CT head (subdural window)
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The subdural (blood) window can be used when reviewing a CT brain as it makes intracranial haemorrhage more conspicuous, and may help in the detection of thin acute subdural haematomas that are against the calvariumcalvaria. It is a wider setting than the standard non-contrast window, and there are a number of parameters that can be used:
- centre/level 50 HU; window 130 HU 1
- centre/level 70-100 HU; window 150-300 HU 3
-<p>The <strong>subdural (blood) window</strong> can be used when reviewing a CT brain as it makes <a href="/articles/intracranial-haemorrhage">intracranial haemorrhage</a> more conspicuous, and may help in the detection of thin acute <a href="/articles/subdural-haemorrhage">subdural haematomas</a> that are against the calvarium. It is a wider setting than the standard non-contrast window, and there are a number of parameters that can be used: </p><ul>-<li>centre/level 50; window 130 <sup>1</sup>- +<p>The <strong>subdural (blood) window</strong> can be used when reviewing a CT brain as it makes <a href="/articles/intracranial-haemorrhage">intracranial haemorrhage</a> more conspicuous, and may help in the detection of thin acute <a href="/articles/subdural-haemorrhage">subdural haematomas</a> that are against the calvaria. It is a wider setting than the standard non-contrast window, and there are a number of parameters that can be used: </p><ul>
- +<li>centre/level 50 HU; window 130 HU <sup>1</sup>
-<li>centre/level 70-100; window 150-300 <sup>3</sup>- +<li>centre/level 70-100 HU; window 150-300 HU <sup>3</sup>
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