What contrast is use in brain?

In brain imaging, contrast refers to the differences in signal intensity that help distinguish between various tissues and structures. Commonly used contrasts include T1 and T2-weighted imaging in MRI, which highlight different properties of brain tissues. Additionally, contrast agents like gadolinium can be injected to enhance visualization of blood vessels and abnormalities. These contrasts aid in diagnosing conditions such as tumors, strokes, and neurodegenerative diseases.