images for planning
Multimodality images for planning CT imaging plays a crucial role in radiotherapy planning as it provides the electron density information that is required to correct the absorbed dose for the…
verification and image guided treatments
Portal verification and image guided treatments Related posts: descriptors of the radionuclide imaging process Radiation treatment planning: immobilization, localization and verification techniques photon therapy trends Dentition
typical head and neck CT simulation procedure
figure 9.7). The advantages of CT virtual simulation can be summarized as follows: • full 3D simulation allowing unique verification of beam coverage and avoidance in 3D • beams can…
simulation
3]. A physical simulator should have at least as good, or better, accuracy in positioning as the treatment unit and its mechanical tolerance must be excellent (e.g. an isocentre accuracy…
immobilization
Patient immobilization Related posts: descriptors of the radionuclide imaging process Radiation treatment planning: immobilization, localization and verification techniques photon therapy trends Dentition
Introduction
Introduction The treatment planning process consists of a series of patient-related work tasks that eventually result in a custom plan of the external beam treatment and will enable the radiation…
Radiation treatment planning: immobilization, localization and verification techniques
Introduction Patient immobilization Patient head shells Thermoplastic shells Non-shell fixation systems Stereotactic frames Body immobilization Volume definitions Non-CT contouring devices Physical simulation Localization Related posts: descriptors of the radionuclide imaging…
Conclusion
Conclusion Linear accelerators have undoubtedly become the mainstay of radiotherapy delivery in the developed world with cobalt teletherapy machines providing simplicity and economic benefits in the less affluent parts of…
new equipment
Commissioning new equipment Following the supply of a treatment machine, it is essential that the characteristics of the machine’s beams and the performance of the machine is established by measurement….
