Long-term MRI findings of patients with embolized cerebral aneurysms.

Background: Long-term follow-up studies after endovascular treatment for intracranial aneurysm are still rare and inconclusive. Parenchymal infarctions related to aneurysms have mostly been studied in patients with subarachnoidal hemorrhage (SAH) but infarction rates in patients with endovascularly treated unruptured aneurysms have been little studied.

Purpose: To determine the frequency of permanent parenchymal lesions as detected in magnetic resonance imaging (MRI) in patients treated with endovascular coiling and to assess aneurysm-related infarctions after the initial treatment period.

Long term outcome after subarachnoid haemorrhage of unknown aetiology.

Background And Purpose: The aim of this study was to assess the long term outcome after non-aneurysmal subarachnoid haemorrhage (SAH).

Methods: 1154 patients with SAH were treated in our hospital between 1989 and 1999. From this patient population, 97 patients had a non-aneurysmal SAH.