|
KMID : 1151820190130040637
|
|
Journal of the Korean Society of Radiology
2019 Volume.13 No. 4 p.637 ~ p.643
|
|
|
Comparison of Practical Usefulness of Respirational Radiation Treatment Using Geant 4 Simulation Code
|
|
Jang Eun-Sung
Lee Hyo-Yeong
|
|
|
Abstract
|
|
|
|
To verify internal movements of the body, a DICOM file obtained from CT and a Geant4 code were used to simulate lung cancer patients. In addition, the method is applied to measure the movement of tumor when the movement of t he tumor is located inhale and exhale by creating a virtual tumor in the self-produced moving phantom, and to check the distribution of dose in the treatment plan and the accuracy of tumor in PTV for respiratory and lung cancer patients. It was confirmed that 97% or more respiratory control radiation therapy was effective even if the moving area was more than 3cm, in the 40% to 70% range. Dose distribution with respiratory radiation therapy applied to moving targets, measured by film in the actuation phantom, was shown to be within a 3mm margin of error for dose distribution containing 90%. It was confirmed that for actual patient breathing curves, the treatment time may be shorter than that due to the longer expiratory time.
|
|
|
KEYWORD
|
|
|
Geant4 code, moving phantom, patient breathing, PENELOPE
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|