WebWedge filters are commonly used to modify dose distri-butions in radiation therapy to optimize target volume coverage.10 With IMRT, nonphysical wedges (virtual or dynamic) are at the center of attention.11 Nevertheless, due to technical issues, hard wedges should still be used in certain circumstances. WebAug 25, 2008 · A ‘dynamic wedge’ consists of modulating the beam fluence thanks to the movement of one linac jaw during irradiation. The dose distribution in the patient is the same as the one obtained with a mechanical wedge as …
Enhanced dynamic wedge output factors for Varian 2300CD …
WebJun 19, 2016 · Dynamic wedges do not offer significant clinical advantages over the traditional metal wedges. Moreover, all wedges and compensators are now superseded by the new technology using dynamic multileaf … WebA description of the principles and rationale behind the use of wedge filters in radiotherapy, including:Hard wedgesMotorised (Elekta) wedgesDynamic wedgesAl... poplar grove state bank
Physical and Dynamic Wedges in Radiotherapy for …
WebJul 1, 2013 · The aim of the modern radiotherapy is to get a homogenous dose distribution in PTV, which is obtained by using for example physical or dynamic wedges. The using of a physical wedge has provided such isodose distributions but their use resulted in detrimental dosimetric consequences, for example beam hardening effects and practical … WebThe simplest form of intensity modulation, wedge filters, has been in use in radiotherapy since the 1960s. A wedge is an angled piece of high-density material that preferentially attenuates a photon beam on its thick end, resulting in a dose gradient across the beam. WebA description of the principles and rationale behind the use of wedge filters in radiotherapy, including: Hard wedges Motorised (Elekta) wedges Dynamic wedges Alteration of wedge... poplar grove il airport