Related Experiment Video

Updated: Aug 17, 2026

Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice
06:39

Ultrasound Based Assessment of Coronary Artery Flow and Coronary Flow Reserve Using the Pressure Overload Model in Mice

Published on: April 13, 2015

Transthoracic Doppler echocardiography as a noninvasive tool to assess coronary artery stenoses--a comparison with

Markku Saraste1, Risto K Vesalainen, Antti Ylitalo

  • 1Department of Clinical Physiology, Turku University Hospital, Turku, Finland.

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|June 11, 2005
PubMed

Insights

Doppler transthoracic echocardiography accurately detects coronary artery stenoses. This noninvasive method shows promise for diagnosing significant blockages in coronary arteries.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Diagnostic Techniques

Background:

  • Coronary artery disease (CAD) is a leading cause of mortality worldwide.
  • Accurate and noninvasive diagnostic methods for CAD are crucial for timely intervention.
  • Current diagnostic approaches often involve invasive procedures with associated risks.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of Doppler transthoracic echocardiography (TTE) for detecting coronary artery stenoses.
  • To assess the sensitivity and specificity of TTE in identifying significant stenoses across the main coronary arteries.

Main Methods:

  • Prospective study involving 84 patients referred for quantitative coronary angiography.
  • Color Doppler identified turbulent flow indicating stenosis.
  • Pulsed wave Doppler measured local flow velocity.
  • Analysis of maximal-to-prestenotic blood flow velocity ratio and collateral flow patterns.

Main Results:

  • Overall sensitivity of 82% and specificity of 92% for detecting significant coronary artery stenoses (diameter reduction > 50%).
  • Specific performance varied by coronary artery: LAD (73% sensitivity, 92% specificity), RCA (63% sensitivity, 96% specificity), LCx (38% sensitivity, 99% specificity).
  • Abnormal velocity ratios (>2.0) and collateral flow patterns were key indicators.

Conclusions:

  • Doppler transthoracic echocardiography is a promising noninvasive technique for diagnosing significant coronary artery stenoses.
  • TTE offers a valuable tool for risk stratification and management of patients with suspected CAD.
  • Further research may refine TTE protocols for improved detection rates, particularly for the left circumflex artery.

More Related Videos

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation09:05

Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation

Published on: October 20, 2016

Dynamic Assessments of Coronary Flow Reserve after Myocardial Ischemia Reperfusion in Mice05:07

Dynamic Assessments of Coronary Flow Reserve after Myocardial Ischemia Reperfusion in Mice

Published on: August 25, 2023

Related Concept Videos

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...
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
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 I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
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...
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment: