Pengaruh Teknik kV Tinggi pada Pemeriksaan Radiografi Thorak Terhadap Entrance Surface Air Kerma dan Dose Area Product yang Diterima oleh Pasien di RSUP Dr. Kariadi Semarang

Abstract

This study aims to determine the effect of using the high kV technique on chest radiographic examination on Entrance Surface Air Kerma (ESAK), and Dose Area Product (DAP) received by patients. This is one of the optimization efforts in radiation protection and safety in ionizing radiation. This study used retrospective data from chest radiographic images generated by the Siemens Ysio Max radiograph at the Radiology Installation of RSUP Dr. Kariadi Semarang in 2021. Two voltages were used, 59.8 kV and 108.8 kV, with a total sample of 225 patients. The use of the high kV technique produces a smaller ESAK value, namely with a difference of 60.75%, and a smaller DAP value, namely with a difference of up to 74.92%, compared to using the standard kV technique. These results show a significant difference in the radiation dose produced using the high kV technique with image quality that can still use to diagnose a disease/disorder. Keywords: chest radiography, high kV technique, Entrance Surface Air Kerma, Dose Area Product