MCQ – 56959

In computed tomography (CT), the attenuation values are measured in Hounsfield units (HU). An attenuation value of ‘0’ (zero) HU corresponds to:

Correct Answer � A Explanation

Ans. Water

The density of tissue is represented using the Hounsfield scale, with water having a value of zero Hounsfield units (HU), tissues denser than water having positive values, and tissues less dense than water having negative values