Related Experiment Video
Updated: May 9, 2026

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
Published on: February 7, 2015
Impact of multiple cardiovascular risk factors on carotid intima-media thickness and elasticity
Lili Niu1, Yanling Zhang, Ming Qian
1Paul C Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
Insights
Clustering multiple cardiovascular risk factors (CVRFs) significantly impacts carotid intima-media thickness (IMT) and elasticity more than individual factors. This synergistic effect highlights the importance of managing combined CVRFs for vascular health.
Area of Science:
- Vascular Biology
- Cardiovascular Disease Research
- Medical Imaging
Background:
- Carotid intima-media thickness (IMT) and elasticity are established independent predictors of cardiovascular disease (CVD).
- Cardiovascular risk factors (CVRFs) include hypertension, dyslipidemia, diabetes, overweight, and smoking.
- The impact of clustered CVRFs on vascular parameters requires further investigation.
Purpose of the Study:
- To determine if the clustering of three or more CVRFs has a greater impact on carotid IMT and elasticity compared to individual CVRFs.
- To assess the independent contribution of multiple CVRFs to carotid IMT and elasticity.
Main Methods:
- 173 participants without clinical CVD were categorized into a multiple CVRFs group (≥3 CVRFs) and a control group (≤2 CVRFs).
- Carotid IMT was measured using B-mode ultrasound.
- Vessel elasticity was assessed using the vessel texture matching method (VTMM).
Main Results:
- Multiple CVRFs led to a disproportionate increase in carotid IMT (43%) and elastic modulus (60%) compared to controls.
- Multiple regression analysis confirmed multiple CVRFs as an independent determinant of both IMT and elasticity.
- Adjusted analysis showed significant incremental increases in IMT and elastic modulus with increasing numbers of CVRFs.
Conclusions:
- The clustering of multiple CVRFs exerts a significantly greater impact on carotid IMT and elasticity than individual risk factors.
- These findings suggest a synergistic interaction among CVRFs that adversely affects vascular structure and function.
- Comprehensive management of combined CVRFs is crucial for mitigating cardiovascular risk.
Background:
Carotid intima-media thickness (IMT) and elasticity have been shown to be independent predictors of cardiovascular disease (CVD). Cardiovascular risk factors (CVRFs) includes hypertension, dyslipidemia, diabetes, overweight and smoking. The objective was to investigate whether the clustering of three or more components of CVRFs has a greater impact on carotid IMT and elasticity than individual components of CVRFs.
Methods:
One hundred and seventy-three participants without clinical CVD were classified as the multiple CVRFs patients with three or more CVRFs (n = 55) and control group with two or less CVRFs (n = 118). Carotid IMT and elastic modulus were measured by B-mode ultrasound and vessel texture matching method (VTMM), respectively.
Results:
The multiple CVRFs conferred a disproportionate increase in carotid IMT (43%, p<0.0001) and elastic modulus (60%, p<0.0001), compared with control group. Multiple regression models, which included age, gender, as well as each individual component of CVRFs as continuous variables, showed that multiple CVRFs was an independent determinant of both IMT (p = 0.042) and elasticity (p = 0.008). In the analysis of variance adjusted with age, subjects with single, double, and multiple CVRFs, increased by 8.1%, 42.2%, and 66% for IMT, 54.6%, 94.3%, and 125.2% for elastic modulus, respectively, compared to subjects without CVRFs.
Conclusions:
The clustering of multiple CVRFs has a greater impact on carotid IMT and elasticity than individual components of CVRFs. This suggests that the components of CVRFs interact to synergistically impact carotid IMT and elasticity.
Related Concept Videos
Coronary Artery Disease I: Introduction
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Atherosclerosis I: Introduction
Atherosclerosis III: Management
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease IV: Preventive Measures
