What is the CT number range for muscle?

The CT number range for muscle generally falls between 35 to 50 Hounsfield Units (HU). This range reflects the moderate radiodensity of muscle tissue compared to other types of soft tissue and structures within the body. Muscle has a higher density than fat, which typically has CT numbers ranging from -100 to -50, and a lower density than many organs, like liver or bone, which can have significantly higher CT numbers.

Understanding the CT numbers is crucial in imaging as it provides a quantitative measure of the attenuation properties of different tissues, allowing radiologists and technologists to differentiate between various types of tissues. The specified range for muscle (35 to 50) fits within the normal limits observed in clinical practice, making it a reliable benchmark for reference.