Results 281 to 290 of about 354,551 (319)
Some of the next articles are maybe not open access.
Different Styles of Image-Guided Radiotherapy
Seminars in Radiation Oncology, 2007To account for geometric uncertainties during radiotherapy, safety margins are applied. In many cases, these margins overlap organs at risk, thereby limiting dose escalation. The aim of image-guided radiotherapy is to improve the accuracy by imaging tumors and critical structures on the machine just before irradiation.
Van Herk, Marcel, van Herk, Marcel
openaire +2 more sources
Physics and Imaging in Radiation Oncology
Highlights • Magnetic resonance-guided adaptive radiotherapy benefits from a plan library.• Plans meeting criteria increased to 92%, up from 74% with the conventional method.• Treatment time decreased from 55.1 to 34.9 min compared with fully adaptive ...
Deqi Chen +6 more
semanticscholar +1 more source
Highlights • Magnetic resonance-guided adaptive radiotherapy benefits from a plan library.• Plans meeting criteria increased to 92%, up from 74% with the conventional method.• Treatment time decreased from 55.1 to 34.9 min compared with fully adaptive ...
Deqi Chen +6 more
semanticscholar +1 more source
Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique, 2008
Recent advances in radiation oncology are based on improvement in dose distribution thanks to IMRT and improvement in target definition through new diagnostic imaging such as spectroscopic or functional MRI or PET. However, anatomic variations may occur during treatment decreasing the benefit of such optimization.
R, de Crevoisier +7 more
openaire +3 more sources
Recent advances in radiation oncology are based on improvement in dose distribution thanks to IMRT and improvement in target definition through new diagnostic imaging such as spectroscopic or functional MRI or PET. However, anatomic variations may occur during treatment decreasing the benefit of such optimization.
R, de Crevoisier +7 more
openaire +3 more sources
A review of image-guided radiotherapy
Radiological Physics and Technology, 2009Image-guided radiotherapy (IGRT) is in the midst of a strong development and implementation cycle, stimulated by pioneering work performed in Japan. We present a review of the rationale, technology, and methodology of image guidance, as well as an overview of current work in IGRT at the Massachusetts General Hospital. The technology is rapidly evolving,
George T Y, Chen +2 more
openaire +2 more sources
Cancer radiotherapie : journal de la Societe francaise de radiotherapie oncologique, 2017
The IGRT is described in its various equipment and implementation. IGRT can be based either on ionizing radiation generating 2D imaging (MV or kV) or 3D imaging (CBCT or MV-CT) or on non-ionizing radiation (ultrasound, optical imaging, MRI or radiofrequency). Adaptive radiation therapy is then presented in its principles of implementation. The function
R, de Crevoisier +5 more
openaire +1 more source
The IGRT is described in its various equipment and implementation. IGRT can be based either on ionizing radiation generating 2D imaging (MV or kV) or 3D imaging (CBCT or MV-CT) or on non-ionizing radiation (ultrasound, optical imaging, MRI or radiofrequency). Adaptive radiation therapy is then presented in its principles of implementation. The function
R, de Crevoisier +5 more
openaire +1 more source
2009
Image guided radiation therapy (IGRT) is currently one of the most active research fields in medical physics. The recent development of high precision dose delivery techniques with high energy photon and hadron beams can only be fully exploited if we confidently know the shape and location of radiation targets and the organs at risk at the time of the ...
openaire +1 more source
Image guided radiation therapy (IGRT) is currently one of the most active research fields in medical physics. The recent development of high precision dose delivery techniques with high energy photon and hadron beams can only be fully exploited if we confidently know the shape and location of radiation targets and the organs at risk at the time of the ...
openaire +1 more source
Advanced Image-Guided External Beam Radiotherapy
2008The goal of radiation therapy is to eradicate tumor stem cells while sparing healthy tissue. Therefore, the first aim must be to delineate tumor from healthy tissue. Advanced imaging techniques will enable one to reduce the uncertainty of microscopic extension of disease.
Thomas Rockwell, Mackie, Wolfgang, Tomé
openaire +2 more sources
On Target 2: Updated Guidance for Image-guided Radiotherapy.
Clinics in oncology, 2021H. McNair, K. Franks, M. V. van Herk
semanticscholar +1 more source