Verification of dose distribution for volumetric modulated arc therapy total marrow irradiation in a humanlike phantom


Sürücü M., YEĞİNER M. , KAVAK A. G. , Fan J., Radosevich J., Aydogan B.

MEDICAL PHYSICS, cilt.39, ss.281-288, 2012 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 39 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1118/1.3668055
  • Dergi Adı: MEDICAL PHYSICS
  • Sayfa Sayıları: ss.281-288

Özet

Purpose: Volumetric modulated arc therapy (VMAT) treatment planning studies have been reported to provide good target coverage and organs at risk (OARs) sparing in total marrow irradiation (TMI). A comprehensive dosimetric study simulating the clinical situation as close as possible is a norm in radiotherapy before a technique can be used to treat a patient. Without such a study, it would be difficult to make a reliable and safe clinical transition especially with a technique as complicated as VMAT-TMI. To this end, the dosimetric feasibility of VMAT-TMI technique in terms of treatment planning, delivery efficiency, and the most importantly three dimensional dose distribution accuracy was investigated in this study. The VMAT-TMI dose distribution inside a humanlike Rando phantom was measured and compared to the dose calculated using RapidArc especially in the field junctions and the inhomogeneous tissues including the lungs, which is the dose-limiting organ in TMI.