Principles of Imaging II Final

Front

Scattered radiation produces an image with a ____ scale of contrast.

Back

longer

Front

The only type of size distortion possible in diagnostic radiology is:

Back

magnification

Front

A device used to terminate any residual exposure with a capacitor discharge mobile unit is called:

Back

grid biased tube

Front

Which grid ratio will increase contrast the most?

Back

16:1

Front

After patient motion, which will degrade image detail the most?

Back

Increased OID

Front

Define 'contrast' in imaging.

Back

Contrast refers to the difference in density between adjacent areas on an image, which helps in distinguishing structures.

Front

What is 'OID' in radiology?

Back

OID stands for Object-to-Image Distance, the distance between the object being imaged and the image receptor.

Front

Explain 'SID' in radiology.

Back

SID stands for Source-to-Image Distance, the distance from the radiation source to the image receptor.

Front

What is the purpose of a grid in radiology?

Back

A grid is used to reduce scattered radiation and improve image contrast.

Front

Define 'magnification' in the context of imaging.

Back

Magnification is the increase in the apparent size of an object on an image compared to its actual size.