Fig 5. Transcranial Doppler waveforms obtained from single patient pre and post total artificial heart (TAH) implantation.
(A). Preimplantation baseline 24 hours prior to implantation. (B) 48 hours post implantation with TAH: Waveforms resemble hemodynamics of unassisted patient. High-intensity transient signal is observed during recording.
LMCA = left middle cerebral artery; Peak = peak systolic velocity; Dias = diastolic velocity; Mean = mean flow velocity; P.I. = pulsatility index.