Exam 17: Digital Radiographic Technique

Of all radiographic imaging systems,_____ has the best contrast resolution.

Digital radiography images should be repeated if there is a problem with _____.

The _____ digital imaging system uses the highest dynamic range.

DQE is _____.

If a digital system has a spatial resolution of 4 lp/mm,it can resolve an object as small as _____ mm.

If there were such thing as a perfect imaging system,the MTF would be equal to _____.

With digital imaging,patient dose can be reduced by using higher _____ techniques.

Screen-film radiography has a dynamic range of _____.

The human visual system can distinguish _____ shades of gray.

As mAs is increased the signal to noise ratio is _____.

Spatial frequency is used to describe the quality of spatial resolution in terms of _____.

As spatial frequency increases the object size _____ and the spatial resolution _____.

The use of two screens in imaging results in a higher _____.

The number of gray shades that an imaging system can reproduce is called its _____.

If a digital radiography imaging system has a spatial resolution of 10 lp/mm,what is the pixel size of that system?

The use of an image receptor with _____ DQE can result in _____ patient doses. I. low,lower II. high,lower III. high,higher IV. low,higher

The bit capacity of each pixel identifies the _____ of a digital imaging system.

The portion of useful image-forming x-rays is referred to as the _____.

The two principal characteristics of a medical image are _____.

If an image receptor has a high probability of interacting with the x-ray beam,then it has a high _____.