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Better With Ultrasound: Transcranial Doppler.

Chest, 2020
Transcranial Doppler (TCD) ultrasound is a noninvasive method of obtaining bedside neurologic information that can supplement the physical examination. In critical care, this can be of particular value in patients who are unconscious with an equivocal neurologic examination because TCD findings can help the physician in decisions related to more ...
Vincent I, Lau, Atul, Jaidka, Katie, Wiskar, Nicholas, Packer, J Elaine, Tang, Seth, Koenig, Scott J, Millington, Robert T, Arntfield   +7 more
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Cluster Headache: Transcranial Doppler Ultrasound and rCBF Studies

Cephalalgia, 1990
Transcranial Doppler and rCBF examinations were carried out in 25 cluster headache patients. Spontaneous and glyceryl trinitrate (nitroglycerin) provoked attacks were accompanied by a bilateral decrease in middle cerebral artery blood flow velocities.
A Dahl, R Nyberg-Hansen, Kjell Rootwelt   +2 more
exaly   +3 more sources

Transcranial ultrafast ultrasound Doppler imaging: A phantom study

Ultrasonics
Ultrafast ultrasound Doppler imaging facilitates the assessment of cerebral hemodynamics with high spatio-temporal resolution. However, the significant acoustic impedance mismatch between the skull and soft tissue results in phase aberrations, which can compromise the quality of transcranial imaging and introduce biases in velocity and direction ...
Qiandong Sun, Chen Jiang, Kailiang Xu
exaly   +3 more sources

Transcranial Doppler ultrasound

Neurology, 1990
Summary and critique. Advantages of method. TCD is a noninvasive test effective in monitoring blood velocities in large intracranial arteries. It uses small, potentially portable, relatively inexpensive equipment. The test can be repeated and therefore allows the detection of changes over time and after various physiologic studies or pharmacologie ...
L R, Caplan, L M, Brass, L D, DeWitt, R J, Adams, C, Gomez, S, Otis, L R, Weschler, G M, von Reutern   +7 more
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Transcranial Doppler Ultrasound and Magnetoencephalography in Migraine

Journal of Neuroimaging, 1993
Eighty subjects‐30 migraineurs during the attack, 30 patients in the interictal period, and 20 healthy volunteers‐were studied using two technologies for functional assessment: transcranial Doppler ultrasound and magnetoencephalography. Transcranial Doppler studies showed an increased mean flow velocity at rest (p < 0.05) in the middle cerebral ...
K, Rieke, C C, Gallen, L, Baker, D J, Dalessio, B J, Schwartz, A K, Torruella, S M, Otis   +6 more
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Evaluation of cerebrovascular spasm with transcranial Doppler ultrasound

Journal of Neurosurgery, 1984
✓ The use of an ultrasonic transcranial Doppler technique for noninvasive evalution of cerebral vasospasm is described. Middle cerebral arteries (MCA's), classified as spastic on angiography, demonstrated blood-flow velocity between 120 and 230 cm/sec.
R, Aaslid, P, Huber, H, Nornes
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Noninvasive transcranial Doppler ultrasound in intracranial angiomas

Neurology, 1986
Transcranial Doppler ultrasound is a noninvasive method to evaluate flow velocities in the basal cerebral arteries. It can provide hemodynamic data like velocity distributions, intracranial steal phenomena, and functional stenoses in angiomas as illustrated in four patients.
A, Schwartz, M, Hennerici
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Brain embolism monitoring with transcranial Doppler ultrasound

Current Treatment Options in Cardiovascular Medicine, 2003
Embolism is considered to be the main mechanism leading to brain infarction today; with the introduction of sophisticated neuroimaging tools, its impact is increasingly appreciated. Transcranial Doppler ultrasound allows noninvasive monitoring of in vivo embolism.
Viken L., Babikian, Christine A., Wijman
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[Transcranial Doppler ultrasound].

Canadian Association of Radiologists journal = Journal l'Association canadienne des radiologistes, 1992
Over the last decade, transcranial Doppler examination of the cerebral vessels has been made possible by the development of a high-intensity, low-frequency (2 MHz) pulse probe. The middle, the anterior and the posterior cerebral arteries, the cavernous portion of the carotid artery and the basilar artery can thus be easily studied transtemporally or ...
S, Fontaine, M, Lafortune, L H, Lebrun, P, Couillard   +3 more
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Transcranial Doppler Ultrasound

2017
The purpose of perioperative and critical care transcranial Doppler (TCD) ultrasonographic monitoring is to assess cerebral perfusion change. This is accomplished through noninvasive continuous measurement of blood flow-velocity within the largest intracranial blood vessels.
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