Premature Destruction of Microbubbles during Voiding Urosonography in Children and Possible Underlying Mechanisms: Post Hoc Analysis from the Prospective Study

Figure 2

Subject 6: 11-month-old boy, high anxiety and constantly crying during the examination. (a) Filling the urinary bladder (white long arrows) with the contrast agent. (b) Urinary bladder (white long arrows) a few seconds after removal of the catheter, beginning of the microbubbles destruction. (c) Urinary bladder (white long arrows) 1 minute after removal of the catheter. (d) Urinary bladder (white long arrows) 2 minutes after removal of the catheter, with visible areas of absent echoes due to destroyed microbubbles (short white arrows). Urinary bladder (white long arrows) 3 minutes after removal of the catheter with visible single echoes from not destroyed microbubbles (short white arrows).

(a)

(b)

(c)

(d)

(e)