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Table 2 Physiologic and pathologic conditions that can modify TCCS Doppler indices [3]

From: Transcranial Doppler ultrasound in the ICU: it is not all sunshine and rainbows

 Raised intracranial pressure
 Decreased cerebral perfusion pressure
 Cerebral circulatory arrest
 Intracranial artery occlusion
 Advanced age (vessel stiffness)
 Anemia, fever, high cardiac output, arterial hypertension
 Intracranial artery stenosis
 Arteriovenous malformation
 Rewarming following hypothermia