Publication date: Available online 22 May 2018
Source:Revista Española de Medicina Nuclear e Imagen Molecular
Author(s): C. Riola-Parada, J.L. Carreras-Delgado, V. Pérez-Dueñas, M. Garcerant-Tafur, L. García-Cañamaque
ObjetivoEvaluar la utilidad de la PET/RM con 18F-colina simultánea en la sospecha de recurrencia del carcinoma de próstata y relacionar su tasa de detección de enfermedad con variables analíticas y anatomopatológicas.Material y métodosEstudio retrospectivo de 27 pacientes con carcinoma de próstata que recibieron terapia local como tratamiento primario, a quienes se les realizó una PET/RM con 18F-colina por sospecha de recurrencia (elevación mantenida de los niveles de PSA). Los hallazgos patológicos de la PET/RM con 18F-colina fueron validados mediante el análisis anatomopatológico, otras pruebas de imagen o por la respuesta bioquímica al tratamiento oncológico.ResultadosLa PET/RM con 18F-colina detectó enfermedad en 15 de los 27 pacientes (tasa de detección del 55,56%); 4 (15%) presentaron recurrencia exclusivamente local, 5 (18%) metástasis ganglionares y 7 (26%) metástasis óseas. El PSA medio (PSAmed) a la realización del estudio fue de 2,94ng/mL (rango 0,18-10ng/mL). Los pacientes con PET/RM positiva presentaron un PSAmed de 3,70ng/mL (rango 0,24-10ng/mL), mayor que los pacientes con PET/RM negativa, PSAmed de 1,97ng/mL (rango 0,18-4,38ng/mL), aunque sin diferencias estadísticamente significativas. La puntuación Gleason al diagnóstico de los pacientes con estudio positivo fue de 7,33 (rango 6-9), y la de los pacientes con estudio negativo fue de 7 (rango 6-9), sin diferencias estadísticamente significativas.ConclusiónLa tasa de detección de la PET/RM con 18F-colina fue considerable pese a los valores relativamente bajos de PSA en nuestra muestra. La influencia de la puntuación Gleason y del nivel de PSA en la tasa de detección de la PET/RM con 18F-colina no fue estadísticamente significativa.ObjectiveTo evaluate the usefulness of simultaneous 18F-choline PET/MRI in the suspicion of prostate cancer recurrence and to relate 18F-choline PET/MRI detection rate with analytical and pathological variables.Material and methods27 patients with prostate cancer who received local therapy as primary treatment underwent a 18F-choline PET/MRI due to suspicion of recurrence (persistently rising serum PSA level). 18F-choline PET/MRI findings were validated by anatomopathological analysis, other imaging tests or by biochemical response to oncological treatment.Results18F-choline PET/MRI detected disease in 15 of 27 patients (detection rate 55.56%). 4 (15%) presented exclusively local recurrence, 5 (18%) lymph node metastases and 7 (26%) bone metastases. Mean PSA (PSAmed) at study time was 2.94ng/mL (range 0.18-10ng/mL). PSAmed in patients with positive PET/MRI was 3.70ng/mL (range 0.24-10ng/mL), higher than in patients with negative PET/MRI, PSAmed 1.97ng/mL (range 0.18-4.38ng/mL), although without statistically significant differences. Gleason score at diagnosis in patients with a positive study was 7.33 (range 6-9) and in patients with a negative study was 7 (range 6-9), without statistically significant differences.Conclusion18F-choline PET/MRI detection rate was considerable despite the relatively low PSA values in our sample. The influence of Gleason score and PSA level on 18F-choline PET/MRI detection rate was not statistically significant.
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Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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PET/RM con 18F-colina en la sospecha de recurrencia del carcinoma de próstata
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