Imaging Characteristics of Stage I Non-Small Cell Lung Cancer on CT and FDG-PET: Relationship with Epidermal Growth Factor Receptor Protein Expression Status and Survival
Korean Journal of Radiology
;
: 375-383, 2013.
Artículo
en Inglés
| WPRIM
| ID: wpr-74080
ABSTRACT
OBJECTIVE:
To identify CT and FDG-PET features associated with epidermal growth factor receptor (EGFR) protein overexpression, and to evaluate whether imaging features and EGFR-overexpression can help predict clinical outcome. MATERIALS ANDMETHODS:
In 214 patients (M F = 129 85; mean age, 63.2) who underwent curative resection of stage I non-small cell lung cancer, EGFR protein expression status was determined through immunohistochemical analysis. Imaging characteristics on CT and FDG-PET was assessed in relation to EGFR-overexpression. Imaging features and EGFR-overexpression were also evaluated for clinical outcome by using the Cox proportional hazards model.RESULTS:
EGFR-overexpression was found in 51 patients (23.8%). It was significantly more frequent in tumors with an SUVmax > 5.0 (p 2.43 cm (p 5.0 (OR, 3.113; 95% CI, 1.375-7.049; p = 0.006) and diameter > 2.43 cm (OR, 2.799; 95% CI, 1.285-6.095; p = 0.010) were independent predictors of EGFR overexpression. Multivariate analysis showed that SUVmax > 4.0 (hazard ratio, 10.660; 95% CI, 1.370-82.966; p = 0.024), and the presence of cavitation within a tumor (hazard ratio, 3.122; 95% CI, 1.143-8.532; p = 0.026) were factors associated with poor prognosis.CONCLUSION:
EGFR-overexpression is associated with high SUVmax, large tumor diameter, and small GGO proportion. CT and FDG-PET findings, which are closely related to EGFR overexpression, can be valuable in the prediction of clinical outcome.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Tomografía Computarizada por Rayos X
/
Distribución de Chi-Cuadrado
/
Modelos de Riesgos Proporcionales
/
Tasa de Supervivencia
/
Curva ROC
/
Carcinoma de Pulmón de Células no Pequeñas
/
Estadísticas no Paramétricas
/
Radiofármacos
/
Fluorodesoxiglucosa F18
/
Tomografía de Emisión de Positrones
Tipo de estudio:
Estudio pronóstico
Límite:
Adulto
/
Anciano
/
Aged80
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Korean Journal of Radiology
Año:
2013
Tipo del documento:
Artículo
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