Resonancia magnética y su valor para el diagnóstico de cáncer de próstata período 2007 - 2008
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2014
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Universidad de Guayaquil. Facultad de Ciencias Médicas. Escuela de Graduados
Resumen
El cáncer de próstata contunia siendo una de las enfermedades oncológicas más frecuentes entre hombres de más de 50 años y una de las de mayor mortalidad. A pesar de la incorporación de la ecografía transrectal para el estudio de esta neoplasia, la edad de diagnóstico continua siendo en promedio 70 años y frecuentemente el cáncer detectado suele ser muy agresivo y estar en etapas avanzadas. La resonancia magnética es una técnica imagenológica con un sin número de aplicaciones, muchas de las cuales aún hoy se estudian. Una de éstas, es el estudio de las tumoraciones prostáticas. En el estudio se propuso comprobar la hipótesis de que el impacto de la RM en el diagnóstico de patología neoplásica de próstata era bueno. Odjetivo: Conocer si la resonancia magnética nuclear tiene impacto en el diagnóstico de enfermedad neoplásica de próstata en pacientes son sospecha de esta patología en el periodo comprendido entre el 1 de febrero a 31 de enero de 2008. Metodología: Estudio transversal que incluirá a todos los pacientes que sean solicitados con estudio de próstata por tumoración de prátata. Análisis estadístico: sensibilidad (S), especifidad (E), tasa de falsos positivos (TFP), tasa de falsos negativos (TFN, valor predictivo positivo (VPP), valor predictivo negativo (VPN), chance pretest positivo (OR+), chance pretest negativo (OR-). Resultados: El estudio mostró que la resonancia magnética en pacientes bajo sospecha clínica de patología de próstata tuvo una sensibilidad del 94% y una especificidad del 96% y un alto valor predictivo positivo 89% y negativo 98%. La prevalencia de CaP entre pacienbtes con sospecha de patología de próstata fue alta (25%)
Prostate cancer continues to be one of the most frequent oncological diseases among men over 50 years of age and one of the highest mortality rates. Despite the incorporation of transrectal ultrasound for the study of this neoplasm, the diagnostic age continues to be 70 years on average and frequently the detected cancer is usually very aggressive and in advanced stages. Magnetic resonance is an imaging technique with a number of applications, many of which are still studied today. One of these is the study of prostatic tumors. In the study, it was proposed to test the hypothesis that the impact of MRI in the diagnosis of neoplastic prostate disease was good. Odjective: To know if nuclear magnetic resonance has an impact on the diagnosis of neoplastic prostate disease in patients are suspected of this pathology in the period between February 1 to January 31, 2008. Methodology: Cross-sectional study that will include all patients who are requested with a prostate study due to a pituitary tumor. Statistical analysis: sensitivity (S), specificity (E), false positive rate (TFP), false negative rate (TFN, positive predictive value (VPP), negative predictive value (NPV), positive pretest chance (OR +), chance negative pretest (OR-). Results: The study showed that magnetic resonance in patients under clinical suspicion of prostate pathology had a sensitivity of 94% and a specificity of 96% and a high positive predictive value 89% and a negative 98%. The prevalence of PCa among patients with suspected prostate disease was high (25%)
Prostate cancer continues to be one of the most frequent oncological diseases among men over 50 years of age and one of the highest mortality rates. Despite the incorporation of transrectal ultrasound for the study of this neoplasm, the diagnostic age continues to be 70 years on average and frequently the detected cancer is usually very aggressive and in advanced stages. Magnetic resonance is an imaging technique with a number of applications, many of which are still studied today. One of these is the study of prostatic tumors. In the study, it was proposed to test the hypothesis that the impact of MRI in the diagnosis of neoplastic prostate disease was good. Odjective: To know if nuclear magnetic resonance has an impact on the diagnosis of neoplastic prostate disease in patients are suspected of this pathology in the period between February 1 to January 31, 2008. Methodology: Cross-sectional study that will include all patients who are requested with a prostate study due to a pituitary tumor. Statistical analysis: sensitivity (S), specificity (E), false positive rate (TFP), false negative rate (TFN, positive predictive value (VPP), negative predictive value (NPV), positive pretest chance (OR +), chance negative pretest (OR-). Results: The study showed that magnetic resonance in patients under clinical suspicion of prostate pathology had a sensitivity of 94% and a specificity of 96% and a high positive predictive value 89% and a negative 98%. The prevalence of PCa among patients with suspected prostate disease was high (25%)
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Neoplasias de la próstata, Espectroscopía de resonancia magnética, Diagnóstico, Hospital de Especialidades Dr. Teodoro Maldonado Carbo, Cantón Guayaquil, Ecuador