Houston Methodist. Leading Medicine.
Houston Methodist. Leading Medicine

Eddy Scurlock Stroke Center

Make an Appointment

To make an appointment call 713-441-5048

John Volpi, MD Director
Board Certified in Neurosonology

Rasadul Kabir, MBBS, RVT


Transcranial Doppler ultrasonography image

Collaborative Cerebral Blood Flow Lab

The Collaborative Cerebral Blood Flow Clinical Lab serves patients with a variety of neurological disorders, including stroke and transient ischemic attack (TIA). Physicians perform TCD with bubble by injecting agitated normal saline(not contrast) to detect PFO(patent foramen ovale) in heart.

TCD measures blood velocity in the head and neck, which aids in the management of stroke and is useful for risk assessment in a variety of cerebrovascular and neurologic diseases. The Carotid Ultrasound (C/U) is an ultrasound that shows whether plaque has narrowed your carotid arteries.  Plaque can slow down or block the flow of blood through the artery. A standard carotid ultrasound shows the structure of your carotid arteries.

Studies Performed

  • Transcranial Doppler Ultrasound with/without bubble
  • Carotid Ultrasound