Dislodgment of pressure rated PICC line post-contrast-enhanced CT is a known complication (8-15%) ^1,2 of power-injected intravenous contrast media. It is postulated that this is due to the saline flush during the contrast injection causing a sudden change in the viscosity leading to dislodgement.

It is a useful protocol to check the PICC before and afterwards via a low dose axial acquisition (similar to a HRCT) to ensure the PICC is safe to use.