Related Experiment Video

Updated: Oct 4, 2026

Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
04:01

Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery

Published on: August 9, 2024

An analysis on the diagnostic values of transcranial Doppler and angiography in transient ischemic attack

Y Jiang1, J Hu, Q Gao

  • 1Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030.

Journal of Tongji Medical University = Tong Ji Yi Ke Da Xue Xue Bao
|August 29, 2001
PubMed

Insights

Transcranial Doppler (TCD) accurately diagnoses blood vessel stenosis or occlusion in transient ischemic attack (TIA) patients. This non-invasive technique aids in identifying hemodynamic changes, crucial for TIA risk assessment and diagnosis.

Area of Science:

  • Neurology
  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Transient ischemic attack (TIA) is often caused by intracranial or extracranial blood vessel stenosis or occlusion.
  • Accurate diagnosis of these vascular abnormalities is critical for TIA management and stroke prevention.

Purpose of the Study:

  • To investigate the accuracy and diagnostic value of transcranial Doppler (TCD) in TIA patients.
  • To compare TCD findings with digital subtraction angiography (DSA) or magnetic resonance angiography (MRA).

Main Methods:

  • Retrospective analysis of 50 TIA patients undergoing routine TCD examinations.
  • Comparison of TCD results with DSA or MRA for stenosis and occlusion detection.
  • Analysis of hemodynamic changes and flow patterns in affected blood vessels.

Main Results:

  • TCD correctly identified stenosis or occlusion in 77% of TIA patients, confirmed by DSA/MRA.
  • TCD showed a 78.7% accordance rate with angiography in detecting unilateral stenosis, bilateral stenosis, and siphon segment occlusion.
  • Hemodynamic changes in basilar arteries, particularly moderate to severe stenosis or occlusion, were identified as significant TIA risk factors.

Conclusions:

  • Transcranial Doppler (TCD) demonstrates significant clinical value in diagnosing TIA.
  • TCD is an effective tool for assessing stenosis and occlusion in cerebral arteries, aiding in TIA risk stratification.

More Related Videos

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia06:01

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia

Published on: August 18, 2015

Related Concept Videos

Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...