TCD and Headache

TCD in Intensive Care

Transcranial Doppler (TCD) ultrasonography is a technique that uses a hand-held Doppler transducer (placed on the surface of the cranial skin) to measure the velocity and pulsatility of blood flow within the intracranial and the extracranial arteries. Introduced by Rune Aaslid in 1982, it has become indispensable in clinical practice. The main obstacle to ultrasound penetration of the skull is ...

Consensus on Microembolus Detection by TCD

Transcranial Doppler ultrasound is capable of detecting microembolic material, both gaseous and solid, within the intracranial cerebral arteries. To avoid discrediting this promising and exciting new technique, experts in this field met in January 1997 in Frankfurt, Germany, to discuss the limitations and problems of embolus detection and to determine guidelines for its proper use in clinical p...

ACUPUNCTURE AND HEADACHE About headache

Headache is one of the most frequent reasons for medical consultations, in both general practice and neurology clinics.(Steiner 2007) Migraine has been covered in a separate Fact Sheet so this one will focus on tension-type headache. These occur in up to around 80% of the UK adult population(Steiner 2007), and are more prevalent in women (65% of cases in one survey).(Friedman 1954) Symptoms beg...

TCD velocities and arterial pressures in AVM feeder vessels.

Noninvasive estimation of intracranial pressure using TCD

Usefulness of transcranial Doppler-derived cerebral hemodynamic parameters in the noninvasive assessment of intracranial pressure. Author Wakerley BR1, Kusuma Y, Yeo LL, Liang S, Kumar K, Sharma AK, Sharma VK. Content/Summary Abstract BACKGROUND: Transcranial Doppler (TCD) ultrasonography is a noninvasive bedside tool that can evaluate cerebral blood flow hemodynamics in major intracranial arte...