Screening test for carotid disease

Edward I Bluth1

  • 1Department of Radiology, Ochsner Clinic Foundation, New Orleans, LA 70124, USA. ebluth@ochsner.org

Insights

Screening for carotid artery stenosis using ultrasound (US) may reduce stroke risk. This review examines US screening methods, their accuracy, and cost-effectiveness for stroke prevention.

Area of Science:

  • Vascular Surgery
  • Neurology
  • Public Health

Background:

  • Cardiovascular disease is a leading cause of death in the US.
  • Carotid endarterectomy trials show reduced stroke risk for symptomatic and asymptomatic patients with carotid artery stenosis.
  • Detecting occult carotid stenosis is a proposed stroke-reducing strategy.

Purpose of the Study:

  • To review ultrasound (US) methods for carotid artery screening.
  • To assess the accuracy of proposed US screening methods.
  • To evaluate the cost- and clinical effectiveness of US carotid artery screening.

Main Methods:

  • Review of proposed ultrasound (US) screening methods for carotid artery stenosis.
  • Analysis of reported accuracy data for US screening techniques.
  • Examination of cost-effectiveness and clinical utility studies.

Main Results:

  • Ultrasound (US) has been investigated as a screening tool for carotid artery stenosis, both alone and with other screenings.
  • Accuracy of various US methods for detecting carotid stenosis is reported.
  • Data on cost- and clinical effectiveness are considered.

Conclusions:

  • Ultrasound (US) screening for carotid artery stenosis is a potential method for stroke risk reduction.
  • Further evaluation of accuracy and cost-effectiveness is crucial for widespread implementation.
  • Screening may be beneficial for both symptomatic and asymptomatic individuals.

Related Concept Videos

Assessment of the Cardiovascular System II: Inspection01:29

Assessment of the Cardiovascular System II: Inspection

Inspection is the initial step in assessing the cardiovascular system. It involves a detailed visual examination that provides crucial information about a patient's circulatory and cardiac health. This systematic process, conducted from head to toe, helps identify signs of cardiovascular conditions by observing physical appearance, skin and mucous membranes, jugular and carotid pulsations, chest symmetry, and the condition of the extremities.
Head and Neck
Exercise Stress Test01:26

Exercise Stress Test

Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
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...