BEST PRACTICE UNTUK OPTIMISASI DAN KESELAMATAN RADIASI DI RUANGAN KATETERISASI KARDIOVASKULAR (CATHLAB) RS SENTRA MEDIKA CIBINONG

Scattered radiation generated during fluoroscopy increases the potential for patients and staff to receive radiation doses, so it is necessary to take optimization steps for radiation safety to minimize the risk of exposure to scattered X-ray radiation. This study aims to implement radiation protection in cardiac and vascular catheterization laboratories and summarize best practices for implementing efforts to minimize radiation exposure. The method used was qualitative and quantitative from 2023 to 2024; with this qualitative approach, the supervision activities in TLD badges for radiation workers, the level of diagnostic guidance for patients, and the use of radiation protection equipment were observed. For the quantitative approach, measuring the dose rate was carried out, and optimizing the positioning of the distance between the patient's table and the radiation source was carried out by direct measurement. Based on research data, the observation results obtained that the apron is still by the minimum thickness, which is 0.35-0.5 mm Pb for intervention, the results of exposure tests around the cathlab room are around 0.08-0.12 μSv/hour still below the dose constraint value, Mapping the rate of exposure in the work area during the intervention procedure obtained an optimal safe distance of around 60-70 cm from the X-ray tube. The setup of the effective distance position for intervention patients is at a distance of 80 cm from the X-ray tube to the patient table, which can reduce the absorbed dose to the patient by around 30%, the use of low dose mode (7.5 fps) with pulsed fluoroscopy during the intervention obtained the absorbed dose received by the patient reduced by 70-72% for PCI procedures and 25-29% for the type of CAG procedure. It is hoped that the protocol that uses this best practice can minimize the risk of exposure to scattered radiation and optimize medical exposure. Keywords: cathlab, best practices radiation protection, dose rate, radiation exposure, patient radiation dose.