Uji Kesesuaian CT Number Pada Pesawat CT Scan Multislice Di Rumah Sakit Sunset Vet Kuta
DOI:
https://doi.org/10.57213/antigen.v2i1.205Keywords:
CT Number, Accuracy and Uniformity Value, Test pass value, Conformity TestAbstract
This research was conducted to determine the accuracy and uniformity of CT Numbers from CT-Scan images using a phantom at Sunset Vet Hospital Kuta. This conformity test is carried out to ensure that the CT-Scan aircraft meets radiation safety requirements and provides precise and accurate diagnostic information. The method used is varying the thickness of the slice thickness, namely 3 mm, 5 mm, 8 mm and 10 mm, tube voltage 130 kVp, tube current 100 mA, window width 200 and window level 40 and ROI in the form of a circle with a size range of 1,000 – 1,005 cm2 in each slice thickness, there are 5 ROIs with different positions, namely middle ROI, ROI at 12 o'clock, ROI at 3 o'clock, ROI at 6 o'clock, and ROI at 9 o'clock. From the measurement results, the accuracy and uniformity values of the CT Number are different for each slice and ROI position, for the tolerance limit for CT Number accuracy values according to PERKA BAPETEN Number 2 of 2018 is in the range -4 to 4, while the tolerance limit for CT Number uniformity values is in the range -2 to 2. From the results of measurements that have been carried out, the accuracy and uniformity values The CT Number in this study has passed the test. The research results show that slice thickness does not affect the accuracy and uniformity of the CT Number on CT-Scan images.
References
Wahyuni S, Amalia L. Perkembangan Dan Prinsip Kerja Computed Tomography (CT Scan). Galen J Kedokt dan Kesehat Mhs Malikussaleh. 2022;1(2):88.
Aprilyanti D, Milvita D, Prasetio H, Yuliati H. Pengaruh Diameter Phantom Dan Tebal Slice Terhadap Nilai Ctdi Pada Pemeriksaan Menggunakan Ct-Scan. J Fis Unand. 2013;2(2):81–7.
Pertiwi Y, Sella VM, Iskandar J. Analysis of Quality Control Computerized Tomography Scan (Ct Scan) Results in Indonesia Based on National and International Standards. 2021;(2021):108–16.
Nansih LA. Uji Kesesuaian Ct Number in Water Pada Pesawat Ct Scan Merk Philip Di Instalasi Radiologi Rsu. Bmc Padang. J Teras Kesehat. 2023;6(1):16–21.
Applications T. Quality Assurance for Computed Tomography -Diagnostic and Therapy Applications. (19).
Mas’ull AR. S. Uji Kesesuaian CT Number pada Pesawat CT Scan Multi Slice di Unit Radiologi Rumah Sakit Islam Yogyakarta, Youngster Physics Journal, Jurusan Fisika, Fakultas Sains dan Matematika. Univ Diponegoro. 2014;3(4):335–40.
Bapeten P. Perka Bapeten Nomor 2 Tahun 2018 tentang Uji Kesesuaian Pesawat Sinar-X Radiologi Diagnostik dan Intervensional. Nomor 2 Tahun 2018 Tentang Uji Kesesuaian Pesawat Sinar-X Radiol Diagnostik dan Interv. 2018;
Tack D, Bailly JM, Fumière E, Delcour C. Multislice computed tomography in clinical practice. J Belge Radiol. 2001;84(2):48–55.
Ayu RG. Analisis Noise Berdasarkan Slice Thickness Dengan Teknik Irisan Axial Pada Citra Computed Tomography Scan (Ct-Scan). Digital 42 Repository Universitas Jember. 2018.
Kurniawan AN, Soesanti I. Evaluasi Nilai Noise Sebelum Dan Sesudah Kalibrasi Sebagai Salah Satu Wujud Kinerja Pesawat CT-Scan. J Forum Tek. 2011;33(3):157–65.
Syamsidar. Analisis Akurasi Dan Keseragaman CT Number Dari Citra CT Scan Menggunakan Phantom Gammex, Departemen Fisika Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Hasanuddin Makassar. 2017