|
KMID : 1151820220160030351
|
|
Journal of the Korean Society of Radiology
2022 Volume.16 No. 3 p.351 ~ p.356
|
|
|
Evaluation of Cancer Incidence Rate using Exposure Dose to Surrounding Normal Organs during Radiation Therapy for Prostate Cancer
|
|
Lee Joo-Ah
|
|
|
Abstract
|
|
|
|
The purpose of this study was to evaluate the cancer incidence rate and provide basic data by measuring the photoneutron dose generated during intensity-modulated radiation therapy and volumetric modulated arc therapy used in radiation therapy for prostate cancer. The optically stimulated luminescence albedo neutron dosimeter for neutron measurement was placed on the Rando phantom in the abdomen and thyroid and photoneutron dose generated was measured. As a result of the study, intensity-modulated radiation therapy (7 portal) was measured to be higher than volumetric rotational radiation therapy in both abdominal and thyroid locations. When the cancer incidence rate was evaluated using the nominal risk coefficient of ICRP 103, the cancer incidence rate due to exposure to the colon and thyroid during intensity-modulated radiation therapy was 9.9 per 1,000 people, and volumetric rotational radiation therapy for 1,000 people. It was 3.5 per person. Based on the principle of ALARA (As low as reasonably archievable), it is considered to be a guideline for minimizing the exposure dose to normal organs in the establishment of a radiation treatment plan.
|
|
|
KEYWORD
|
|
|
Intensity-modulated radiation therapy, Optically stimulated luminescence albedo neutron dosimeter, Nominal risk coefficient, Tissue weighting factor, Volumetric modulated arc therapy
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|