Results 161 to 170 of about 12,952 (199)

IGRT for IMRT

2015
Progress of radiation therapy technologies has enabled delivery of higher doses of radiation more precisely, resulting in improvement of the clinical outcomes of radiation therapy and of the quality of life (QOL) of the patients. Among the modern radiation therapy techniques, intensity-modulated radiation therapy (IMRT) has been established as an ...
Hidenobu Tachibana, Tetsuo Akimoto
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IGRT: How and When

2014
This chapter gives an overview of IGRT techniques employed in prostate cancer. The described techniques include portal imaging using Megavoltage sources (porta films and electronic portal imaging devices), Kilovoltage radiographs (room-based or gantry-based systems, transabdominal ultrasound, and in-room CTs.
Marciana Nona Duma, Patrick Kupelian
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Quality assurance of IGRT

2017
Image-guided radiation therapy (IGRT) utilizes knowledge of the target location and change in anatomy during treatment obtained through various imaging techniques to guide the radiation delivery. Particularly with advanced treatment delivery techniques such as intensity-modulated radiation therapy (IMRT) leads to high-precision dose sculpting with ...
Krishni Wijesooriya, Taeho Kim, Josh Evans, Quan Chen   +3 more
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APPLICATION OF IGRT IN CLINICAL PRACTICE

SAKHAROV READINGS 2021: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY Part 2, 2021
Radiation therapy is a highly effective targeted therapy for the treatment of cancer. Technological innovations have made it possible to directly integrate imaging technology into the radiation processing device to improve the accuracy and accuracy of radiation delivery.
A. V. Rybina, A. V. Haida
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Clinical Assessment Of Stereotactic IGRT: Spinal Radiosurgery

Medical Dosimetry, 2008
The role of stereotactic radiosurgery for the treatment of intracranial lesions is well established. Its use for the treatment of spinal lesions has been limited because of the availability of effective target immobilization devices. Recent advances in stereotactic IGRT have allowed for spinal applications.
Peter C, Gerszten, Steven A, Burton
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Accuracy and Precision of an IGRT Solution

Medical Dosimetry, 2009
Image-guided radiotherapy (IGRT) can potentially improve the accuracy of delivery of radiotherapy treatments by providing high-quality images of patient anatomy in the treatment position that can be incorporated into the treatment setup. The achievable accuracy and precision of delivery of highly complex head-and-neck intensity modulated radiotherapy ...
Webster, Gareth J., Rowbottom, Carl G., Mackay, Ranald I.   +2 more
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From IMRT to IGRT: Frontierland or Neverland?

Radiotherapy and Oncology, 2006
The recent enthusiasm for real-time image guidance in radiotherapy (IGRT) is in part due to the commercial availability of advanced on-line imaging technologies. Perhaps more important than its potential to improve conventional radiotherapy, IGRT may lead to a paradigm shift in facilitating hypo-fractionated or single-dose treatment. However, there are
C Clifton, Ling, Ellen, Yorke, Zvi, Fuks
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When Should IGRT Be Done?

2018
The therapeutic window of radiotherapy is defined by the balance between the tumor control probability (TCP) and the normal tissue complication probability (NTCP). The tremendous evolution from bony-landmark two-dimensional radiotherapy over CT-based three-dimensional radiotherapy towards highly-conformal radiotherapy techniques such as intensity ...
K. Haustermans, I. Joye
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[Image guided radiation therapy (IGRT)].

Bulletin du cancer, 2010
Image guided radiation therapy (IGRT) is a major technical innovation of radiotherapy. It allows locating the tumor under the linear accelerator just before the irradiation, by direct visualization (3D mode soft tissue) or indirect visualization (2D mode and radio-opaque markers).
Lagrange, Jean Léon, de Crevoisier, Renaud   +1 more
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Planar IGRT dose reduction: A practical approach

Practical Radiation Oncology, 2015
To retrospectively estimate the cumulative absorbed dose (at the skin) from kilovoltage planar x-rays received by 90 patients treated on a Varian iX and to determine if that dose could be reduced without sacrificing image quality.To estimate surface dose, measurements were obtained using the "in-air" method by varying the source-to-detector distance ...
Alec M, Block, Jason, Luce, Jeffrey Y, Lin, Mark A, Hoggarth, John C, Roeske   +4 more
openaire   +2 more sources