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Insights into Imaging
Fig. 6 | Insights into Imaging

Fig. 6

From: CT and chest radiography in evaluation of mechanical circulatory support devices for acute heart failure

Fig. 6

Malposition of Impella pump. AP Chest radiograph with CLAHE filter (a) with an Impella CP device with the outlet port in the aortic arch (white arrow) and the inlet port at the level of the aortic valve (dashed arrow). Contrast enhanced CT coronal image (b) at the level of the LVOT demonstrates high/proximal placement of Impella device with the blood inlet port at the level of the aortic valve. Contrast is seen only in the aorta but not in the left ventricle. This is due to backfilling from the VA ECMO cannula in the femoral artery. (CLAHE—contrast limited adaptive histogram equalization, LVOT—left ventricle outflow tract, VA ECMO—veno-arterial extracorporeal membrane oxygenation)

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