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Functional Transcranial Doppler Ultrasound for Monitoring Cerebral Blood Flow
Published on: March 15, 2021
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Transcranial Doppler.
Frontiers of Neurology and Neuroscience
|December 14, 2016
Summary
Transcranial Doppler ultrasonography (TCD) offers real-time intracranial blood flow assessment, complementing other neuroimaging. This cost-effective, bedside tool aids in diagnosing and monitoring intracranial stenosis and cerebrovascular conditions.
Area of Science:
- Neurology
- Medical Imaging
- Vascular Ultrasound
Background:
- Transcranial Doppler ultrasonography (TCD) is a unique, real-time diagnostic tool for evaluating intracranial blood flow.
- Its physiological data complements anatomical information from other neuroimaging modalities.
- TCD is accessible, cost-effective, and suitable for bedside and emergency use.
Purpose of the Study:
- To present the fundamental principles, performance techniques, and diagnostic methods of TCD.
- To explore advanced TCD applications in patients with intracranial stenosis.
- To highlight TCD's role in understanding cerebrovascular disease.
Main Methods:
- Review of TCD principles and performance techniques.
- Validation of TCD criteria for intracranial stenosis against angiographic studies.
- Discussion of TCD applications including emboli monitoring and vasomotor reactivity assessment.
Main Results:
- TCD provides reliable real-time intracranial blood flow evaluation.
- Validated TCD criteria demonstrate acceptable accuracy for diagnosing anterior and posterior circulation stenosis.
- Advanced TCD applications offer insights into ischemia pathophysiology and risk stratification.
Conclusions:
- TCD is an essential tool for stroke neurologists in diagnosing, monitoring, and managing intracranial stenosis.
- It aids in understanding stroke pathogenesis and determining patient prognosis.
- TCD findings are crucial for treatment planning and follow-up in cerebrovascular disease.
