Incidental cardiac findings on thoracic imaging

Hong Kuan Kok1, Bryan Loo, William C Torreggiani

  • 1Department of Radiology, Adelaide and Meath Hospital incorporating the National Children's Hospital, Tallaght, Dublin, Ireland.

Insights

Nongated thoracic CT scans can reveal incidental cardiac findings, ranging from benign variants to clinically significant conditions. Radiologists must be familiar with these common findings and their implications in diagnosing cardiopulmonary disease.

Area of Science:

  • Radiology
  • Cardiology
  • Medical Imaging

Background:

  • Nongated thoracic computed tomography (CT) is frequently used for cardiopulmonary disease assessment.
  • Incidental cardiac findings are common on these studies.
  • Familiarity with cardiac anatomy and pathology on CT is crucial for radiologists.

Purpose of the Study:

  • To review common incidental cardiac findings on nongated thoracic CT.
  • To discuss the clinical relevance of these incidental findings.
  • To highlight the importance of recognizing cardiac structures during thoracic CT interpretation.

Main Methods:

  • Review of nongated thoracic CT studies.
  • Identification and categorization of incidental cardiac findings.
  • Correlation with clinical significance and patient outcomes.

Main Results:

  • Common incidental findings include variations in pericardium, cardiac chambers, valves, and great vessels.
  • Some findings represent benign variants, while others indicate significant pathology.
  • Increasing use of cardiac devices (stents, pacemakers, prosthetic valves) necessitates radiologist awareness.

Conclusions:

  • Nongated thoracic CT provides excellent visualization of cardiac structures.
  • Radiologists can identify a spectrum of incidental cardiac findings with clinical importance.
  • Awareness of these findings aids in comprehensive patient evaluation and management.

Related Concept Videos

Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging 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...
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 I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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...