Characterization of Occupational Radiation Exposure in Interventional Radiology Based on TLD Measurements
Rini Anggraeni1, 2,a), Widya Apriyani S3, Lukmanda Evan Lubis1, Syahril Siregar1,b)

1Department of Physics, Faculty Mathematics and Natural Sciences, Universitas Indonesia, 16424, Depok, Jawa Barat, Indonesia
2National Research and Innovation Agency (BRIN),10340, Jakarta, Indonesia
3Radiology Department, Dharmais National Cancer Hospital, 11420, Jakarta Indonesia

Abstract

Interventional radiology has rapidly developed due to its advantages in diagnostic imaging and minimally invasive procedures. However, radiation exposure during these procedures remains a significant concern for healthcare workers. This study aims to evaluate the distribution of occupational radiation dose among healthcare workers during interventional radiology procedures, specifically transarterial chemoembolization (TACE), through direct measurements. Dose measurements were performed using thermoluminescent dosimeter (TLD) rods under simulated clinical TACE conditions. TLDs were placed at positions representing the radiologist, Nurse 1, Nurse 2, and radiographer, at different heights to assess both eye lens and whole-body doses. The results indicate that radiation dose varies depending on staff position, height, and irradiation mode, with higher doses observed during cine mode. Nevertheless, all measured doses remained below the limits recommended by the International Commission on Radiological Protection (ICRP). These findings highlight the importance of optimizing imaging techniques and the effective use of radiation protection devices to minimize occupational exposure.

Keywords: interventional radiology, occupational dose, TLD, healthcare worker, radiation protection

Topic: Medical Physics and Biophysics