Question

question 81 1 pts 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 take advantage of compton interactions and increase the amount of remnant radiation. enhance the low subject contrast of anatomic structures. improve gastric motility and digestion. improve the contrast between high contrast structures such as bone.

Explanation:

• Option 1: Contrast media doesn't aim for Compton interactions or remnant radiation increase.
• Option 2: Anatomic structures often have low subject contrast; contrast media enhances this for better visualization.
• Option 3: Contrast media isn't for gastric motility/digestion.
• Option 4: High - contrast structures (like bone) don't need contrast media for contrast improvement.

Answer:

B. enhance the low subject contrast of anatomic structures.