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7.
Rev. esp. med. nucl. (Ed. impr.) ; 29(1): 12-19, ene.-feb. 2010. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-75514

RESUMO

Llevamos a cabo un estudio retrospectivo para evaluar la exactitud, validez diagnóstica e impacto clínico de la 18F-FDG PET en el manejo de enfermedad metastásica y recurrente en pacientes con carcinoma de células renales (CCR) de nuestra base de datos. Se identificaron estudios 18F-FDG PET de 58 pacientes que cumplían con nuestros criterios de inclusión en el estudio. Se confirmaron los resultados con los hallazgos histopatológicos, seguimiento clínico (al menos 12 meses) y/o métodos convencionales de imagen (MCI).Se obtuvo una sensibilidad de 80,56%, especificidad 86,36%, exactitud dignóstica 58,7%, valor predictivo positivo 90,63%, y valor predictivo negativo 73.08%.El impacto clínico fue elevado en 25 casos (43%) y no hubo impacto en sólo 10 estudios (17,2%). Concluimos que la 18F-FDG PET es útil y que tiene elevado impacto clínico en el manejo de CCR metastático y recurrente. Basado en nuestros resultados, un estudio PET positivo fue de más ayuda al clínico que un estudio negativo en el manejo de estos pacientes(AU)


We performed a retrospective study to evaluate the accuracy, diagnostic validity, and clinical impact of 18F-FDG PET in the management of recurrent and metastatic disease in patients with Renal Cell Carcinoma (RCC) from our database. 18F-FDG PET studies were identified from 58 patients that matched our criteria for inclusion in the study. Results were confirmed with histopathological findings, clinical follow-up time (at least 12 months), and/ or conventional imaging methods (CIM).A sensitivity of 80.56%, specificity 86.36%, diagnostic accuracy 58.7%, positive predictive value 90.63%, and a negative predictive value of 73.08% were observed.The clinical impact was high in 25 cases (43%) and we found no impact in only 10 studies (17.2%). We concluded that 18F-FDG PET was useful and had a high clinical impact in the management of recurrent and metastatic RCC. From our data, it seemed that a positive PET study was more helpful to the physician than a negative study(AU)


Assuntos
Humanos , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons/instrumentação , Tomografia por Emissão de Pósitrons/métodos , Carcinoma de Células Renais/diagnóstico , Sensibilidade e Especificidade , Valor Preditivo dos Testes , Carcinoma de Células Renais , Estudos Retrospectivos
8.
Rev Esp Med Nucl ; 29(1): 12-9, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20022140

RESUMO

We performed a retrospective study to evaluate the accuracy, diagnostic validity, and clinical impact of (18)F-FDG PET in the management of recurrent and metastatic disease in patients with Renal Cell Carcinoma (RCC) from our database. (18)F-FDG PET studies were identified from 58 patients that matched our criteria for inclusion in the study. Results were confirmed with histopathological findings, clinical follow-up time (at least 12 months), and/ or conventional imaging methods (CIM). A sensitivity of 80.56%, specificity 86.36%, diagnostic accuracy 58.7%, positive predictive value 90.63%, and a negative predictive value of 73.08% were observed. The clinical impact was high in 25 cases (43%) and we found no impact in only 10 studies (17.2%). We concluded that (18)F-FDG PET was useful and had a high clinical impact in the management of recurrent and metastatic RCC. From our data, it seemed that a positive PET study was more helpful to the physician than a negative study.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Radioisótopos de Flúor , Fluordesoxiglucose F18 , Neoplasias Renais/diagnóstico por imagem , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/secundário , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/secundário , Carcinoma de Células Renais/secundário , Administração de Caso , Tomada de Decisões , Reações Falso-Negativas , Reações Falso-Positivas , Seguimentos , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/secundário , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/secundário , Metástase Linfática/diagnóstico por imagem , Recidiva Local de Neoplasia/diagnóstico por imagem , Valor Preditivo dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade
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