Fig. 4.

A Intravenous CEUS. B Arterial phase image of a contrast-enhanced CT. C Endocavitary CEUS with UCA injected through the nephrostomy. D Urographic phase image of a contrast-enhanced CT of a patient with ureteric injury and urinoma formation following a vascular bypass surgery. CEUS studies (A, C) definitively excluded communication between the fluid collection and the left iliac vascular graft. Although the subsequent CT (B, D) demonstrates similar findings, CEUS provided real-time imaging and instant diagnosis at patient’s bedside