Clinical Trial: Amnesia After Surgery for Anterior Communicating Aneurysm： High Resolution Magnetic Resonance (MR) Imaging Findings

Study Status: Completed
Recruit Status: Completed
Study Type: Observational [Patient Registry]

Official Title: Basal Forebrain Amnesia After Surgery for Anterior Communicating Aneurysm： High Resolution 3-dimensional (3D) Magnetic Resonance (MR) Imaging Findings

Brief Summary: To clarify whether amnesia after treatment of anterior communicating aneurysm (ACoA)is related to infarcts caused by occlusion or damage of the perforating artery of the ACoA, we used 3.0-T 3D high resolution MR imaging to identify and localize infarcts in patients with amnesia following treatment of ACoA aneurysm.

Detailed Summary:

Cohort register is made by experienced neuropsychologists in our institute.

MR imaging and data storage is in the department of diagnostic radiology of our institute.

MR images are evaluated by two neuroradiologists using a work station.

Sponsor: Tohoku University

Current Primary Outcome: cerebral infarction identified and localized in the basal forebrain on MR imaging [ Time Frame: within 15 months from the aneurysmal treatment(an expected average 4 months) ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Tohoku University

Dates:
Date Received: August 7, 2013
Date Started: December 2007
Date Completion:
Last Updated: August 7, 2013
Last Verified: August 2013