New quantification methods for carotid intra-plaque neovascularization using contrast-enhanced ultrasound.
Ultrasound Med Biol
; 40(1): 25-36, 2014 Jan.
Article
em En
| MEDLINE
| ID: mdl-24161799
ABSTRACT
As carotid intra-plaque neovascularization (IPN) is linked to progressive atherosclerotic disease and plaque vulnerability, its accurate quantification might allow early detection of plaque vulnerability. We therefore developed several new quantitative methods for analyzing IPN perfusion and structure. From our analyses, we derived six quantitative parameters-IPN surface area (IPNSA), IPN surface ratio (IPNSR), plaque mean intensity, plaque-to-lumen enhancement ratio, mean plaque contrast percentage and number of micro-vessels (MVN)-and compared these with visual grading of IPN by two independent physicians. A total of 45 carotid arteries with symptomatic stenosis in 23 patients were analyzed. IPNSA (correlation r = 0.719), IPNSR (r = 0.538) and MVN (r = 0.484) were found to be significantly correlated with visual scoring (p < 0.01). IPNSA was the best match to visual scoring. These results indicate that IPNSA, IPNSR and MVN may have the potential to replace qualitative visual scoring and to measure the degree of carotid IPN.
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MEDLINE
Assunto principal:
Fosfolipídeos
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Hexafluoreto de Enxofre
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Interpretação de Imagem Assistida por Computador
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Aumento da Imagem
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Estenose das Carótidas
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Neovascularização Patológica
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article