FIG 4. Digital radiographs of experimental simulation by using Prowler-Plus microcatheter with GDC-10 ultrasoft, 4 mm x 6 cm.

A, After coil detachment, before removal of pusher-wire. Note position of coil end (black arrow) within microcatheter tip.

B, After brisk withdrawal of pusher wire. Note minimal coil retraction into microcatheter (white arrow).