Related Experiment Video
Updated: Nov 27, 2025

Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
Coronary plaque burden, plaque characterization and their prognostic implications in familial hypercholesterolemia: A
Leopoldo Pérez de Isla1, Rodrigo Alonso2, José Juan Gómez de Diego3
1Cardiology Department, Hospital Clínico San Carlos, IDISSC, Facultad de Medicina Universidad Complutense, Madrid, Spain; Fundación Hipercolesterolemia Familiar, Madrid, Spain.
Insights
Semi-automated plaque characterization (SAPC) in familial hypercholesterolemia (FH) patients quantifies coronary plaque burden. Higher plaque burden predicts increased cardiovascular risk and impacts event-free survival, aiding prognosis.
Area of Science:
- Cardiology
- Medical Imaging
- Genetics
Background:
- Familial hypercholesterolemia (FH) significantly increases the risk of premature atherosclerotic cardiovascular disease.
- Coronary computed tomographic angiography (CTA) with semi-automated plaque characterization (SAPC) offers detailed insights into coronary plaque.
- Understanding plaque burden and characteristics is crucial for managing FH patients.
Purpose of the Study:
- To quantify and characterize coronary plaque burden in FH patients using SAPC.
- To identify factors associated with plaque burden and characteristics.
- To analyze the prognostic implications of SAPC-derived parameters in FH.
Main Methods:
- A cohort of 259 asymptomatic individuals with molecularly confirmed FH underwent coronary CTA.
- Semi-automated plaque characterization (SAPC) was employed to analyze coronary plaque burden and composition.
- Follow-up data was collected to assess cardiovascular events and survival.
Main Results:
- Median plaque burden was 25.0%, with non-calcified plaque at 22.83% and calcified plaque at 1.12%.
- Plaque burden, non-calcified plaque burden, calcified plaque burden, and coronary calcium score were independently associated with 5-year cardiovascular risk.
- Increased plaque burden was significantly related to reduced event-free survival (HR: 1.11).
Conclusions:
- SAPC effectively quantifies coronary atherosclerosis and its components in FH patients.
- Plaque burden metrics derived from SAPC are independent predictors of cardiovascular risk.
- Coronary plaque burden is a significant prognostic indicator in individuals with FH.
Background And Aims:
Heterozygous familial hypercholesterolemia (FH) is associated with premature atherosclerotic cardiovascular disease. Semi-automated plaque characterization (SAPC) by coronary computed tomographic angiography (CTA) provides information regarding coronary plaque burden and plaque characterization. Our aim was to quantify and characterize the coronary plaque burden of patients with FH using SAPC analysis and to identify which factors are related to plaque burden and plaque characteristics. A second aim was to analyse the prognostic implications of these parameters.
Methods:
Two hundred and fifty-nine asymptomatic individuals with molecularly determined FH were enrolled in this follow-up cohort study and underwent a coronary CTA analysed with SAPC.
Results:
Mean follow-up time after coronary CTA was 3.9 ± 2 years. Mean age was 46.9 (10.7) years (130 women, 50.2%). Median plaque burden was 25.0% (19.0-29.0), non-calcified plaque burden 22.83% (17.94-26.88), calcified plaque-burden 1.12% (0.31-2.86) and CCS 8.9 (0-93). Five-year risk was independently related to plaque burden, non-calcified plaque burden, calcified plaque burden and coronary calcium score (B:3.75, 95%CI:2.92-4.58; p < 0.001, B:2.9, 95%CI:2.15-3.66; p < 0.001, B:0.75, 95%CI 0.4-1.1; p < 0.001 and B:82.2, 95%CI:49.28-115.16; p < 0.001 respectively). During follow-up, there were 15 (5.81%) nonfatal events and 1 (0.4%) fatal event. Plaque burden was significantly related to event-free survival during follow-up (HR:1.11; 95%CI:1.05-1.18; p < 0.001).
Conclusions:
Coronary atherosclerosis and its qualitative components may be quantified by means of SAPC in patients with FH. Plaque burden, calcified plaque burden and non-calcified plaque burden were independently related to the estimated cardiovascular risk. Plaque burden was also related to prognosis.
More Related Videos
04:40Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
10:02Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT
Published on: May 2, 2012
Related Concept Videos
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Coronary Artery Disease I: Introduction
Coronary Artery Disease II: Pathophysiology
Imaging Studies for Cardiovascular System V: CT
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Coronary Artery Disease IV: Preventive Measures