Results 161 to 170 of about 13,160 (218)

Assessment of IGRT variability for lung SBRT

Journal of Medical Imaging and Radiation Sciences, 2021
The purpose of this project was to assess factors that may influence variability in the pre-treatment kilovoltage cone beam computed tomography (kV CBCT) image matching process for lung stereotactic body radiation therapy (SBRT).Pre-treatment CBCT and planning CT data sets of previously-treated lung SBRT patients were gathered and anonymized from four ...
Bryan, Kim, Charles, Kirkby, Amy, Semaka, Brock, Debenham, Trevor, Campbell   +4 more
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

kV Cone-Beam CT-Based IGRT

Strahlentherapie Und Onkologie, 2011
Delivery of high radiation doses while simultaneously sparing organs at risk requires advanced imaging for target volume definition, highly conformal dose distributions of intensity modulated radiotherapy (IMRT), and narrow planning target volume (PTV) margins. Three-dimensional image-guided radiotherapy (IGRT) with cone-beam computer tomography (CBCT),
Judit Boda-Heggemann, Frank Lohr, Frederik Wenz   +2 more
exaly   +3 more sources

Problems and solutions in IGRT for cervical cancer [PDF]

Reports of Practical Oncology and Radiotherapy, 2018
The contribution of Image-guided Radiotherapy (IGRT) to modern radiotherapy is undeniable, being the way to bring into daily practice the dosimetric benefits of Intensity-Modulated Radiotherapy (IMRT). Organ and target motion is constant and unpredictable at the pelvis, thus posing a challenge to the safe execution of IMRT. There are potential benefits
Iván, Ríos, Ilse, Vásquez, Elsa, Cuervo, Óscar, Garzón, Johnny, Burbano   +4 more
exaly   +3 more sources

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +3 more sources

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
openaire   +2 more sources