Operating instructions

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Perfusion CT
This is an application software package for the quan-
titative evaluation of dynamic CT data of the brain
following injection of a highly concentrated iodine
contrast bolus. The main application is in the differen-
tial diagnosis and management of acute ischemic
stroke.
The Basics
• The software optimally supports the stringent time
and workflow requirements in an emergency setting
where time is brain.
• Parameters generated include among others cerebral
blood flow (CBF), cerebral blood volume (CBV), the
time to local perfusion onset (Time-to-Start) and the
time to local perfusion peak (Time-to-Peak).
• Example: A 44-year-old man was brought to the
hospital about 2 hours after the start of severe
neurological symptoms of stroke in the right hemis-
phere.
Perfusion CT