Related Experiment Video

Updated: May 21, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

Analyzing coronary artery disease in patients with low CAC scores by 64-slice MDCT

Nan-Han Lu1, Lee-Ren Yeh, Tai-Been Chen

  • 1Department of Information Engineering, I-Shou University, Kaohsiung City 84001, Taiwan.

Thescientificworldjournal
|June 16, 2012
PubMed

Insights

A new model combining patient data with Coronary Artery Disease (CAD) risk factors significantly improves prediction accuracy for CAD, especially in individuals with low Coronary Artery Calcification (CAC) scores.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Predictive Analytics

Background:

  • Coronary Artery Calcification (CAC) scoring is a common method for assessing Coronary Artery Disease (CAD) risk.
  • Current CAC scoring lacks sufficient diagnostic accuracy for definitive CAD diagnosis.
  • There is a need for improved methods to predict CAD, particularly in patients with low CAC scores.

Purpose of the Study:

  • To develop and validate a novel, efficient approach for predicting CAD in patients with low CAC scores.
  • To enhance the diagnostic accuracy beyond traditional CAC scoring.

Main Methods:

  • The study included 86 subjects undergoing health examinations, CAC scanning, and cardiac CT angiography.
  • Investigated eleven physiological variables and three personal parameters.
  • Employed logistic regression and meta-analysis to combine parameters and assess model performance.

Main Results:

  • CAC score alone showed low diagnostic sensitivity (14.3%) for CAD when the score was ≤30.
  • The proposed model significantly increased sensitivity to 57.13%.
  • Key predictors identified included family history, LDL-c, blood pressure, HDL-c, age, triglyceride, and cholesterol.

Conclusions:

  • CAC scores have a low negative predictive value for CAD.
  • A novel prediction method integrating physiological and personal parameters substantially improves CAD prediction accuracy.
  • This approach offers a more reliable tool for identifying CAD risk in specific patient groups.
Abstract

More Related Videos

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images06:57

Semi-Automatic Graphical Tool for Measuring Coronary Artery Spatially Weighted Calcium Score from Gated Cardiac Computed Tomography Images

Published on: September 22, 2023

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease06:16

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease

Published on: August 9, 2024

Related Concept Videos

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...
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...
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...
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
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)...