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Insights into Imaging
Fig. 2 | Insights into Imaging

Fig. 2

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

Fig. 2

Intra-aortic balloon pump (IABP). Chest AP radiograph (a) demonstrating the upper radiopaque marker (white arrow) projecting over the aortic knob superior to the carina. This is the expected position based on radiography. Abdomen AP radiograph (b) in the same patient demonstrates the IAPB with the inferior radiopaque marker (white arrow) projecting over the L1-L2 Intervertebral space, which is low. Oblique coronal CT (c) demonstrates the IAPB in the descending aorta. The radiopaque marker is visible within the descending aorta about 5 cm from the origin of left subclavian artery. Sagittal CT abdomen image (d) demonstrates the low position of the IABP with its inferior radiopaque marker (black marker) below the level of the diaphragm at the level of the L1–L2 Intervertebral space. This can be seen when there is anatomic-to-balloon length mismatch

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