Therefore, it is not surprising that when evaluating the image quality of digital sensors, Walker and colleagues discovered that the exposure settings being used required adjusting, most required a reduction in exposure, in order to achieve optimum image quality while maintaining appropriate patient dose. The National Council on Radiation Protection and Measurements Report 145 states that there must be a written protocol for quality assurance designed for the image receptor system however, no specifics are given in reference to digital imaging. An example of how the settings within a third party software can effect image quality is given in. Quality assurance procedures also have to account for third party software when applicable. Quality assurance for digital imaging includes proper function and calibration of the radiographic unit accurate radiographic technique calibration of computer monitors for adequate brightness/contrast and spatial resolution proper software settings ensuring that updates to computer operating systems, software and hardware provide equivalent diagnostic quality consistent calibration of scanners when using a photostimulable phosphor (PSP) plate system and use of a radiographic phantom to monitor diagnostic quality. ![]() ![]() Provides an example of radiographs that are too light in density, simulating underexposure error, due to improper scanner settings.
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