Lower numerical values of axial resolution indicate improved image accuracy. Which option best completes the statement?

Lower numerical values of axial resolution indicate improved image accuracy. Which option best completes the statement?

• A. Unclear
• B. Improved
• C. Unchanged
• D. Degraded

Answer: (B)

Axial resolution is the ability to distinguish two reflectors that lie along the ultrasound beam’s path. When the numerical value for axial resolution is lowered, the minimum separable distance becomes smaller, so two closely spaced structures can be seen as distinct rather than blurred together. This directly improves the accuracy of the image because finer details along the beam axis are resolved better. So the statement is completed with “Improved.” If the value were larger, resolution would worsen, making the image less accurate.

Axial resolution is the ability to distinguish two reflectors that lie along the ultrasound beam’s path. When the numerical value for axial resolution is lowered, the minimum separable distance becomes smaller, so two closely spaced structures can be seen as distinct rather than blurred together. This directly improves the accuracy of the image because finer details along the beam axis are resolved better. So the statement is completed with “Improved.” If the value were larger, resolution would worsen, making the image less accurate.