Related Experiment Video
Updated: Jan 14, 2026
09:33
A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
Published on: February 7, 2015
16.7K
Practical Approach to Performing the Comprehensive Carotid Duplex Examination.
Carol Mitchell1, Stavros Agorastos2, Clark Garcia3
1University of Wisconsin-Madison, School of Medicine and Public Health, Department of Medicine, Madison, Wisconsin.
Summary
This guide details a comprehensive duplex ultrasound protocol for carotid and vertebral arteries. It covers imaging techniques, Doppler analysis, and plaque assessment for accurate diagnosis.
Area of Science:
- Vascular Ultrasound
- Medical Imaging Technology
- Cerebrovascular Diagnostics
Background:
- Carotid and vertebral arteries are crucial for brain blood supply.
- Duplex ultrasound is a primary non-invasive tool for evaluating these vessels.
- Standardized protocols ensure comprehensive and reproducible assessments.
Purpose of the Study:
- To outline a detailed duplex ultrasound imaging protocol for carotid and vertebral arteries.
- To present essential two-dimensional imaging, Doppler, and measurement techniques.
- To review plaque grading and classification within the context of carotid duplex examination.
Main Methods:
- Utilizing two-dimensional B-mode imaging for anatomical visualization.
- Employing Doppler ultrasound (color, spectral) to assess blood flow velocity and direction.
- Implementing standardized measurement techniques for vessel diameter and stenosis.
- Applying established criteria for grading and classifying atherosclerotic plaque.
Main Results:
- The protocol provides a systematic approach to carotid and vertebral artery ultrasound.
- Specific techniques for optimal image acquisition and data analysis are detailed.
- Plaque characteristics (echogenicity, surface regularity) are linked to stenosis severity.
Conclusions:
- A comprehensive duplex ultrasound protocol is essential for accurate cerebrovascular evaluation.
- Standardized imaging and analysis improve diagnostic confidence and patient management.
- Understanding plaque morphology aids in risk stratification for stroke.
Related Concept Videos
01:19Assessing Blood pressure using a doppler ultrasound
2.3K
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:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
2.3K
01:28Imaging Studies for Cardiovascular System V: CT
279
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...
279
01:29Assessment of the Cardiovascular System II: Inspection
788
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
Head and Neck
788
01:25Assessment of apical radial pulse
1.2K
Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
1.2K
01:27Assessment of the Cardiovascular System III: Palpation
1.0K
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
1.0K
01:15Assessment of blood pressure in brachial artery(one-step method)
1.1K
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
1.1K