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C T Imaging Of Acute Stroke
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C T Imaging Of Acute Stroke
1.
CT Imaging of
acute strokeArun JagannathanVascular and Interventional Radiology
2.
Hemorrhagic Stroke www.radclinic.com
3.
Thromboembolic Stroke CT
Perfusion Rapid qualitative/quantitative evaluation of cerebral perfusion CBF = Cerebral Blood Flow CBV = Cerebral Blood Volume MTT = Mean Transit Time CBF = CBV/MTT www.radclinic.com
4.
Thromboembolic Stroke www.radclinic.com
5.
CT Perfusion (CTP)
Obtained by monitoring first pass of contrast agent bolus through cerebral vasculature Linear relationship between contrast agent concentration and attenuation (density) ROI = Region of Interest www.radclinic.com
6.
CTP www.radclinic.com
7.
CTP Ischemic Thresholds
CBF 0-10 ml/100 g/min CBV 0-1.5 ml/100 g MTT > 6 seconds Penumbra Threshold 2.5 ml/ 100 g www.radclinic.com
8.
Large Infarcted Core
www.radclinic.com CBF CBV
9.
Penumbra of Salvageable
Tissue www.radclinic.com
10.
www.radclinic.com
11.
CTA www.radclinic.com
12.
www.radclinic.com
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