniques seek to alter the treatment plan, at one or more points throughout the treatment course, in response to changes in patient anatomy observed between planning and pre-treatment images.
Nevin, McVicar, I Antoniu, Popescu, Emily, Heath   +2 more
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Re-optimization in adaptive radiotherapy

Physics in Medicine and Biology, 2002
In routine clinical practice, radiotherapy treatment planning is performed based on the patient CT images obtained during the patient setup procedure. However, the actual delivered dose to the patient might be different from the planned dose because of various reasons such as patient motion. Under such situations, it is desirable to modify the original
Chuan, Wu, Robert, Jeraj, Gustavo H, Olivera, Thomas R, Mackie   +3 more
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Adaptive Radiotherapy for Lung Cancer

Seminars in Radiation Oncology, 2010
Lung cancer radiation therapy (RT) is associated with complex geometrical uncertainties, such as respiratory motion, differential baseline shifts between primary tumor and involved lymph nodes, and anatomical changes due to treatment response. Generous safety margins required to account for these uncertainties limit the potential of dose escalation to ...
Jan-Jakob, Sonke, José, Belderbos
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Adapting radiotherapy to hypoxic tumours

Physics in Medicine and Biology, 2006
In the current work, the concepts of biologically adapted radiotherapy of hypoxic tumours in a framework encompassing functional tumour imaging, tumour control predictions, inverse treatment planning and intensity modulated radiotherapy (IMRT) were presented.
Eirik, Malinen, Aste, Søvik, Dimitre, Hristov, Øyvind S, Bruland, Dag Rune, Olsen   +4 more
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Adaptive Management of Cervical Cancer Radiotherapy

Seminars in Radiation Oncology, 2010
Since the breakthrough 10 years ago with concomitant radio-chemotherapy, substantial progress in the treatment of locally advanced cervical cancer has been lacking. Radiotherapy continues to be the cornerstone in the treatment of this disease and now shows much potential for progress, as image guidance of both external beam radiation therapy and ...
Tanderup, Kari, Georg, Dietmar, Pötter, Richard, Kirisits, Christian, Grau, Cai, Lindegaard, Jacob C   +5 more
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Personalizing radiotherapy with adaptive radiotherapy: Interest and challenges

Cancer/Radiothérapie
Adaptive radiotherapy (ART) is a recent development in radiotherapy technology and treatment personalization that allows treatment to be tailored to the daily anatomical changes of patients. While it was until recently only performed "offline", i.e.
Olivier Riou, Jessica Prunaretty, Morgan Michalet   +2 more
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Adaptive Management of Bladder Cancer Radiotherapy

Seminars in Radiation Oncology, 2010
Recently, the bladder preserving potential of radiotherapy for invasive bladder cancer (bladder RT) has been recognized, and there is a renewed interest to improve bladder RT. The pivotal problem in bladder RT is caused by organ motion: without image-guided radiotherapy (IGRT), generous margins in the range of 2-3 cm have to be applied to account for ...
Floris, Pos, Peter, Remeijer
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Image-Guided/Adaptive Radiotherapy

2006
Adaptive radiotherapy system is designed to systematically manage treatment feedback, planning, and adjustment in response to temporal variations occurring during the radiotherapy course. A temporal variation process, as well as its subprocess, can be classified as a stationary random process or a nonstationary random process.
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[Head and neck adaptive radiotherapy: A tool for the detection of patients requiring adaptive radiotherapy].

Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique, 2015
PURPOSE:The purpose of this work was to implement a simple dosimetric alert tool in a retrospective study for six patients suffering from head and neck cancer to detect when a patient might require an adaptive radiotherapy.MATERIALS AND METHODS:The dosimetric tool generates a 3D cartography of two dosimetric complementary information: a dose variation ...
Huger, S., Graff, P., Marchesi, V., Vogin, G., Guinement, L., Serre, A.A., Peiffert, D.   +6 more
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[Head and neck adaptive radiotherapy].

Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique, 2013
Onboard volumetric imaging systems can provide accurate data of the patient's anatomy during a course of head and neck radiotherapy making it possible to assess the actual delivered dose and to evaluate the dosimetric impact of complex daily positioning variations and gradual anatomic changes such as geometric variations of tumors and normal tissues or
P, Graff, S, Huger, N, Kirby, J, Pouliot
openaire   +1 more source