Results 291 to 300 of about 354,551 (319)

Image-guided radiotherapy: rationale, benefits, and limitations

The Lancet Oncology, 2006
Technological advances have greatly enhanced the specialty of radiation oncology by allowing more healthy tissue to be spared for the same or better tumour coverage. Developments in medical imaging are integral to radiation oncology, both for design of treatment plans and to localise the target for precise administration of radiation.
Laura A, Dawson, Michael B, Sharpe
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A (short) history of image-guided radiotherapy

Radiotherapy and Oncology, 2008
Progress in radiotherapy is guided by the need to realize improved dose distributions, i.e. the ability to reduce the treatment volume toward the target volume and still ensuring coverage of that target volume in all dimensions. Poor ability to control the tumour's location limits the accuracy with which radiation can be delivered to tumour-bearing ...
Verellen, Dirk, De Ridder, Mark, Storme, Guy   +2 more
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Physics Support of Image-guided Radiotherapy

Clinical Oncology, 2013
Sir d The implementation of image-guided radiotherapy (IGRT) into routine clinical practice has been far more rapid than other novel technologies such as intensity-modulated radiotherapy or particle therapy. This may be due in part to the reduced physicist resources required to commission commercial systems and the inherent multidisciplinary nature of ...
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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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Quantitative MRI on MR-Linacs: Towards Biological Image-Guided Adaptive Radiotherapy.

Seminars in Radiation Oncology
Recognizing the potential of quantitative imaging biomarkers (QIBs) in radiotherapy, many studies have investigated the prognostic value of quantitative MRI (qMRI).
P. V. van Houdt, Shaolei Li, Yingli Yang, U. A. van der Heide   +3 more
semanticscholar   +1 more source

X-ray Activated Nanoprodrug for Visualization of Cortical Microvascular Alterations and NIR-II Image-Guided Chemo-Radiotherapy of Glioblastoma.

Nano letters (Print)
The permeability of the highly selective blood-brain barrier (BBB) to anticancer drugs and the difficulties in defining deep tumor boundaries often reduce the effectiveness of glioma treatment.
Lichao Su, Kang Zhu, Xiaoguang Ge, Ying Wu, Jieping Zhang, Guoyu Wang, Daojia Liu, Ling Chen, Qingqing Li, Junqiang Chen, Jibin Song   +10 more
semanticscholar   +1 more source

[Image-guided radiotherapy for prostate cancer].

Aktuelle Urologie, 2007
Intensity modulated radiotherapy (IMRT) has improved the capability to apply geometrically individualised high radiotherapy doses to the prostate bed, prostate and seminal vesicles. A high risk of geometrical miss with conformal methods, however, has been documented for mobile targets such as the prostate.
Lohr F, Boda-Heggemann J, Wenz F, Wiegel T   +3 more
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Image guided radiotherapy for prostate cancer.

Bulletin du cancer, 2008
The purpose of external beam radiotherapy is to sterilize malignant tumours and at the same time to avoid complications by radiation injury to the surrounding healthy tissues. Modern radiation techniques in recent years have allowed to safely escalate the dose by approximately 10% for the treatment of prostate cancer, resulting in a disease control ...
Soete, Guy, Verellen, Dirk, Storme, Guy
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Helical Tomotherapy: Image-Guided and Adaptive Radiotherapy

2011
Helical tomotherapy is a treatment device that is designed to deliver intensity-modulated radiation therapy treatments. Helical tomotherapy systems have been used to treat a wide spectrum of anatomical sites. In addition to its unique delivery technique, the capability to obtain megavoltage-based CT (MVCT) images is highly integrated into the system's ...
Patrick, Kupelian, Katja, Langen
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Conformal radiotherapy, intensity-modulated radiotherapy and image-guided radiotherapy

2008
The aim of radiotherapy is to deliver the desired tumoricidal dose to the intended target as accurately and reliably as possible and avoid unnecessary dose to surrounding normal tissues. This principle was recognized when irradiation was utilized therapeutically over 100 years ago and has been the guiding force for development and refinement of modern ...
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