Blood Can Be Very Bad…indeed

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    Blood Can Be Very Bad…indeed

    Interpreting head CT’s can be daunting.  But it doesn’t have to be.  Just remember, “Blood Can Be Very Bad”.

    Blood

    –       blood up to 1 week old looks hyperdense to brain

    –       blood 1-4 weeks old looks isodense to brain

    –       blood after 4 weeks old looks hypodense to brain

    –       Types of intracranial hemorrhage: epidural, subdural, intraparenchymal/intracerebral, intraventricular, or subarachnoid

    Cistern

    –       Is there blood?

    –       Is it open?

    –       Types of cisterns to identify: sylvian, quadrigeminal, suprasellar, and circummesencephalic

    Brain

    –       Check for symmetry

    –       Check for grey-white differentiation

    –       Check for shift

    –       Check for hyper/hypodensity

    Ventricles

    –       Is there blood?

    –       Is there compression/shift?

    –       Is there dilation?

    –       Type of ventricles to identify: lateral, 3rd and 4th ventricles

    Bone

    –       Fracture?

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