Bolus Bismuth Dan Aluminium Oxide Pada Perawatan Radioterapi Teknik 3D-CRT Dan VMAT Foton 6 MV Menggunakan Fantom Antropormofik Pasca Mastektomi

Insyirah, Tsamarah (2024) Bolus Bismuth Dan Aluminium Oxide Pada Perawatan Radioterapi Teknik 3D-CRT Dan VMAT Foton 6 MV Menggunakan Fantom Antropormofik Pasca Mastektomi. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian berjudul “Bolus Bismuth Dan Aluminium Oxide Pada Perawatan Radioterapi Teknik 3D-CRT Dan VMAT Foton 6 MV Menggunakan Fantom Antropormofik Pasca Mastektomi” mempunyai tujuan, yaitu untuk mengetahui perbedaan grafik dan nilai pada pengukuran Dose-Volume Histogram (DVH) serta mengetahui perbandingan nilai Homogeneity Index (HI), Hounsflied Unit (HU), Relative Electron Density (RED), serta koefisien antenuasi massa dengan metode Volumetric Modulated arc Therapy (VMAT) dan Three Dimensional Conformal Radiotherapy (3D-CRT). Proses pembuatan bolus sendiri dilakukan secara manual yaitu berbahan dasar silicone rubber yang dicampur dengan aluminium oxide dan bismuth, kemudian dicetak menggunakan cetakan acrylic dengan ukuran 30×30 cm2 dan memiliki ketebalan 0,5 cm. Setelah itu dilakukan analisa untuk mendapatkan hasil berdasarkan tujuan penelitian tersebut. Maka nilai densitas elekton relatif bolus aluminium oxide lebih setara dengan air,jaringan lunak, dan bolus komersial dibandingkan dengan bolus bismuth. Nilai antenuasi massa pada masing-masing teknik untuk bolus bismuth lebih tinggi di bandingkan bolus aluminium oxide. Dari data DVH berupa grafik yang telah dianalisa disimpulkan bahwa nilai persentase volume dan distribusi dosis diterima PTV dan OAR yaitu jantung, paru-paru kanan, dan paru-paru kiri menggunakan teknik 3D-CRT baik tanpa bolus dan menggunakan bolus telah memenuhi ketentuan batas limitasi dosis. Sedangkan untuk teknik VMAT belum bisa memenuhi ketentuan batas limitasi dosis. Nilai HI untuk setiap bolus dengan perencanaan teknik VMAT lebih mendekati 0 daripada perencanaan dengan teknik 3D-CRT.
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In the research entitled “Bolus Bismuth and Aluminum Oxide in Radiotherapy Treatment of 3D-CRT and VMAT Techniques Foton 6 MV Using Post-Mastectomy Anthropormophic Fantom” has a goal, namely to find out the differences in graphs and values in Dose-Volume Histogram (DVH) measurements and to know the comparison of Homogeneity Index (HI) values, Hounsflied Unit (HU), Relative Electron Density (RED), and mass attenuation coefficient with Volumetric Modulated arc Therapy (VMAT) and Three Dimensional Conformal Radiotherapy (3D-CRT) methods. The process of making the bolus itself is done manually, which is made from silicone rubber mixed with aluminum oxide and bismuth, then printed using acrylic molds with a size of 30×30 cm2 and has a thickness of 0.5 cm. After that, an analysis is carried out to obtain results based on the research objectives. Then the value of relative electronic density of aluminum oxide bolus is more equivalent to water, soft tissue, and commercial bolus compared to bismuth bolus. The value of mass attenuation in each technique for bismuth bolus is higher than aluminum oxide bolus. From the DVH data in the form of graphs that have been analyzed, it is concluded that the percentage value of volume and dose distribution received by PTV and OAR, namely the heart, right lung, and left lung using the 3D-CRT technique both without bolus and using bolus has met the dose limitation limit. Meanwhile, the VMAT technique has not been able to meet the dose limitation limit. The HI value for each bolus with VMAT technique planning is closer to 0 than planning with the 3D-CRT technique.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Bolus, Indeks homogenitas, Koefisien antenuasi massa, Histogram Volume Dosis, 3DCRT, VMAT, Homogeneity index, Mass attenuation coefficient, Dose Volume Histogram
Subjects:	R Medicine > RZ Other systems of medicine
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Tsamarah Insyirah
Date Deposited:	31 Jan 2025 16:07
Last Modified:	31 Jan 2025 16:10
URI:	http://repository.its.ac.id/id/eprint/117386

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