The maximum attenuation score for "spot sign" on computed tomography (CT) angiography to identify patients with intracerebral hemorrhage (ICH) who are at high risk for hematoma expansion. Intracerebral hemorrhage (ICH), a CT angiography spot sign (i.e., active contrast extravasation) indicates a high risk of hematoma expansion
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Qualified
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Value List
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Code Description
0
120-179 HU
120-179 HU
1
>=180 HU
>=180 HU
Designations:
Designation:
Spot sign maximum attenuation score
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Designations:
Definition:
The maximum attenuation score for "spot sign" on computed tomography (CT) angiography to identify patients with intracerebral hemorrhage (ICH) who are at high risk for hematoma expansion. Intracerebral hemorrhage (ICH), a CT angiography spot sign (i.e., active contrast extravasation) indicates a high risk of hematoma expansion
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Document:
Thompson AL, Kosior JC, Gladstone DJ, Hopyan JJ, Symons SP, Romero F, Dzialowski I, Roy J, Demchuk AM, Aviv RI; PREDICTS/Sunnybrook ICH CTA Study Group (2009). Defining the CT angiography 'spot sign' in primary intracerebral hemorrhage. Can J Neurol Sci. 36(4):456-61; http://www.ncbi.nlm.nih.gov/pubmed/19650356 Delgado, Almondez et al, Stroke2009