Related Experiment Video
Updated: May 10, 2026
04:40
Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Recurrent spontaneous coronary artery dissection observed with multiple imaging modalities.
Hiroyuki Jinnouchi1, Kenichi Sakakura, Jun Matsuda
1Department of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Japan.
International Heart Journal
|June 19, 2013
Summary
Recurrent spontaneous coronary artery dissection (SCAD) can affect multiple coronary arteries. Intracoronary ultrasound (IVUS) and multidetector computed tomography (MDCT) are more sensitive than coronary angiography (CAG) for SCAD diagnosis.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Spontaneous coronary artery dissection (SCAD) is a rare cause of acute coronary syndrome (ACS).
- Recurrent and multivessel SCAD are particularly uncommon presentations.
Observation:
- A 51-year-old man experienced two distinct SCAD events.
- The first event involved dissection of the right coronary artery, confirmed by CAG, IVUS, and MDCT.
- The second event involved dissection of the left coronary artery, confirmed by IVUS and MDCT, but not by CAG.
Findings:
- Coronary angiography (CAG) may underestimate or miss SCAD diagnoses.
- Intracoronary ultrasound (IVUS) and multidetector computed tomography (MDCT) demonstrate higher sensitivity for detecting SCAD.
- These imaging modalities are crucial for accurate SCAD diagnosis, especially in recurrent or multivessel cases.
Implications:
- The findings highlight the limitations of CAG in diagnosing SCAD.
- IVUS and MDCT are valuable tools for improving SCAD detection rates.
- Enhanced diagnostic accuracy for SCAD can lead to better patient management and outcomes.
Related Concept Videos
01:25Imaging 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...
01:30Acute 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...
01:28Imaging 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...
01:20Imaging Studies for Cardiovascular System III: X-Ray
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
01:21Aneurysm 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...