Additional file 2.

Typical Doppler flow wire positions in carotid (panel A) and coronary (panel B) arteries. Panel A shows subclavian 15 French ECMO cannula (long black arrow), carotid angiography performed through carotid guiding catheter (short black arrow) positioned in the ostium of left carotid artery (long white arrow) and the tip of the Doppler flow wire (short white arrow), also shown in the box detail without contrast agent injection. Panel B shows coronary angiography with left anterior descending (LAD) (small black arrow) and left circumflex arteries (LCx) (long black arrow) and similarly in detailed box a tip of the Doppler wire in the proximal straight part of LCx (black arrowhead). At the bottom shown typical Doppler wire tracings obtained during cardiac arrest and running VA ECMO from carotid (panel C, APV = 41 cm/sec) and coronary (panel D, APV = 22 cm/sec) arteries. APV = average peak value.

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Bělohlávek et al. Critical Care 2012 16:R50   doi:10.1186/cc11254