PMC5791503_01
Mid-esophageal-four-chamber view with inflow cannula of HeartWare device (white arrow)
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F1
Two-dimensional TEE post-cardiopulmonary bypass and after HVAD implantation showed a normal apical positioning of the inflow cannula in the mid-esophageal four-chamber view [Figure 1].
Mid-esophageal ascending aorta long-axis view with outflow cannula of HeartWare device (white arrow)
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F2
The outflow cannula was visualized in mid-esophageal ascending aorta long axis view with flow confirmed using color flow Doppler [Figure 2].
Spectral velocity pattern of the outflow cannula of HeartWare device showing systolic (S) and diastolic (D) flow
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F3
The spectral velocity pattern in an outflow cannula can also be seen showing characteristic systolic peak and diastolic nadir [Figure 3].
Mid-esophageal four-chamber view with inflow cannula of HeartWare device showing centrifugal color Doppler pattern within the device (arrows)
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F4
On further examination, a centrifugal color flow pattern can be seen from the inflow cannula apex, diverging outward to take the shape of the HVAD flow chamber, consistent with the centrifugal blood flow within a HVAD device [Figure 4].