Our Neurovascular Ultrasound Laboratory provides advanced and comprehensive non-invasive neurovascular imaging and physiologic testing to evaluate intracranial and extracranial vessels.
These studies support the diagnosis, monitoring, and management of cerebrovascular diseases and play a vital role in identifying conditions that increase the risk of stroke.
As an integral part of patient care, education, and research, our mission is to deliver accurate, timely, and evidence-based diagnostic evaluations that help improve outcomes for patients with cerebrovascular diseases.
Through access to our specialized laboratory, patients benefit from earlier diagnosis, radiation-free monitoring, and the expertise of highly trained professionals who work closely with their healthcare providers. This collaborative approach helps prevent serious complications and support informed medical decision-making.
We provide services for both outpatients and inpatients, ensuring seamless continuity of care across hospital and clinic settings. All studies are performed by two experienced Neurovascular Technologists and subsequently interpreted by a board-certified Vascular Neurologist with further Registered Physician in Neurovascular Interpretation (RPNI) certification.
The laboratory is directed by Felix S. Guerra-Castanon, M.D., RNPI, who oversees clinical quality and ensures the highest standards of care.
Services Offered
- Carotid Duplex Ultrasound
- Transcranial Doppler
- Transcranial Doppler with emboli detection
- Transcranial Doppler with microbubble study for PFO
- Transcranial Doppler with vasomotor reactivity
- Transcranial Doppler with head version for Bow-hunter's syndrome
- Temporal Artery Ultrasound for Giant Cell Arteritis
Our Team
Felix S. Guerra-Castanon, M.D., RPNI
Director, Neurovascular Laboratory
Assistant Professor
Toby Gropen, M.D., RPNI
Director, UAB Comprehensive Neurovascular and Stroke Center
Professor
Christopher Medders, BSN, R.N., MSHQS, SCRN
Neurovascular Laboratory Nurse Manager
Alice Robinson-Vaughn, RVT, NVS, B.S.
Lead Neurovascular Ultrasonographer
Jenecia Washington, RVS
Neurovascular Ultrasonographer