In CT imaging, a higher Hounsfield unit indicates higher density; which tissue exemplifies high density?

In CT imaging, a higher Hounsfield unit indicates higher density; which tissue exemplifies high density?

• A. Air
• B. Bone
• C. Muscle
• D. Fat

Answer: (B)

In CT imaging, higher Hounsfield units mean more X-ray attenuation and denser tissue. Bone has the greatest mineral content, so it attenuates X-rays the most and yields the highest HU values among common tissues. That makes bone the best example of high density in this context. Air is the least dense with very negative HU, fat is low density with negative to small positive HU, and muscle is moderately positive but still far less dense than bone. Thus bone clearly exemplifies high density.

In CT imaging, higher Hounsfield units mean more X-ray attenuation and denser tissue. Bone has the greatest mineral content, so it attenuates X-rays the most and yields the highest HU values among common tissues. That makes bone the best example of high density in this context. Air is the least dense with very negative HU, fat is low density with negative to small positive HU, and muscle is moderately positive but still far less dense than bone. Thus bone clearly exemplifies high density.