Increasing the packing of small aneurysms with complex-shaped coils: an in vitro study.
Nine embolization experiments of a silicone aneurysm model were conducted by using helical and complex-shaped coils. Coils were introduced up to the point when the adjunct of a supplementary coil caused protrusion into the parent vessel. Packing ratios (volume of coils-aneurysm volume) ranged between 31% and 38%. Optimal packing was achieved with complex-shaped coils used in a concentric fashion. The complex-shaped coils allowed a better aneurysm filling than did helical coils.
Piotin
Michel
M
Department of Interventional Neuroradiology, Fondation Rothschild, Paris, France.
Iijima
Akira
A
Wada
Hajime
H
Moret
Jacques
J
D017542:Aneurysm, Ruptured / Q000628:therapy; D001672:Biocompatible Materials / Q000627:therapeutic use; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*; D010984:Platinum / Q000627:therapeutic use
D001672:Biocompatible Materials; D010984:Platinum