Cerebral Aneurysm Coil Embolization with a Coil-Assisted Technique Using a Small-Diameter Helical Coil

Area of Science:

• Neurosurgery
• Interventional Neuroradiology
• Vascular Neurology

Background:

• Cerebral aneurysms pose significant risks, including rupture and hemorrhage.
• Coil embolization is a common treatment, but preserving adjacent branch arteries can be challenging.
• Intracranial branch-incorporated aneurysms require specialized techniques for safe and effective treatment.

Purpose of the Study:

• To introduce and evaluate a novel coil-assisted technique for preserving branch arteries during cerebral aneurysm embolization.
• To assess the feasibility and safety of this technique in treating complex aneurysms.

Main Methods:

• A coil-assisted technique using a small diameter helical coil was developed.
• This coil supports a frame coil to protect the branch artery at the aneurysm neck or dome.
• Three cases of cerebral aneurysms (two ruptured, one unruptured) with incorporated branch arteries were treated.

Main Results:

• The coil-assisted technique successfully preserved the branch artery in all three treated cases.
• The technique was applied to internal carotid artery-posterior communicating artery and anterior communicating artery aneurysms.
• Branch arteries originating from the aneurysm neck or dome were successfully preserved.

Conclusions:

• The coil-assisted technique is a feasible and safe method for coil embolization of intracranial branch-incorporated aneurysms.
• This technique offers a valuable solution for preserving branch arteries that are difficult to manage with conventional methods.
• It expands treatment options for complex cerebral aneurysms requiring coil embolization.