Profil Dosis Sekunder Ct Scan Sinus Paranasal Dengan Aplikasi Software Organ Dose Modulation (ODM)

Background: A radiological examination that can be used to evaluate SPN and facial bones is CT SPN. CT SPN increases the potential risk of radiation effects, especially on sensitive organs (thyroid and mammae). CT SPN exposure does not only affect the main organs but also the surrounding organs (secondary doses). The secondary dose also increases the risk of stochastic effects. Unfortunately, secondary doses are rarely measured. So, there is a need for safety and radiation protection like using Organ Dose Modulation (ODM) software. The purpose of this study was To determine the secondary dose in CT SPN using ODM software. Methods: This research is quantitative research with an experimental study approach carried out in March–May 2023 at the Radiology Installation of Indriati Solo Baru Hospital. This research was carried out by scanning the phantom with standard CT SPN protocol and adding ODM software, then measuring the dose using TLD BARC which was placed on the thyroid and mammae area. The results of the absorbed dose in thyroid and mammae were analyzed descriptively and analytically. Result: The mean absorbed dose value in the thyroid gland area without ODM software was 9.44 mSv and with ODM software was 5.12 mSv. In the breast area without ODM software, the mean absorbed dose value was 0.85 mSv, while using ODM software was 0.59 mSv. The decreased absorbed dose using ODM software in the thyroid is 44,57% and in the breast is 29,85%. Conclusion: Using ODM software in CT SPN can reduce the secondary dose (thyroid and breast areas)