Welcome to Classifications and Online Calculators in Radiology

This site was build along with the Atlas of Radiology Images to support your knowledge in radiology.

You will find here:

that are used in radiology and related fields with free access.

Moreover:

  • Some pages are accompanied by illustrations
  • All pages contain tags for easy navigation
 

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The concept of this website is based on a previous site that was founded in 2008 and is still up and running. The website is composed as a book, where all sources are properly referenced, according to a good practice in scientific publications.

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    Subarachnoid hemorrhage - Fisher CT grading scale of subarachnoid bleeding

    Fisher CT grading scale is used to grade severity of intracranial subarachnoid hemorrhage associated with rupture of an intracranial aneurysm. This scale predicts the risk of subsequent arterial spasms.

    Group Description
    Group I no hemorrhage
    Group II subarachnoid hemorrhage <1mm thick
    Group III subarachnoid hemorrhage >=1mm thick
    Group IV intracerebral or intraventricular hemorrhage with diffuse or no subarachnoid hemorrhage of any thickness

    References:

    1. Fisher CM, Kistler JP, Davis JM. Relation of cerebral vasospasm to subarachnoid hemorrhage visualized by computerized tomographic scanning.Neurosurgery. 1980;6:1–9.
    2. Meyers PM, Schumacher HC, Higashida RT, Derdeyn CP, Nesbit GM, Sacks D, et al. Reporting Standards for Endovascular Repair of Saccular Intracranial Cerebral Aneurysms. Stroke. 2009 May 1;40(5):e366–e379.
    3. Hacein-Bey L, Provenzale JM. Current Imaging Assessment and Treatment of Intracranial Aneurysms. American Journal of Roentgenology. 2011 Jan;196(1):32–44
    4. Rosen DS, Macdonald RL. Subarachnoid Hemorrhage Grading Scales. Neurocrit. Care. 2005;2:110-118.

    Updated 17/11/2013 20:08 by Lambert
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