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Fig. 5 | Critical Ultrasound Journal

Fig. 5

From: Point-of-care transcranial Doppler by intensivists

Fig. 5

Method for acquisition of transcranial Doppler. a Left side shows location of the trans-temporal window and its various sections: frontal, anterior, medial, and posterior. Right side illustrates Circle of Willis, with MCA highlighted. b Probe index mark orientation towards the patient’s anterior/front. c Typical 2D image of TCD from trans-temporal window with index mark to screen left, with bright echogenic contralateral temporal bone, and anechoic space of midline third ventricle. d Typical spectral Doppler velocity waveform from MCA, with steep systolic upstroke and step-down diastolic flow (typical mean velocity of 80 cm/s)

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