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Inicio Acta Otorrinolaringológica Española Comparación entre la PET 18F-FDG y las técnicas de imagen convencionales (T AC...
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Vol. 57. Issue 10.
Pages 441-445 (December 2006)
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Vol. 57. Issue 10.
Pages 441-445 (December 2006)
Comparación entre la PET 18F-FDG y las técnicas de imagen convencionales (T ACy RMN) en el diagnóstico de sospecha de recurrencia de tumores de cabeza y cuello
Comparison between 18F-FDG PET and conventional imaging techniques (CT SCAN and MRI) in the diagnosis of head and neck tumor suspicion of recurrence
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J.A. Pasamontes Pingarron1,1
Corresponding author
maria.jantonio@tiscali.es

Correspondencia: Juan Antonio Pasamontes Pingarrón C/ Santa Engracia, 162 - 2º dcha. 28003 Madrid.
, M.N. Cabrera Martin2, J.L. Carreras Delgado3, B. Scola Yurrita4, F. Calvo Manuel5, R.C. Delgado Bolton2
1 Servicio de Otorrinolaringología. Hospital de Móstoles. Madrid
2 Instituto PET Focuscan. Madrid
3 Servicio de Medicina Nuclear. Hospital Clínico San Carlos. Madrid
4 Servicio de Otorrinolaringología
5 Servicio de Oncología Radioterápica. Hospital General Universitario Gregorio Marañón. Madrid
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Resumen
Objetivo

El proposito de este estudio fue evaluar los resultados obtenidos con la Tomografia por Emision de Positrones (PET) y con los metodos de imagen anatomicos convencionales (TAC y RMN), en el diagnostico de sospecha de recurrencia tumoral en canceres de cabeza y cuello.

Pacientes y métodos

Se revisaron retrospectivamente 30 pacientes con sospecha de recidiva tumoral por canceres de cabeza y cuello, a los que les fueron realizados 34 estudios PET. Las imagenes fueron obtenidas en el Instituto PET de Madrid. Se interpretaron mediante analisis visual y semicuantitativo. La confirmacion de los resultados se hizo por seguimiento clinico, respuesta a tratamiento o estudio histologico.

Resultados

La sensibilidad y especificidad de la PET fueron 95,6% y 81,8% respectivamente, mientras que para la TAC/RMN fueron de 65% y 80%.

Conclusiones

Podemos concluir que la PET aporta mejores resultados que las tecnicas de imagen convencionales en la deteccion de recurrencia tumoral.

Palabras clave:
Tomografia por emision de positrones
PET
PET 18FFDG
Cancer de cabeza y cuello
Recurrencia tumoral
Abstract
Background

This study aimed to assess the results obtained with the positron emission tomography (PET) and conventional anatomic imaging methods (CT scan and MRI) in the diagnosis of suspicion of tumor recurrence in head and neck cancers.

Methods

Thirty patients with suspicion of tumor recurrence due to head and neck cancers were reviewed retrospectively. Consequently, 34 PET studies were performed. The images were obtained in the PET Institute of Madrid. They were interpreted by visual and semiquantitative analysis. The results were confirmed with clinical followup, response to treatment or with histological studies in some cases.

Results

Sensitivity and specificity of the PET were 95.6% and 81.8% respectively, while it was 65% and 80% for the CT scan/MRI.

Conclusions

We can conclude that PET provides better results than conventional imaging techniques in the detection of head and neck cancer recurrence.

Key words:
Positron emission tomography
PET
18F-FDG PET
Head
neck cancer
Tumor recurrence

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