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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01919775
Recruitment Status : Completed
First Posted : August 9, 2013
Last Update Posted : August 9, 2013
Information provided by (Responsible Party):
Shunji MUGIKURA, Tohoku University

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.

Condition or disease
Subarachnoid Hemorrhage Cerebral Aneurysm Amnesia

Detailed Description:

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.

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Study Type : Observational [Patient Registry]
Actual Enrollment : 14 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Target Follow-Up Duration: 6 Years
Official Title: Basal Forebrain Amnesia After Surgery for Anterior Communicating Aneurysm: High Resolution 3-dimensional (3D) Magnetic Resonance (MR) Imaging Findings
Study Start Date : December 2007
Actual Primary Completion Date : July 2013
Actual Study Completion Date : July 2013

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. 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) ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients with amnesia following surgical treatment of the ACoA aneurysm.

Inclusion Criteria:

Clinical diagnosis of Amnesia

Exclusion Criteria:

Severe decreased intellectual function

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01919775

Sponsors and Collaborators
Tohoku University
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Study Director: Shoki Takahashi, Professor Department of Diagnostic Radiology, Tohoku University, Graduate School of Medicine, Sendai, Japan

Additional Information:

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Responsible Party: Shunji MUGIKURA, Principal Investigator, Associate professor of Departmetn of Diagnostic radiology, Tohoku University Identifier: NCT01919775     History of Changes
Other Study ID Numbers: tohoku-ACoA amnesia MRI
First Posted: August 9, 2013    Key Record Dates
Last Update Posted: August 9, 2013
Last Verified: August 2013

Additional relevant MeSH terms:
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Intracranial Aneurysm
Brain Diseases
Subarachnoid Hemorrhage
Pathologic Processes
Vascular Diseases
Cardiovascular Diseases
Intracranial Hemorrhages
Cerebrovascular Disorders
Central Nervous System Diseases
Nervous System Diseases
Intracranial Arterial Diseases
Memory Disorders
Neurobehavioral Manifestations
Neurologic Manifestations
Signs and Symptoms
Neurocognitive Disorders
Mental Disorders