Reliability of 3D Ultrasound for Measuring Carotid Plaque Volume
Author Information
Author(s): Ludwig Malte, Zielinski Tomasz, Schremmer Dieter, Stumpe Klaus O
Hypothesis
The study aims to investigate the reliability of a central reading procedure for measuring carotid plaque volume using 3D ultrasound.
Conclusion
The study found that standardized central 3D ultrasound reading protocols can achieve highly reliable measurements of carotid plaque volume in multicenter trials.
Supporting Evidence
- Intra-reader variability was small with ICCs of 0.985, 0.967, and 0.969 for three readers.
- Inter-reader variability was also small with an ICC of 0.964.
- Larger plaques showed lower variability in measurements compared to smaller plaques.
Takeaway
This study shows that using special 3D ultrasound techniques can help doctors measure the size of plaque in arteries very accurately, which is important for treating heart disease.
Methodology
The study used two data sets of 3D ultrasound images to assess intra- and inter-reader variability using intraclass correlation coefficients.
Potential Biases
Minor subjective differences in readings may occur due to reader variability.
Limitations
Variability in measurements increased with smaller plaque volumes, and some plaques may not have well-defined boundaries due to imaging limitations.
Participant Demographics
The study included 105 patients (82 men) with a mean age of approximately 62 years.
Digital Object Identifier (DOI)
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