Evaluation of Image Quality in Fluoroscopy Machines in Khartoum State

Abstract

Fluoroscopy refers to the use of an X ray beam and a suitable image receptor for viewing images of processes or instruments in the body in real time. Fluoroscopic imaging trades the high signal to noise ratio (snR) of radiography for high temporal resolution, as factors that maintain patient dose at an acceptable level must be used. The aim of this study was to perform quality control (QC) of image quality for three digital fluoroscopy units used cardiovascular and interventional a radiology procedure from Khartoum state during (July 2018 – December 2018). Measurements were based on the QC protocol developed in the frame work of European Commission (EU) DIMONDIII project. The Image quality was evaluated in terms of spatial resolution and Contrast detail delectability. Whereas image quality was assessed using HuettnerType 53spatialfrequencygrating and TOR FG18 contrast detail phantom. The results show that the limiting resolution was1.5 LP/mm for image intensifier field diameters between19 and 32 cm and this value is acceptable when compare it to European Commission (EU) DIMONDIII but the limiting resolution is less than the some similar study. The results of present study can be used as baseline for future quality assurance measurements