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Evaluation of Variable Thin-Cap Fibroatheroma Definitions and Association of Virtual Histology-Intravascular Ultrasound Findings With Cavity Rupture Size
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Evaluation of Variable Thin-Cap Fibroatheroma Definitions and Association of Virtual Histology-Intravascular Ultrasound Findings With Cavity Rupture Size
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Journal Article
Evaluation of Variable Thin-Cap Fibroatheroma Definitions and Association of Virtual Histology-Intravascular Ultrasound Findings With Cavity Rupture Size
2016
Overview
The accepted definition of virtual histology intravascular ultrasound (IVUS-VH) thin-cap fibroatheroma (TCFA) is only a modest predictor of plaque rupture (PR). We sought to determine the relation between IVUS-VH findings and culprit lesions with PR using computational analysis. A total of 80 culprit lesions from 80 patients with stable angina (n = 37), unstable angina (n = 20), and myocardial infarction (n = 23) were divided into those with (n = 15) and without PR (n = 65). By use of automated computational analysis, the standard IVUS-VH TCFA criterion and 124 additional criteria were compared. The standard TCFA definition demonstrated modest ability to discriminate lesions with and without PR (sensitivity 87%, specificity 37%, PPV 0.24, and NPV 0.92). Of 124 additional IVUS-VH TCFA definitions, only 2 improved the discriminative ability even modestly. However, a positive correlation was demonstrated between cavity size and necrotic core percentage (r = 0.78, p <0.01) and a negative correlation with percentage of fibrous tissue (r = −0.81, p <0.01). In conclusion, IVUS-VH criteria were only modestly associated with PR, without significant improvement by varying IVUS-VH TCFA features, but IVUS-VH features of ruptured plaques were strongly correlated with cavity size.
Publisher
Elsevier Inc,Elsevier Limited
Subject
/ Angina, Stable - diagnostic imaging
/ Angina, Unstable - diagnostic imaging
/ Calcinosis - diagnostic imaging
/ Coronary Artery Disease - diagnostic imaging
/ Coronary Artery Disease - surgery
/ Diabetes
/ Female
/ Fibrosis
/ Humans
/ Male
/ Myocardial Infarction - diagnostic imaging
/ Myocardial Infarction - surgery
/ Necrosis
/ Patients
/ Plaque, Atherosclerotic - diagnostic imaging
/ Plaque, Atherosclerotic - pathology
/ Rupture, Spontaneous - diagnostic imaging
/ Software
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