Frequency affects which two aspects of imaging?

Frequency affects which two aspects of imaging?

• A. Resolution and Contrast
• B. Penetration and Image Quality
• C. Speed and Attenuation
• D. Wavelength and Propagation

Answer: (B)

Frequency controls the balance between detail and depth in imaging. Higher frequency waves have shorter wavelengths, which improves resolution and thus image quality, giving crisper, more detailed images. But they attenuate more quickly in tissue, so they don’t reach deep structures, reducing penetration. Lower frequency penetrates deeper but provides less fine detail, lowering image quality. This trade-off is why the two aspects affected by frequency are penetration and image quality.

Frequency controls the balance between detail and depth in imaging. Higher frequency waves have shorter wavelengths, which improves resolution and thus image quality, giving crisper, more detailed images. But they attenuate more quickly in tissue, so they don’t reach deep structures, reducing penetration. Lower frequency penetrates deeper but provides less fine detail, lowering image quality. This trade-off is why the two aspects affected by frequency are penetration and image quality.