Contrast increases with all of the following EXCEPT
A)decreased kVp.
B)decreased field size.
C)decreased part thickness.
D)increased scatter.

Question

Quizplus · Accepted Answer

Increased scatter actually decreases image contrast because it adds a uniform gray haze over the image, reducing the difference between the black and white areas, which is what contrast is all about. Decreased kVp, decreased field size, and decreased part thickness all serve to reduce the amount of scatter and/or the range of X-ray energies, which increases the contrast by making the differences between different tissues more pronounced.

Contrast Increases with All of the Following EXCEPT