Introduction Indications for brachytherapy Advantages of brachytherapy Disadvantages of brachytherapy Radionuclides in brachytherapy Gamma emitters Radioactivity Half-life Material properties Half-life and specification of source strength Absorbed dose Gamma emitters …
Introduction The use of discrete gamma ray sources to irradiate tissues is usually referred to as brachytherapy and falls into three distinct applications. Interstitial therapy is where the sources are…
Treatment plan checking A treatment planning system will be tested during commissioning and this will include evaluating correct data transfer to the record and verify network and treatment unit, and…
Special techniques Over the past 20 years, highly specialist treatment techniques have been developed often with dedicated treatment machines. Although often some form of the treatment can be delivered on…
Differences between kilovoltage and electron therapy While both modalities are suited for superficial treatments, the mechanism of dose deposition is different, resulting in clinically significant differences in the features of…
Chapter 8). Maximum dose is deposited at the surface and the 90% dose level will be approximately 2 mm deep for a 60 kV beam up to 10 mm deep at 220 kV. The…
Planning tools, calculation and display Related posts: descriptors of the radionuclide imaging process Radiation treatment planning: immobilization, localization and verification techniques Principles and practice of radiation treatment planning trends Dentition
Megavoltage photon therapy Related posts: descriptors of the radionuclide imaging process Radiation treatment planning: immobilization, localization and verification techniques photon therapy trends Dentition
Introduction Patient data Megavoltage photon therapy Treatment beams Beam energy Asymmetric fields Isocentric plans Extended focus skin distance (FSD) plans Wedges Compensators Beam shaping devices Blocks Multileaf collimators (MLCs) Segmented…
