TY - GEN
T1 - The effect of dynamic wedge angle in breast cancer's absorbed radiation dose
AU - Fitriyah, Nurul
AU - Amalia, Rahmatul Izza Nur
AU - Suhartono, Bambang Haris
AU - Astuti, Suryani Dyah
N1 - Publisher Copyright:
© 2020 Author(s).
PY - 2020/12/9
Y1 - 2020/12/9
N2 - A Wedge is well known as one of medical equipment to homogenize the dose distribution received by the target during treatment process. This project aims to analyze the effect of wedge angle dependence on absorb irradiation dose received by the Planning Target Volume (PTV) utilizing Dose Volume Histogram (DVH) result. The variations of wedge angle are 15°, 30°, 45° and 60°. This study involved 3 data on breast cancer patients with prescribe dose 25x2 Gy. The radiation dose of PTV was evaluated at D5% and D95%. The average D5% of PTV at a wedge angle of 15° was (53.80±0.02) Gy, wedge 30° was (57.01±0.02) Gy, wedge 45° was (60.54±0.02) Gy, and wedge 60° for (63.88±0.02) Gy. The D95% of PTV at a wedge angle of 15° was (35.00±0.02) Gy, wedge 30° was (36.15±0.02) Gy, wedge 45° was (37.54±0.02) Gy, and wedge 60° for (41.49±0.02) Gy. The average comparison value of Homogeneity Index (HI) with wedge variation is (1.53±0.05) for wedge 15°, for wedge 30° for (1.57±0.05), for wedge 45° for (1.61±0.06), and for a 60° wedge (1.54±0.01). Statistical test results showed that the HI values on wedges 15°, 30°, 45°, and 60° were not significantly different (P = 0.34). However, the HI value which was close to ideal was equal to 1 and could give a homogeneous and optimal dose distribution to PTV. Therefore, wedge angle 15° could give a more homogeneous and optimal dose distribution.
AB - A Wedge is well known as one of medical equipment to homogenize the dose distribution received by the target during treatment process. This project aims to analyze the effect of wedge angle dependence on absorb irradiation dose received by the Planning Target Volume (PTV) utilizing Dose Volume Histogram (DVH) result. The variations of wedge angle are 15°, 30°, 45° and 60°. This study involved 3 data on breast cancer patients with prescribe dose 25x2 Gy. The radiation dose of PTV was evaluated at D5% and D95%. The average D5% of PTV at a wedge angle of 15° was (53.80±0.02) Gy, wedge 30° was (57.01±0.02) Gy, wedge 45° was (60.54±0.02) Gy, and wedge 60° for (63.88±0.02) Gy. The D95% of PTV at a wedge angle of 15° was (35.00±0.02) Gy, wedge 30° was (36.15±0.02) Gy, wedge 45° was (37.54±0.02) Gy, and wedge 60° for (41.49±0.02) Gy. The average comparison value of Homogeneity Index (HI) with wedge variation is (1.53±0.05) for wedge 15°, for wedge 30° for (1.57±0.05), for wedge 45° for (1.61±0.06), and for a 60° wedge (1.54±0.01). Statistical test results showed that the HI values on wedges 15°, 30°, 45°, and 60° were not significantly different (P = 0.34). However, the HI value which was close to ideal was equal to 1 and could give a homogeneous and optimal dose distribution to PTV. Therefore, wedge angle 15° could give a more homogeneous and optimal dose distribution.
UR - http://www.scopus.com/inward/record.url?scp=85097980565&partnerID=8YFLogxK
U2 - 10.1063/5.0034122
DO - 10.1063/5.0034122
M3 - Conference contribution
AN - SCOPUS:85097980565
T3 - AIP Conference Proceedings
BT - 2nd International Conference on Physical Instrumentation and Advanced Materials 2019
A2 - Trilaksana, Herri
A2 - Harun, Sulaiman Wadi
A2 - Shearer, Cameron
A2 - Yasin, Moh
PB - American Institute of Physics Inc.
T2 - 2nd International Conference on Physical Instrumentation and Advanced Materials, ICPIAM 2019
Y2 - 22 October 2019
ER -
