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Penentuan Nilai Computed Tomography Dose Index (CTDIvol) dan Dose Length Product (DLP) Pesawat CT-Scan kepala pada kasus Stroke Non Hemoragik (SNH): Determination of Computed Tomography Dose Index (CTDIvol) and Dose Length Product (DLP) values of head CT-Scan aircraft in cases of Non Hemorrhagic Stroke (SNH) Nabilla Fatimah; Gusti Ngurah Sutapa; Wayan Balik Sudarsana; Ni Nyoman Ratini; Putu Suardana; I Ketut Putra
Kappa Journal Vol 8 No 2 (2024): Kappa Journal
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.25599

Abstract

A study was conducted on the determination of Computed Tomography Dose Index (CTDIvol) and Dose Length Product (DLP) values of head CT-Scan aircraft in cases of Non Hemorrhagic Stroke (SNH). The study was conducted at the Radiology Installation of Prof.Dr. I.G.N.G. Ngoerah Denpasar Hospital using secondary data from head CT-Scan examination results consisting of age, gender, kV, mAs, slice thickness, rotation time, CTDIvol and DLP in patients aged 40-80 years. This study aims to determine the local DRL value at Prof.Dr. I.G.N.G. Ngoerah Denpasar Hospital does not exceed the national DRL value. It was found that in female patients the CTDIvol value in male patients was 54.9 mGy and in female patients it was 53.11 mGy. While the DLP value of male patients was 1143 mGy.cm and in female patients it was 1118 mGy.cm. Based on the results of the analysis with a one-way t-test, it can be seen that the DRL values of CTDIvol and DLP in both male and female patients do not exceed the standards set by BAPETEN No.1211/K/V/2021, so it can be said that the CT-Scan at the Radiology Installation of Prof.Dr. I.G.N.G. Ngoerah Denpasar Hospital is still suitable for use in examinations, especially head examinations.
Studi Dosis Radiasi Berkas Foton Energi 6 MV dan 10 MV Terhadap Nilai HI dan CI pada Kasus Kanker Serviks Menggunakan Teknik Intensity Modulated Radiation Therapy (IMRT): - Gusti Ngurah Sutapa; I Wayan Suarya; Wayan Balik Sudarsana; Ida Bagus Made Suryatika; Made Sumadiyasa; I Gusti Agung Widagda
Kappa Journal Vol 8 No 3 (2024): Kappa Journal
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i3.27385

Abstract

Penelitian ini menganalisis distribusi dosis radiasi foton 6 MV dan 10 MV pada pasien kanker serviks menggunakan teknik Intensity Modulated Radiation Therapy (IMRT). Tujuan penelitian adalah untuk mengevaluasi keseragaman dosis dan kecocokan dosis pada Planning Target Volume (PTV) dengan menggunakan Homogeneity Index (HI) dan Conformity Index (CI). Sampel penelitian terdiri dari 10 pasien kanker serviks yang dirawat di RSUP Prof. I G. N. G. Ngoerah Denpasar. Dosis yang diterima pasien dianalisis menggunakan Dose Volume Histogram (DVH) untuk masing-masing energi foton. Hasil menunjukkan bahwa rata-rata HI untuk energi 6 MV adalah 0,0817 dan untuk 10 MV adalah 0,0803, sementara CI untuk 6 MV dan 10 MV masing-masing adalah 0,9556 dan 0,9701. Nilai HI dan CI yang dihasilkan sesuai dengan standar ICRU Report 83, yang menunjukkan distribusi dosis yang seragam dan efektif pada PTV. Temuan ini mengindikasikan bahwa kedua energi foton dapat memberikan distribusi dosis yang optimal, dan pemilihan energi dapat disesuaikan dengan kebutuhan klinis tanpa mengurangi kualitas terapi.
Co-Authors Gusti Ngurah Sutapa Gusti Ngurah Sutapa I G. A. Widagda I Ketut Putra I Wayan Suarya Ida Bagus Made Suryatika Made Sumadiyasa Nabilla Fatimah Ni Nyoman, Ratini Putu Suardana