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Computed Tomographic (CT) Perfusion and CT Angiography as Screening Tools for Vasospasm Following Subarachnoid Hemorrhage

This study has been completed.
Information provided by (Responsible Party):
Michelle Miller-Thomas, MD, Washington University School of Medicine Identifier:
First received: August 19, 2009
Last updated: December 8, 2014
Last verified: December 2014
Cerebral vasospasm is a devastating complication of subarachnoid hemorrhage after cerebral aneurysm rupture leading to cerebral ischemia and potentially cerebral infarction. The current gold standard diagnostic imaging study for cerebral vasospasm is catheter cerebral angiography, an invasive diagnostic procedure carrying a complication rate of 1-2% per procedure. Computed tomographic perfusion imaging (CTP) and computed tomographic angiography (CTA) are noninvasive diagnostic imaging studies frequently utilized in the evaluation of embolic and thrombotic cerebral infarct. The investigators hypothesize that CTP and CTA may be utilized as screening tools for cerebral vasospasm following aneurysmal subarachnoid hemorrhage requiring treatment and provide prognostic information.

Cerebral Vasospasm
Cerebral Aneurysm
Subarachnoid Hemorrhage

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Computed Tomographic Perfusion and Computed Tomographic Angiography as Screening Tools for Vasospasm Following Subarachnoid Hemorrhage

Resource links provided by NLM:

Further study details as provided by Washington University School of Medicine:

Primary Outcome Measures:
  • CT perfusion parameters [ Time Frame: at time of catheter angiogram ]

Secondary Outcome Measures:
  • Disposition at discharge [ Time Frame: At time of hospital discharge ]
  • vessel narrowing by CT angiography [ Time Frame: at time of catheter angiogram ]

Enrollment: 4
Study Start Date: September 2009
Study Completion Date: December 2011
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Patients undergo CTA/CTP imaging prior to cerebral angiography


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients admitted to the neurological intensive care unit with subarachnoid hemorrhage due to rupture of a cerebral aneurysm

Inclusion Criteria:

  • subarachnoid hemorrhage after aneurysm rupture

Exclusion Criteria:

  • renal insufficiency
  • pregnancy
  • contrast reaction
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Please refer to this study by its identifier: NCT00962546

United States, Missouri
Barnes-Jewish Hospital
St. Louis, Missouri, United States, 63110
Sponsors and Collaborators
Washington University School of Medicine
Principal Investigator: Michelle Miller-Thomas, MD Washington University School of Medicine
  More Information

Responsible Party: Michelle Miller-Thomas, MD, Assistant Professor, Washington University School of Medicine Identifier: NCT00962546     History of Changes
Other Study ID Numbers: HRPO 09-0950
Study First Received: August 19, 2009
Last Updated: December 8, 2014

Keywords provided by Washington University School of Medicine:
cerebral aneurysm
subarachnoid hemorrhage
cerebral vasospasm
computed tomographic perfusion
computed tomographic angiography

Additional relevant MeSH terms:
Intracranial Aneurysm
Brain Diseases
Subarachnoid Hemorrhage
Vasospasm, Intracranial
Pathologic Processes
Vascular Diseases
Cardiovascular Diseases
Intracranial Hemorrhages
Cerebrovascular Disorders
Central Nervous System Diseases
Nervous System Diseases
Intracranial Arterial Diseases processed this record on May 25, 2017