منابع مشابه
Anatomical imaging for radiotherapy.
The goal of radiation therapy is to achieve maximal therapeutic benefit expressed in terms of a high probability of local control of disease with minimal side effects. Physically this often equates to the delivery of a high dose of radiation to the tumour or target region whilst maintaining an acceptably low dose to other tissues, particularly those adjacent to the target. Techniques such as in...
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Three dimensional (3D) imaging is key to the successful planning and delivery of pelvic radiotherapy treatment and is integrated into every step of the radiotherapy treatment pathway. Diagnostic and therapeutic imaging technology has evolved in the last decade, increasing the complexity of imaging choices available for target localisation, and introducing soft tissue visualisation into the trea...
متن کاملImaging for new radiotherapy techniques
Radiotherapy could be considerably improved by the recent development of three-dimensional intensity-modulated radiation therapy. This technique allows the concept of so-called dose painting or adaptive dose distribution to be implemented with improved aligning of the dose distribution along the complex geometric arrangements of the tumour and the surround healthy critical structures. This enab...
متن کاملEvaluation of the Portal Imaging System Performance for an Elekta Precise Linac in Radiotherapy
Introduction: Electronic portal imaging devices (EPIDs) provide two- and three-dimensional planar and volumetric cone beam images to improve the accuracy of radiation treatment delivery. Periodic quality assurance (QA) of EPIDs is essential for dosimetric verification in radiotherapy. In this study, a QA program was implemented to evaluate the function of the EPID to be confident in applying co...
متن کاملImaging in radiotherapy.
Radiotherapy, more then any other treatment modality, relies heavily and often exclusively on medical imaging to determine the extent of disease and the spatial relation between target region and neighbouring healthy tissues. Radically new approaches to radiation delivery are inspired on CT scanning and treat patients in a slice-by-slice fashion using intensity modulated megavoltage fan beams. ...
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ژورنال
عنوان ژورنال: Physics in Medicine and Biology
سال: 2008
ISSN: 0031-9155,1361-6560
DOI: 10.1088/0031-9155/53/12/r01