Fig. 3

a A 5Fr-guiding catheter was placed in the left internal carotid artery (ICA) with stenosis of about 40% in the left carotid bulb. The guiding catheter seemed to be stuck in the stenotic segment of the ICA (white dots inside of a white circle). b A single microcatheter (pre-shaped Excelsior SL-10 45 degree) was steam-shaped into a “Z” shape and navigated to the left MCA. We deployed a Neuroform Atlas stent (3.0 mm × 15 mm) in the left M1 (black arrowheads) and selected the aneurysm with the same microcatheter using the cell-through technique. c A neck remnant was seen in the final angiography after coiling. (d) On 6-month follow-up angiography, the aneurysm was completely occluded