Human Anatomy, Physiology, and Medicine. Anything human!
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Why is it that x-ray is not an efficient tool to use to image the brain? This is a snippet from my notes; please help me make sense of it.
--> COMPUTED TOMOGRAPHY
Why X-rays don't work for the brain
- they penetrate body and then absorbed by "radiopaque" tissues
- absorbed, but DO NOT PASS THROUGH.
- Radiodensity (or radiopacity) refers to the relative inability of electromagnetic radiation, particularly X-rays, to pass through a particular material.
- using X-ray sensitive film to make 2D img's of shadows formed by these tissues in body
- suitable for skull's bones, but doesn't work for brain
¬- brain has multifarious radiopacity, and it its complexity is seen in 3D (third dimension)
=> cannot get as much info from a 2D X-ray img.
=> can only really capture the complexity of the brain structure by taking 3D shots of it.
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