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All Journal JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA
Analia, Rika
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Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Physics Other

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Analisis Dosis OAR Pada Radioterapi Kanker Payudara Sinistra Di Rumah Sakit Universitas Andalas Fardela, Ramacos; Putri, Adinda Mahesa; Andriani, Innes; Diyona, Fiqi; Analia, Rika; Mardiansyah, Dedi
Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA Vol 9, No 2 (2023)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v9i2.6785

Abstract

Kanker payudara menempati urutan pertama di Indonesia dan menjadi salah satu penyumbang kematian utama akibat kanker. Penanganan Kanker payudara dapat dilakukan menggunakan terapi radiasi atau biasa disebut radioterapi. Salah satu modalitas yang sering digunakan dalam radioterapi adalah Linear Accelerator (Linac). Agar terapi radiasi dapat mengenai target kanker dan aman Organ-At-Risk (OAR) perlu dilakukan evaluasi perencanaan terapi radiasi. Evaluasi dilakukan terhadap dua teknik perencanaan terapi radiasi yaitu teknik Three Dimensional Conformal Radiotherapy (3D-CRT) dan Intensity Modulated Radiation Therapy (IMRT). Uji terapi radiasi dilakukan terhadap 3 orang pasien kanker payudara kiri. Hasil analisis dosis pada OAR menggunakan teknik 3D-CRT diperoleh sebaran dosis target dan perlindungan terhadap OAR lebih baik dibandingkan dengan teknik perencanaan 2D. Perencanaan terapi radiasi terbaik diperoleh pada teknik IMRT. Pada teknik perencanaan tersebut diperoleh sebaran dosis lebih homogen pada target maupun capaian dosis pada OAR sekitar target kanker.
Dosimetric Analysis of 6 MV Energy Photon Radiation Beam on Flatness and Symmetry on Linac in Radiotherapy Installation of UNAND Hospital Analia, Rika; Fardela, Ramacos; Ridwan, Ridwan; Diyona, Fiqi; Muttaqin, Afdhal
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 13 No 2 (2024): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v13i2.24016

Abstract

A dosimetric analysis of a 6 MV photon energy radiation beam on flatness and symmetry in LINAC radiotherapy at UNAND Hospital has been conducted. The aim was to measure the quality of the photon beam using an ion chamber cc 13 detector by observing the beam profile and analyzing the effect of field size and irradiation depth. This study used a blue phantom as the object of irradiation with 6 MV photon energy and variations in irradiation field size.  The results showed that the PDD curve at 6 MV energy was by the international standard recommended by BJR-25. Then, the average values of flatness and symmetry in the field area of 10×10 cm2 and 15×15 cm2 are 1.6% and 2.4% for flatness and 2.3% and 1.9% for symmetry. Thus, the dose distribution is more uniform, and both the left and right sides of the profile on the center axis appear balanced, which will help deliver the dose to the patient better. Thus, these values are suitable for clinical use. This study found that the beam profile was larger on the left side of the main axis. This must be considered to ensure the dose distribution complies with the established safety standards. The results also show that variations in the field area and irradiation depth can affect the beam profile, and the resulting flatness and symmetry values are in accordance with the IAEA TRUS-381 and AAPM TG-142 recommendation standards, which are ±2% flatness and ±3% symmetry.
Co-Authors Afdhal Muttaqin Andriani, Innes Dedi Mardiansyah Fiqi Diyona, Fiqi Putri, Adinda Mahesa Ramacos Fardela Ridwan, Ridwan