Carotid Ultrasound Boundary Study (CUBS): An Open Multicenter Analysis of Computerized Intima-Media Thickness...

Area of Science:

• Cardiovascular Imaging
• Medical Image Analysis
• Biomedical Engineering

Background:

• Common carotid intima-media thickness (CIMT) is a key biomarker for atherosclerosis.
• Accurate CIMT measurement is crucial for cardiovascular risk assessment.
• Existing computerized CIMT algorithms require comparative analysis against expert manual measurements.

Purpose of the Study:

• To compare the accuracy and clinical utility of five computerized CIMT algorithms against expert manual measurements.
• To assess the inter- and intra-observer variability of CIMT measurements.
• To evaluate the clinical impact of computerized CIMT measurements on cardiovascular event prediction.

Main Methods:

• A dataset of 1088 patients from two centers was analyzed.
• Five distinct computerized CIMT measurement algorithms were assessed.
• Expert analysts performed manual CIMT measurements for comparison.
• Statistical analyses included inter/intra-observer variability, correlation with clinical parameters, and survival analysis (generalized linear model, Kaplan-Meier).

Main Results:

• Computerized CIMT measurements demonstrated comparability with skilled manual segmentation.
• Statistical analyses showed no significant difference between automated and manual CIMT values.
• Both measurement types were suitable for clinical outcome investigation and cardiovascular event prediction.

Conclusions:

• Computerized CIMT quantification is a reliable alternative to manual analysis.
• Automated CIMT measurement tools can be interchangeably used with manual methods for clinical research.
• The study provides a publicly available dataset to advance CIMT research.