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Table 1 Physiological or pathological factors that contribute to Transcranial Doppler Ultrasound (TCD) flow velocity or waveform alterations

From: Mechanisms of Transcranial Doppler Ultrasound phenotypes in paediatric cerebral malaria remain elusive

  1. TCD findings are dependent on cerebral perfusion pressure (CPP) and inversely proportional to the cerebrovascular resistance (CVR) [15,16,17,18,19,20,21]
  2. ǂTo cause low flow, vasospasm would need to result in > 80% vessel lumen diameter reduction
  3. *If associated with waveform characteristics such as systolic spikes and absent or reversed diastolic flow
  4. ¥It is unknown if PRES represents vasodilation or vasoconstriction in the posterior circulation
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Malaria Journal

ISSN: 1475-2875

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