Follow-up CT Evaluation of the Mural Changes in Active Takayasu Arteritis
Korean Journal of Radiology
;
: 286-294, 2007.
Artigo
em Inglês
| WPRIM
| ID: wpr-211225
ABSTRACT
OBJECTIVE:
We wanted to evaluate the mural changes by CT on the follow-up examination of patients with active Takayasu arteritis. MATERIALS ANDMETHODS:
The study included 18 patients, (4 males and 14 females), with active Takayasu arteritis. A total of 44 CT examinations were done during the follow-up period (mean 55.6 months). At the time of the last follow-up CT, the disease, on the basis of the erythrocyte sedimentation rate (ESR), was found to be inactive in five patients and the disease was active and persistent in 13 patients. The thickness and CT attenuation of the aortic wall on the precontrast, arterial and venous phases were measured on the initial and the follow-up CT examinations. The ratio of the mural attenuation over that of the back muscle on the initial CT was compared with the ratio found on the follow-up CT.RESULTS:
The initial CT findings included high density and calcifications of the aortic wall in the precontrast images and a thickened wall with enhancements in the arterial and the venous phases. A low-attenuation ring was demonstrated in the venous phase in 15 patients (83%). On the follow-up evaluation, the mean mural thickness decreased significantly from 4.1 mm to 2.4 mm. The mean mural attenuation ratio in the venous phase decreased significantly from 1.9 to 1.3 (p = 0.001). The low attenuation ring was identified in seven patients (39%) who had only with active, persistent Takayasu arteritis.CONCLUSION:
The mural changes demonstrated by the follow-up CT evaluations for the patients with active Takayasu arteritis included a decrease of the mural thickness and enhancement, disappearance of the low-attenuation ring on the venous phase, and an increase of the mural attenuation and calcification on the precontrast phase.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Artéria Pulmonar
/
Sedimentação Sanguínea
/
Iohexol
/
Aortografia
/
Tomografia Computadorizada por Raios X
/
Estudos Retrospectivos
/
Seguimentos
/
Arterite de Takayasu
/
Meios de Contraste
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Adolescente
/
Adulto
/
Criança
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Korean Journal of Radiology
Ano de publicação:
2007
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS