Monte Carlo simulation-based feasibility study of a dose-area product meter built into a collimator for diagnostic X-ray

Abstract

According to the International Electro-technical Commission, manufacturers of X-ray equipment should indicate the number of radiation doses to which a patient can be exposed. Dose-area product (DAP) meters are readily available devices that provide dose indices. Collimators are the most commonly employed radiation beam restrictors in X-ray equipment. DAP meters are attached to the lower surface of a collimator. A DAP meter consists of a chamber and electronics. This separation makes it difficult for operators to maintain the accuracy of a DAP meter. Developing a comprehensive system that has a DAP meter in place of a mirror in the collimator would be effective for measuring, recording the dose and maintaining the quality of the DAP meter. This study was conducted through experimental measurements and a simulation. A DAP meter built into a collimator was found to be feasible when its reading was multiplied by a correction factor.

Proper Management of the Clinical Exposure Index Based on Body Thickness Using Dose Optimization Tools in Digital Chest Radiography: A Phantom Study

“…Previous studies have revealed that radiological technologists tend to take a radiograph with a higher exposure dose to avoid re-examination. Seo et al reported that the entrance surface dose (ESD) of a digital radiography system was 55.25% higher than that of the analog system in general radiographic examinations in Korea [ 2 , 5 ]. Therefore, it is essential to manage and control the exposure dose of the digital radiography system for patient safety regarding radiation protection.…”

Feasibility of new patient dose management tool in digital radiography: Using clinical exposure index data of mobile chest radiography in a large university hospital

“…Since the digital radiography (DR) system was introduced in medical radiology, progress has been made in diagnostic imaging, such as obtaining a constant gray-level image regardless of the degree of X-ray exposure through digital image processing [ [1] , [2] , [3] ]. This is expected to reduce the medical radiation exposure of the public.…”