EVALUASI NILAI CTDI DAN DLP PADA PEMERIKSAAN CT SCAN ABDOMEN NON KONTRAS DI RUMAH SAKIT UMUM DAERAH dr.ZAINOEL ABIDIN BANDA ACEH
ABSTRACT
BACHELOR OF APPLIED SCIENCE PROGRAM IMAGING RADIOLOGY
TECHNOLOGY STUDY PROGRAM RADIODIAGNOSTICS AND RADIOTHERAPY
DEPARTMENT HEALTH POLYTECHNIC
OF HEALTH MINISTRY
JAKARTA II
THESIS, 2025
AZIMAR
EVALUATION OF CTDI AND DLP VALUES IN NON-CONTRAST ABDOMINAL CT
SCAN EXAMINATIONS UNDERTAKEN AT dr. ZAINOEL ABIDIN REGIONAL
GENERAL HOSPITAL, BANDA ACEH
V Chapters + 52 Pages + 7 Images + 7 Tables + 8 Attachments
Background: technologically, CT Scan is a vital medical imaging technology widely used for
diagnostic purposes. However, it exposes patients to higher radiation doses compared to the other
imaging modalities. In relation to which, radiation dose evaluation is essential, using parameters
such as Computed Tomography Dose Index volume (CTDIvol) and Dose Length Product (DLP),
in compliance with the standards set out by the Nuclear Energy Regulatory Agency (BAPETEN).
In this matter, the recommended limits are 25 mGy for CTDIvol and 800 mGy·cm for DLP.
Objective: this research aims to evaluate the CTDIvol and DLP values in non-contrast abdominal
CT Scan examinations conducted at dr. Zainoel Abidin Regional General Hospital, Banda Aceh,
during the period of October up to November 2024.
Methodology: an observational study with a qualitative method with descriptive approach was
conducted using secondary data from the examination results of 30 patients.
Research result: the 75th percentile values for CTDIvol and DLP were respectively 13.00 mGy
and 679.01 mGy·cm. Considerably, these values were within the safety limits set out by
BAPETEN and the 2021 Indonesian Diagnostic Reference Level (IDRL) for non-contrast
abdominal CT Scans.
Conclusion: the CTDIvol and DLP values for non-contrast abdominal CT Scans undertaken at dr.
Zainoel Abidin Regional General Hospital comply with the recommendations of BAPETEN/IDRL
2021. The examination protocols effectively implement the As Low As Reasonably Achievable
(ALARA) principle, ensuring the patient safety without compromising any diagnostic quality.
Keywords: Non Contrast Abdominal CT Scan, CTDIvol, DLP
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