engleski

Differentiating ischemic and haemorrhagic strokes with transcranial Doppler ultrasound

TCD obtains painless real time intracranial circulation information, at bedside, and is a very useful non-invasive method. It can be used in locating the occluded or stenotic blood vessel, but can it also be used in assessment of cerebral circulation in haemorrhagic strokes? The aim of this study is to assess TCD technique in differentiating ischemic stroke from hemorrhagic stroke. We examined 101 stroke patients during a 6 month period. All patients were examined using TCD technique in assessment of 11 cerebral blood vessels. MBFV were measured in CS, ACM, ACA, both ACP, both vertebral arteries and AB. For all patients risk factor assessment was made for hypertension, cholesterol levels, diabetes mellitus, smoking, acute myocardial infarction, atrial fibrillation, migraine, and TIA. There were 101 patients. 73 patients had ischemic stroke, 13 patients had haemorrhagic stroke, 4 had SAH and 11 had TIA. Mean age was 72 years. 36 had a complete TCD report, 40 had values reported from one side of Willis’ circle, and 54 had all values of vertebrobasilar system. For the remaining patients all values were not obtainable due to technical difficulties. Measured values showed statistically significant difference between haemorrhagic stroke and TIA, between haemorrhagic stroke and ischemic stroke. Differences were observed in right ACM, and in all cases of haemorrhagic strokes right ACMshowed lower MBFV than compared conditions. MBFV in right ACM were found to be lower in haemorrhagic stroke compared to TIA, and haemorrhagic stroke compared to ischemic stroke.

differentiating stroke; ischemic stroke; haemorrhagic stroke; TCD; transcranial Doppler ultrasound

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