Which target group in this image of a tissue-mimicking phantom is used for gray-scale evaluation?

Which target group in this image of a tissue-mimicking phantom is used for gray-scale evaluation?

A . Option A
B . Option B
C . Option C
D . Option D

View Answer

Answer: C

Explanation:

Gray-scale evaluation in a tissue-mimicking phantom involves assessing the uniformity and accuracy of the gray-scale representation of the tissues.

Option C typically contains structures designed to test the machine’s ability to accurately depict varying levels of echogenicity, which is essential for proper gray-scale evaluation.

This area will have a range of echo intensities that help in determining the contrast resolution and the ability of the system to distinguish between different tissue types based on their gray-scale values.

Reference: ARDMS Sonography Principles and Instrumentation guidelines on tissue-mimicking phantoms and image quality evaluation.