Edie Baskin Bronson and Richard Skip Bronson CBF Laboratory

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  • The Cerebral Blood Flow (CBF) Laboratory, which began as a Department of Neurosurgery program, has been added as the newest facility to the roster of Ronald Reagan UCLA Medical Center diagnostic laboratories.


  • The CBF Laboratory provides assessment of the cerebral circulation using Transcranial Doppler and Xenon-133 CBF measurement.
  • Measures blood flow velocity in cerebral arteries, including internal carotid, ophthalmic, anterior/middle/posterior cerebral, vertebral and basilar.
  • Equipment is portable and therefore available bedside in the intensive care unit, wards, operating room and emergency room.

Current indications

  • Detection of intracranial artery stenosis, including transient ischemic attack (TIA) and stroke patients.
  • Pre-operative assessment of cerebral collateral circulation.
  • Monitoring of cerebral vasospasm, including aneurysm and trauma patients.
  • Assessment of cerebral arteriovenous malformations (AVMs).
  • Confirmation of cerebral circulatory arrest, or brain death.

Special Applications

  • Cerebral emboli detection.
  • Cerebrovascular reserve (stroke risk) determination.
  • Intraoperative monitoring, including carotid endarterectomy, cardiac surgery, other procedures threatening cerebral circulation.