Final Exam Part 1 - Density/KVP/DETAIl

Increase because more penetration means more scatter photons hitting the IR.

Decrease because less photons are created.

Decrease it because less photons will make it through the patient and onto the IR.

Decrease because OID acts like a grid that takes away scatter.

Decrease because less radiation hits the IR.

Increase because less photons get absorbed in lead strips hence more scatter is added to your image.

Not affect is because focal spot size only affects recorded detail.

Increase in density because reducing agents over react and turns all crystals into black metallic silver.

Increase it because less filtration will allow more photons to get trhough.

Decrease it because less scatter is being created because less tissue is being exposed.

Increase because faster screens will create more light photons.

25-35 percent changes.

Cathode side bec ause more photons hit hte cathode side due to absorption of the beam in the heel of the anode.

It decreases the amount of PE absopriton interactions because an increase in kVp will increase its PENETRABILITY hence less absorption.

It doesnt affect it.

It does not affect contrast.

It will decrease contrast because an increase in filtration will increase the average energy of kVp.

Higher kVp would mean more scatter.

Scatter REDUCES contrast. Hence it is a decrease.

An increase in collimation would result in a INCREASE in contrast.

Increasing in collimation would mean smaller area being exposed.

Smaler area means there will be less tissue exposed = less scatter.

Less scatter = INCREASE in contrast

A thinner patient thickness would result in increase in contrast because like before, less tissue = less scatter = increase in contrast.

As you increase grid ratio, you are increasing radiographic contrast because the grids take away scatter.

It increases contrast because according to the H&D curve, films with increased speed generally have higher contrast.

It will DECREASE contrast because any change that does niot provide optimal processing conditions will decrease film contrast.

An icnrease in OID will INCREASE contrast mainly because OID acts like a grid. It angles scatter away hence it increases contrast.

Longer processing time decreases contrast because it would result it more chemical fog which decreases contrast.

It will decrease contrast because as you angle, youre going through more tissue. If you're going through more tissue, you will have more scatter. Scatter REDUCES contrast.

It decreases detail due to light diffusion.

An increase in the size of the focal point will DECREASE detail.

Smaller focal point = better detail

No it doesnt affect detail.

A decrease in SID will decrease detail because with a smaller SID, you have a smaller straighter beam.

The straighter beams will provide more detail.

kvp does NOT affect detail.

An increase of OID will decrease recorded detail because you are gonna be farther from the IR causing magnification.

This will result in a decrease of recorded detail because faster film speed = Larger crystals/thicker layer.

You want smaller crystals in order tro get the best detail.

More motion = decrease in detail

It does not affect it.

It doesnt affect detail

FIltration does NOT affect recorded detail

Compression increases detail

Incdreases detail because the farther you, you have an area of much larger and STRAIGHTER beam that will give you better detail.

It will decrease detail as focal spot size goes up.

It doecreases size distortion.

It increases size distortion.

It does NOT affect size distortion.

It will increase shape distortion.

OID does not affect shape distortion.