The Use of Contrast Material as a Means for Visualizing

Multiple Choice

The use of contrast material as a means for visualizing human anatomy has a long history.Regardless of the type of contrast media,the purpose for using contrast media is to

A) increase patient radiation dose and improve image quality.
B) enhance the low subject contrast of anatomic structures.
C) increase metabolism of the kidneys and liver.
D) improve the contrast between high contrast structures such as bone.