TY - GEN
T1 - Impact contrast agent in dose calculation on external radiation therapy planning
T2 - 3rd International Seminar of Science and Technology 2021: The Path of Sustainable Development for a Better Life, ISST 2021
AU - Jusmawang, Jusmawang
AU - Abdullah, Bualkar
AU - Tahir, Dahlang
N1 - Publisher Copyright:
© 2023 Author(s).
PY - 2023/5/2
Y1 - 2023/5/2
N2 - The Radiation Therapy Plan (treatment planning system) has been carried out on the CT Simulator image from Phantom with the addition of contrast agents 0%, 1%, 2%, and 3% on the object. In this study is to determine whether the presence of contrast agents in treatment provides an inaccurate dose representation during the calculation of radiation therapy doses. Contrast agents are used to increase contrast in low contrast images. The contas used are iopromide 370. The contrast agent is injected into identical balloons with a volume of 500 mL with different concentrations, namely 0%, 1%, 2%, and 3%. Each balloon was scanned in a water phantom measuring 30x30x30 cm3 with a volume of 25 L water using CT-Simulator. From each scan result a radiation therapy plan is made using eclipse TPS (Treatment Planning System) under the same conditions and techniques (SAD 100 cm, 10 cm deep). The overall data obtained shows that the presence of contrast agents influences the dosimetry produced by up to 3% when compared to identical non-contrast plans.
AB - The Radiation Therapy Plan (treatment planning system) has been carried out on the CT Simulator image from Phantom with the addition of contrast agents 0%, 1%, 2%, and 3% on the object. In this study is to determine whether the presence of contrast agents in treatment provides an inaccurate dose representation during the calculation of radiation therapy doses. Contrast agents are used to increase contrast in low contrast images. The contas used are iopromide 370. The contrast agent is injected into identical balloons with a volume of 500 mL with different concentrations, namely 0%, 1%, 2%, and 3%. Each balloon was scanned in a water phantom measuring 30x30x30 cm3 with a volume of 25 L water using CT-Simulator. From each scan result a radiation therapy plan is made using eclipse TPS (Treatment Planning System) under the same conditions and techniques (SAD 100 cm, 10 cm deep). The overall data obtained shows that the presence of contrast agents influences the dosimetry produced by up to 3% when compared to identical non-contrast plans.
UR - https://www.scopus.com/pages/publications/85160110276
U2 - 10.1063/5.0133233
DO - 10.1063/5.0133233
M3 - Conference contribution
AN - SCOPUS:85160110276
T3 - AIP Conference Proceedings
BT - 3rd International Seminar of Science and Technology 2021
A2 - Sesa, Elisa
A2 - Darwis, Darmawati
A2 - Satrimafitrah, Pasjan
A2 - Sabhan, null
PB - American Institute of Physics Inc.
Y2 - 8 September 2021 through 9 September 2021
ER -