Figure 4.
Images from a 10- to 12-year-old patient with a giant dissecting aneurysm located in the basilar artery (case 4). (A,B) Preoperative MRI showing a basilar giant dissecting aneurysm with compression of the brainstem (black arrow). (C,D) Preoperative anteroposterior angiograms of the LVA (C) and RVA (D) confirming a giant dissecting aneurysm located in the basilar artery. (E) Intraprocedural unsubtracted view showing successful insertion of the PED (3.5 × 35 mm) (black arrow). (F,G) Immediately postoperative anteroposterior angiograms of the LVA (F) and RVA (G) demonstrating excellent reconstruction of the basilar artery and evident contrast stasis in the lumen of the aneurysm. (H) CT performed 1 day after the procedure confirming no indications of SAH. LVA, left vertebral artery; RVA, right vertebral artery; PED, pipeline embolization device; SAH, subarachnoid hematoma.