Pseudoendoleak is a recently described color Doppler ultrasound phenomenon caused by spurious color signal in the aneurysm sac following endovascular aneurysm repair (EVAR).
Radiographic features
Pseudoendoleak is defined as flow signal on color Doppler in the aneurysm sac following EVAR. The spurious nature of the signal can be confirmed by the absence of contrast enhancement in the same region (e.g. by CEUS, or CT angiography). It has been proposed that the phenomenon is the result of the agitation of incarcerated fluid within the aneurysm sac 1.