Which term describes increased attenuation at the tip of the red arrow?

Which term describes increased attenuation at the tip of the red arrow?

• A. Hyperattenuation
• B. Hyperintensity
• C. Radiopaque
• D. Hypoattenuation

Answer: (A)

In CT imaging, attenuation is how much the X-ray beam is reduced as it passes through tissue. When a spot stands out as brighter than its surroundings, it shows increased attenuation. That localized brightness is described as hyperattenuation. Hyperintensity belongs to MRI terminology and doesn’t apply to CT attenuation. Hypoattenuation would be a darker area, indicating less attenuation. Radiopaque is a broader term for dense materials that block X-rays, but the precise description for a localized increase in attenuation on CT is hyperattenuation.

In CT imaging, attenuation is how much the X-ray beam is reduced as it passes through tissue. When a spot stands out as brighter than its surroundings, it shows increased attenuation. That localized brightness is described as hyperattenuation. Hyperintensity belongs to MRI terminology and doesn’t apply to CT attenuation. Hypoattenuation would be a darker area, indicating less attenuation. Radiopaque is a broader term for dense materials that block X-rays, but the precise description for a localized increase in attenuation on CT is hyperattenuation.