Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

An Overview of Transcranial Color Flow Imaging

An Overview of Transcranial Color Flow Imaging Transcranial Doppler (TCD) examinations are performed with non-imaging transducers, or with transcranial color flow imaging (TCI) in order to obtain hemodynamic information about the cerebral circulation during various pathological states. Interpretation of the findings are made by analysis of Doppler spectral waveforms, velocity criteria, side-to-side comparisons, pulsatility indices, and hemispheric ratios. A comparison of both TCD non-imaging or blinded technique allows the technologist or physician insight into the advantages and disadvantages of each diagnostic method. The blinded technique requires meticulous skill and ability to maintain the mental image of the circle of Willis while performing the examination. Its greatest advantages are the small size of the units, lower purchase price. Doppler sensitivity, and window maneuverability. It is well suited for intraoperative Doppler monitoring studies, emboli detection and CO2reactivity testing. In contrast, TCI technique is based on an astute user knowledge of intracranial landmarks and known vessel depths and paths. The basal cerebral vessels are visualized by the color-coded Doppler information. Therefore, positive vessel identification is possible, and more reliable, reproducible information is available. It is a technique which is extremely helpful in complex intracranial flow patterns. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ultrasound quarterly Wolters Kluwer Health

An Overview of Transcranial Color Flow Imaging

Byrd, Sheila M.
Ultrasound quarterly , Volume 13 (4) – Jan 1, 1995
Download PDF
14 pages

Loading next page...
 
/lp/wolters-kluwer-health/an-overview-of-transcranial-color-flow-imaging-gc83kGPwiR

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

ISSN
0894-8771
eISSN
1536-0253

Abstract

Transcranial Doppler (TCD) examinations are performed with non-imaging transducers, or with transcranial color flow imaging (TCI) in order to obtain hemodynamic information about the cerebral circulation during various pathological states. Interpretation of the findings are made by analysis of Doppler spectral waveforms, velocity criteria, side-to-side comparisons, pulsatility indices, and hemispheric ratios. A comparison of both TCD non-imaging or blinded technique allows the technologist or physician insight into the advantages and disadvantages of each diagnostic method. The blinded technique requires meticulous skill and ability to maintain the mental image of the circle of Willis while performing the examination. Its greatest advantages are the small size of the units, lower purchase price. Doppler sensitivity, and window maneuverability. It is well suited for intraoperative Doppler monitoring studies, emboli detection and CO2reactivity testing. In contrast, TCI technique is based on an astute user knowledge of intracranial landmarks and known vessel depths and paths. The basal cerebral vessels are visualized by the color-coded Doppler information. Therefore, positive vessel identification is possible, and more reliable, reproducible information is available. It is a technique which is extremely helpful in complex intracranial flow patterns.

Journal

Ultrasound quarterly – Wolters Kluwer Health

Published: Jan 1, 1995

There are no references for this article.