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Radiology: Magnification Imaging

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Questions and Answers

What is the primary method to achieve magnification imaging?

Decreasing the OID

Decreasing the FSD

Increasing the OID (correct)

Decreasing the FID

What happens to the magnification achieved as the patient thickness increases?

It decreases

It varies with depth in the patient (correct)

It increases

It remains constant

What is a limitation of using magnification imaging for large body regions?

Larger image receptor is required

Cannot be used with digital systems

It is not possible to use magnification imaging for large body regions (correct)

Dose is always increased

What is a consequence of increasing the OID in magnification imaging?

Increase in patient dose Signup and view all the answers

What is the effect of increasing the OID on image sharpness?

Decrease in image sharpness due to geometric blur Signup and view all the answers

Why is it necessary to reduce the focal spot size when using magnification techniques?

To improve the overall sharpness of the image Signup and view all the answers

How does magnification improve spatial resolution?

By increasing the size of the image compared to the unsharpness of the image receptor Signup and view all the answers

What is the basis for choosing the kV setting in screen-film systems?

Required contrast Signup and view all the answers

What is the purpose of choosing the mAs in screen-film systems?

To produce a suitable optical density for the region of clinical interest Signup and view all the answers

What is a limitation of digital magnification imaging?

Enlarges the pixels as well as the image Signup and view all the answers

Radiology: Magnification Imaging

Choose a study mode

Podcast

Questions and Answers

What is the primary method to achieve magnification imaging?

What happens to the magnification achieved as the patient thickness increases?

What is a limitation of using magnification imaging for large body regions?

What is a consequence of increasing the OID in magnification imaging?

What is the effect of increasing the OID on image sharpness?

Why is it necessary to reduce the focal spot size when using magnification techniques?

How does magnification improve spatial resolution?

What is the basis for choosing the kV setting in screen-film systems?

What is the purpose of choosing the mAs in screen-film systems?

What is a limitation of digital magnification imaging?

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