* Generate a dynamic mapping of the distribution of iodine within the cerebral parenchyma in the patient suspected of acute ischemic disorder with the CT spectral scanner. * Correlate the anomalies of iodine mapping to the other parameters acquired during the classic dynamic infusion phase to define the ischemic area (MTT higher and rCBV normal) versus infarcted zone (MTT higher and rCBV decreased)
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
28
Head spectral CT
Cliniques universitaires saint Luc
Brussels, Belgium
Cerebral Blood Volume (CBV)
CBV is measured in units of milliliters of blood per 100 g of brain and is defined as the volume of flowing blood for a given volume of brain.
Time frame: from start of the study procedure (CT scan) through end of study procedure (from 15 minutes to 30 minutes)
Mean Transit Time (MTT)
MTT is measured in seconds and defined as the average amount of time it takes blood to transit through the given volume of brain.
Time frame: rom start of the study procedure (CT scan) through end of study procedure (from 15 minutes to 30 minutes)
Cerebral Blood Flow (CBF)
CBF is measured in units of milliliters of blood per 100 g of brain tissue per minute and is defined as the volume of flowing blood moving through a given volume of brain in a specific amount of time.
Time frame: rom start of the study procedure (CT scan) through end of study procedure (from 15 minutes to 30 minutes)
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