Fig. 7From: CT and chest radiography in evaluation of mechanical circulatory support devices for acute heart failureMalposition of Impella device. AP Chest radiograph with CLAHE filter (a) demonstrates a left ventricle Impella device with its tip projecting over the left ventricle (black arrow). Axial contrast enhanced CT (b) demonstrating the pigtail portion of the Impella device is entangled within the papillary muscle apparatus (black arrow). This finding is not detected on radiograph but can be identified on a CT. (CLAHEācontrast limited adaptive histogram equalization)Back to article page