CT

• What is a CT scan?

  . Use x-rays -> cross sections of the brain

  . Dense structures absorb more radiation -> lighter
• How can CT scans be used to investigate brain structure and function??

  . Can identify larger structures but not function

  . It can help identify damaged parts (hence find function)
• How are CT scans used for diagnosis?

  . Can identify bleeding in brain

  . Blood is more dense -> lighter