Quality Assurance and Control in Computed Tomography Analysis

This report provides a comprehensive overview of quality assurance and quality control in computed tomography (CT) imaging. It begins with an introduction to CT, explaining its function and the importance of image quality. The report then delves into the specific quality control tests performed on CT scanners, detailing the purpose, frequency, procedure, acceptable results, failure causes, and corrective actions for each test. These tests include assessing the average CT number of water, the standard deviation of the CT water number, high and low contrast resolution, distance accuracy, uniformity of CT number, hard copy output, accuracy of localization devices, bed indexing quality, bed backlash, light field accuracy, pitch and slice width, and CT number versus patient positioning and size. The report also touches on South African regulations regarding quality assurance and control in diagnostic radiography. The goal of this report is to provide a deep dive into quality control measures within CT scanning, ensuring optimal image quality and patient safety.