Determination of depth and field size dependence of multileaf collimator transmission in intensity-modulated radiation therapy beams
نویسندگان
چکیده
منابع مشابه
Determination of depth and field size dependence of multileaf collimator transmission in intensity‐modulated radiation therapy beams
Intensity-modulated radiation therapy (IMRT) plans for the treatment of large and complex volumes may contain a relatively large contribution from multileaf collimator (MLC) transmission. In such cases, comprehensive characterization of direct and scatter MLC transmission is important. We designed a set of tests (open beam, closed static MLC, and dynamic MLC gap) to determine dosimetric MLC pro...
متن کاملDesign, Simulation and Manufacture of a Multileaf Collimator to Confirm the Target Volumes in Intensity Modulated Radiation Therapy
Introduction: Intensity modulated radiation therapy (IMRT) is one of the cancer treatment methods. It is important to selectively aim at the target in this way, which can be performed using a multileaf collimator (MLC). Materials and Methods: In order to specifically irradiate the target volume in radiotherapy to reduce the patient absorbed dose, the use of multileaf collimator has been investi...
متن کاملdesign, simulation and manufacture of a multileaf collimator to confirm the target volumes in intensity modulated radiation therapy
introduction: intensity modulated radiation therapy (imrt) is one of the cancer treatment methods. it is important to selectively aim at the target in this way, which can be performed using a multileaf collimator (mlc). materials and methods: in order to specifically irradiate the target volume in radiotherapy to reduce the patient absorbed dose, the use of multileaf collimator has been investi...
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Introduction: Radiotherapy is one of the effective methods in the treatment of cancer. In the recent methods of radiotherapy, intensity modulated radiotherapy (IMRT) technique by compensators is used. when photon beam passes the compensator, scattered photons can be generated within the compensator. The presence of scattered photons may complicate the design of compensators as...
متن کاملDosimetric characteristics of dual‐layer multileaf collimation for small‐field and intensity‐modulated radiation therapy applications
The purpose of the present work was to measure the performance characteristics in the penumbra region and on the leaf-end of an innovative dual-layer micro multileaf collimator (DmMLC). The DmMLC consists of two orthogonal (upper and lower) layers of leaves; a standard MLC consists of one layer. The DmMLC provides unique performance characteristics in smoothing dose undulation, reducing leaf-en...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2007
ISSN: 1526-9914
DOI: 10.1120/jacmp.v8i4.2693