Key result
Dual macrophage and lymphocyte plaque infiltration links to ~51% higher IVUS echo heterogeneity.
Why the study?
The relationship between atherosclerotic plaque morphology defined by quantitative IVUS analysis and immunohistochemical findings was unclear.
Does quantitative analysis of intravascular ultrasound images correlate with immunohistochemical findings of inflammation in atherosclerotic plaques?
Population
25 patients with 25 coronary lesions undergoing ultrasound-guided directional coronary atherectomy
Comparison
Quantitative IVUS plaque analysis vs immunohistochemical infiltration groups (IML, IM, NI)
Design
Observational single-blind study
Authors
Loading...
IVUS morphology–inflammation links are hypothesis-generating in this small cohort; larger prospective studies needed before clinical relevance.
Observational (n=25)
Single-blind
No
Does quantitative analysis of intravascular ultrasound images correlate with immunohistochemical findings of inflammation in atherosclerotic plaques?
Absolute Event Rate: 22% vs 14.6%
p-value: p=0.002
Quantitative IVUS analysis, specifically the heterogeneity of plaque echo levels, correlates with histological evidence of immune inflammation in coronary plaques.
Okimoto et al. (2002) conducted an observational in Coronary artery disease (n=25). Macrophage and lymphocyte infiltration vs. Non-infiltrated lesions was evaluated on Heterogeneity of the distribution of plaque echo levels (HDPEL) before DCA (p=0.002). Atherosclerotic plaques infiltrated with both macrophages and lymphocytes showed significantly higher heterogeneity of plaque echo levels on intravascular ultrasound compared to non-infiltrated plaques (22.0 vs 14.6, p=0.002).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: