Subarachnoid hemorrhage other imaging findings

Subarachnoid Hemorrhage Microchapters
Home
Patient Information
Overview
Classification
Pathophysiology
Causes
Differentiating Subarachnoid Hemorrhage from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
CT
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
AHA/ASA Guidelines for the Management of Aneurysmal Subarachnoid Hemorrhage (2012) Risk Factors/Prevention Natural History/Outcome Clinical Manifestations/Diagnosis Medical Measures to Prevent Rebleeding Surgical and Endovascular Methods Hospital Characteristics/Systems of Care Anesthetic Management Cerebral Vasospasm and DCI Hydrocephalus Seizures Associated With aSAH Medical Complications
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Subarachnoid hemorrhage other imaging findings On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Subarachnoid hemorrhage other imaging findings All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Subarachnoid hemorrhage other imaging findings
CDC on Subarachnoid hemorrhage other imaging findings
Subarachnoid hemorrhage other imaging findings in the news
Blogs on Subarachnoid hemorrhage other imaging findings
Directions to Hospitals Treating Subarachnoid hemorrhage
Risk calculators and risk factors for Subarachnoid hemorrhage other imaging findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [2]

Other imaging findings

Once a subarachnoid hemorrhage is confirmed, the next question is about its origin. CT angiography (using radiocontrast) to identify aneurysms is generally the first step, as invasive angiography (injecting radiocontrast through a catheter advanced to the brain arteries) has a small rate of complications but is useful if there are plans to obliterate the source of bleeding, such as an aneurysm, at the same time.

Digital-subtraction cerebral angiography

Digital-subtraction cerebral angiography is used in following conditions:

• In patients with uncertain diagnosis after CT scan and LP
• In patients with septic endocarditis and SAH to search for mycotic aneurysms
• To provide surgical information such as:
  • Cerebrovascular anatomy
  • Aneurysm location and source of bleeding
  • Aneurysm size and shape
  • Relation of the aneurysm to the parent artery and perforating arteries
  • Presence of multiple or mirror aneurysms