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Related Concept Videos

The Arch of Aorta01:10

The Arch of Aorta

The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Arteries of the Head and Neck01:26

Arteries of the Head and Neck

The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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...
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)...
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
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Related Experiment Video

Updated: Jun 4, 2026

Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability
09:11

Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability

Published on: February 23, 2016

Expressive aphasia and carotid dissection.

Joshua R Simmons1, Brooks T Laselle, David A Della-Giustina

  • 1Madigan Army Medical Center, Tacoma, WA.

The Western Journal of Emergency Medicine
|February 5, 2011
PubMed
Summary

Emergency ultrasound identified carotid dissection, a serious condition causing aphasia. This case highlights ultrasound

Area of Science:

  • Neurology
  • Vascular Imaging
  • Emergency Medicine

Background:

  • Carotid dissection is a critical condition often presenting with neurological deficits.
  • Prompt diagnosis is essential for effective management and improved patient outcomes.
  • Traditional diagnostic methods may be time-consuming or invasive.

Purpose of the Study:

  • To present a case of internal carotid artery dissection diagnosed using ultrasound.
  • To illustrate the utility of ultrasound in identifying intraluminal flap and altered flow patterns.
  • To discuss the clinical implications and diagnostic value of point-of-care ultrasound in suspected carotid dissection.

Main Methods:

  • A patient presenting with expressive aphasia underwent bedside ultrasound examination.

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Related Experiment Videos

Last Updated: Jun 4, 2026

Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability
09:11

Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability

Published on: February 23, 2016

A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application
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A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application

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  • Two-dimensional ultrasound visualized the internal carotid artery and detected an intraluminal flap.
  • Color Doppler ultrasound assessed blood flow dynamics, revealing turbulent flow and a false lumen.

    • Main Results:

    • Ultrasound successfully identified features consistent with carotid dissection, including a flap and abnormal flow.
    • The patient's condition was diagnosed promptly, allowing for timely intervention.
    • The case demonstrates the feasibility and effectiveness of ultrasound in this emergent setting.

    Conclusions:

    • Point-of-care ultrasound is a valuable tool for the rapid diagnosis of carotid dissection in the emergency department.
    • Ultrasound findings, such as intraluminal flaps and altered flow, can indicate dissection.
    • Early ultrasound diagnosis can facilitate prompt treatment and positively impact patient outcomes.