Simply, Transcranial Doppler (TCD) is a non invasive pulse wave ultrasonography of the intracranial blood circulation and it is one of the most rapidly growing sciences in neurosonology over the last decade. The technique is very simple and has a high index of sensitivity and specifity.

TCD is used to assess blood flow velocity in the major basal intracranial arteries on a real time, beat-to-beat basis. Blood flow velocity is calculated and used to make determinations about intracranial hemodynamics. Additional diagnostic criteria, such as flow direction, change or absence of signal, differences in velocity values on left and right sides, waveform shape, vasomotor reactivity, high intensity transient signal detection and others, are also used in interpretation.

TCD technology added a lot of information in understanding disease process affecting the intracranial vessels. It is widely used in assessing and following extra and intracranial vessels in a wide range of diseases, including stroke, subarachnoid hemorrhage, internal carotid artery stenosis, Moyamoya disease, sickle cell disease, mitochondrial cytopathies, arteriovenous malformations, patent foramen ovale and many others. Also, the technique of color coated transcranial duplex made it possible to visualize the intracranial vessels and brain midline structures with a reliable index of accuracy and opened a wide door for new future research. In a matter of fact, TCD is your stethoscope to the brain.

This workshop is limited only to fellows engaged in stroke fellowship, and is by invitation


Session 1:

Introduction to TCD:

Moderator: Dr. Nouf Al-Rishi

9:00-9:30 amTCD PrinciplesDr. Waleed Khoja
9:30-10:00 amTCD ApplicationsDr. Waleed Khoja
10:00-10:30 amInsights into the latest technological advancements Networking opportunitiesFederico Lotti


Break: 10:30 – 11:00 am


Session 2:

TCD demonstration/Research:

Moderator: Dr. Waleed Khoja

11:00 – 11:15 amTCD SimulatorDr. Waleed Khoja
11:15 – 11:45 amHow to do itMr. Fahad AL-Shammari
11:45-12:00 noonTCD research opportunitiesDr. Nouf AL-Rishi
Lunch/Prayer: 12:00 – 1:00 pm


Hands on Job:

1:00 -4:00 pm

Team A; Dr. Nouf AlRishi, Federico Lotti

Team B: Mr. Fahad Alshammari

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