AUTHOR(S): 

Arnie Verde Nolasco, Luiz Oliveira Faria

TITLE

The use of the TLD-100 for quality assurance in Total Body Irradiation (TBI)

KEYWORDS

TBI, TLD-100, surface dosimetry, TBI dosimetry, TBI measurements

ABSTRACT

Total body irradiation (TBI) is a radiotherapy treatment of significant complexity. The planning of this type of treatment aims at ensuring the homogeneous distribution of the prescribed dose over the entire volume of the patient, which will inevitably present various thicknesses and densities. In order to verify the quality of a TBI during its accomplishment it is recommended to use thermoluminescent dosimeters to measure the doses delivered to the patient. This work explored the use of TLD-100 in vivo dosimetry during a TBI by developing a calculation method to find the doses deposited on the medium of the DAP in various regions of a patient’s body. The thermoluminescent dosimetry required a rigorous selection of the TLDs, followed by the calibration of the same ones in the same conditions practiced in the TBI. The results of the measurements showed a good agreement between the values planned to meet the medical prescription and the values measured in-vivo. In addition, the variation between dose values overestimated for the various regions studied showed good dose homogeneity over the entire patient volume.

Cite this paper

Arnie Verde Nolasco, Luiz Oliveira Faria. (2017) The use of the TLD-100 for quality assurance in Total Body Irradiation (TBI). International Journal of Oncology and Cancer Therapy, 2, 4-8