Related Experiment Video

Updated: May 2, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

2.6K

Coronary artery assessment on electrocardiogram-gated thoracoabdominal multidetector computed tomographic angiography

Martin J Willemink1, Matthijs F L Meijs, Maarten J Cramer

  • 1From the Departments of *Radiology, †Cardiology, and ‡Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.

Journal of Computer Assisted Tomography
|March 15, 2014
PubMed

Insights

Electrocardiogram-gated thoracoabdominal computed tomographic angiography (CTA) provides acceptable image quality for evaluating coronary arteries during aortic scans. This method identified significant coronary artery stenosis in 57% of patients, aiding in combined aortic and coronary disease assessment.

Area of Science:

  • Cardiovascular imaging
  • Radiology
  • Diagnostic angiography

Background:

  • Multidetector computed tomographic angiography (CTA) is crucial for aortic evaluation.
  • Assessing coronary arteries concurrently during thoracoabdominal CTA can improve diagnostic efficiency.
  • Electrocardiogram (ECG) gating is vital for optimizing cardiac imaging quality.

Purpose of the Study:

  • To evaluate coronary image quality, stenosis grade, and diagnostic confidence using ECG-gated thoracoabdominal CTA.
  • To determine the utility of aortic CTA for concomitant coronary artery assessment.
  • To assess the prevalence of significant coronary artery stenosis in patients undergoing CTA for aortic pathology.

Main Methods:

  • Retrospective ECG-gated thoracoabdominal CTA was performed on 75 patients.
  • Image data were reconstructed at 12.5% intervals of the R-R wave.
  • Two consensus observers scored coronary artery segments (AHA 15-segment model) for image quality, stenosis, and confidence.

Main Results:

  • Coronary evaluation was not possible in 14 patients due to nondiagnostic image quality.
  • In assessable segments, 61% had acceptable or better image quality.
  • Acceptable image quality was achieved in 82% of proximal and middle coronary segments.
  • Significant stenosis (>50%) was detected in 57% of patients.
  • Moderate to high confidence in stenosis scoring was reported for 79% of assessable segments.

Conclusions:

  • ECG-gated thoracoabdominal CTA enables simultaneous assessment of proximal and middle coronary arteries.
  • This technique can serve as a combined diagnostic tool for aortic disease and coronary artery evaluation.
  • Aortic CTA revealed significant coronary artery stenosis in 57% of the evaluated patient cohort.
Abstract

More Related Videos

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

14.9K
Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection06:57

Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection

Published on: September 22, 2023

1.6K

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...
671
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...
589
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...
495
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic 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...
1.2K
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...
973
Angina III: Clinical Manifestations and Assessment01:29

Angina III: Clinical Manifestations and Assessment

Angina manifests as chest pain, tightness, or squeezing discomfort typically located behind the breastbone. It can radiate to the neck, jaw, shoulders, and inner aspects of the upper arms, most commonly the left arm. Patients may experience shortness of breath, fatigue, profuse sweating, dizziness, indigestion, heartburn, palpitations, anxiety, and vomiting as accompanying symptoms. This pain often lasts a few minutes and is triggered by physical exertion, emotional stress, heavy meals, or cold...
481