The basic technique for endovascular treatment of intracranial aneurysm is a simple method requiring a single microcatheter and a long enough detachable coil for the coil embolization. Key factors for technical success are stability of the microcatheter based on the direction of the parent artery in relation to the aneurysm. Additionaly, the appropriate selection of framing, filling and finishing coils is another important factor. If adjunctive techniques are required, balloon and or stent assisted methods are available. But in most instances, the simple method will suffice and is therefore the most important and basic strategy for endovascular treatment of intracranial aneurysms.
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