Imaging of the endothelial dysfunction in coronary atherosclerosis

J T Kuikka1, O T Raitakari, K L Gould

  • 1Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and Niuvanniemi Hospital, Finland. jkuikka@uku.fi

Insights

Coronary endothelial dysfunction, an early sign of atherosclerosis, can be detected non-invasively. Early detection enables interventions to prevent cardiovascular events and procedures like revascularisation.

Area of Science:

  • Cardiovascular Medicine
  • Medical Imaging
  • Vascular Biology

Background:

  • Coronary endothelial dysfunction involves vasoconstriction to vasodilators, indicating early coronary atherosclerosis.
  • It is linked to coronary artery disease (CAD), benefiting from risk factor management over revascularisation.
  • Early detection of vascular changes is crucial for preventing cardiovascular events.

Purpose of the Study:

  • To review non-invasive methods for detecting coronary endothelial dysfunction and early atherosclerosis.
  • To assess the utility of current technologies in identifying functional and anatomical vascular changes.

Main Methods:

  • Review of non-invasive imaging techniques for assessing coronary vasculature.
  • Evaluation of positron emission tomography (PET) and magnetic resonance imaging (MRI).
  • Comparison with intracoronary ultrasonography as a benchmark.

Main Results:

  • Non-invasive methods are increasingly important for identifying endothelial dysfunction.
  • PET and MRI show growing significance in detecting early coronary atherosclerosis.
  • Intracoronary ultrasonography remains the most accurate diagnostic method.

Conclusions:

  • Early detection of coronary endothelial dysfunction is key for preventative strategies.
  • Non-invasive imaging like PET and MRI are vital for identifying early atherosclerosis.
  • Integrated management of risk factors is superior to revascularisation for patient outcomes.

Related Concept Videos

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...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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...
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)...