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J Ultrasound Med ; 33(12): 2125-9, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25425368

RESUMO

OBJECTIVES: To explore the application of instantaneous wave intensity for early diagnosis of systemic lupus erythematosus (SLE)-induced atherosclerosis, we observed carotid elasticity by instantaneous wave intensity in premenopausal women with SLE. METHODS: The study included 3 groups (each group with 30 participants): SLE1 (course of disease <5 years), SLE2 (course of disease ≥5 years) and healthy control. Carotid parameters, including instantaneous acceleration wave intensity, instantaneous deceleration wave intensity, negative area, stiffness constant, wave intensity pulse wave velocity, stiffness constant pulse wave velocity, pressure strain elastic modulus, arterial compliance, augmentation index, and intima-media thickness, were measured. RESULTS: Compared with the control group, the instantaneous deceleration wave intensity, stiffness constant, pressure strain elastic modulus, wave intensity pulse wave velocity, and stiffness constant pulse wave velocity were significantly increased but the arterial compliance was significantly decreased in the SLE1 and SLE2 groups (all P ≤ .01). The instantaneous acceleration wave intensity, augmentation index, and negative area tended to increase in all 3 groups, but there were no statistical differences among the groups. The instantaneous deceleration wave intensity, stiffness constant, pressure strain elastic modulus, wave intensity pulse wave velocity, and stiffness constant pulse wave velocity were significantly higher in the SLE2 group than the SLE1 group, but the arterial compliance was significantly lower in the SLE2 group than the SLE1 group (all P ≤ .01). CONCLUSIONS: Instantaneous wave intensity can be used to evaluate carotid elasticity in the patients with SLE, which is important for early prevention and treatment of cardiovascular disease.


Assuntos
Artérias Carótidas/diagnóstico por imagem , Artérias Carótidas/fisiopatologia , Doenças das Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/fisiopatologia , Técnicas de Imagem por Elasticidade/métodos , Lúpus Eritematoso Sistêmico/diagnóstico por imagem , Lúpus Eritematoso Sistêmico/fisiopatologia , Adolescente , Adulto , Doenças das Artérias Carótidas/etiologia , Espessura Intima-Media Carotídea , Diagnóstico Precoce , Módulo de Elasticidade , Feminino , Humanos , Aumento da Imagem/métodos , Interpretação de Imagem Assistida por Computador/métodos , Lúpus Eritematoso Sistêmico/complicações , Masculino , Projetos Piloto , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Rigidez Vascular , Adulto Jovem
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