RESUMO
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Assuntos
Humanos , Feminino , Idoso , Doença de Erdheim-Chester/diagnóstico por imagem , Artralgia/diagnóstico por imagem , Histiocitose/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Traumatismos do Joelho/diagnóstico por imagem , Diagnóstico Diferencial , Tomografia Computadorizada por Raios X/métodosAssuntos
Artralgia/diagnóstico por imagem , Doença de Erdheim-Chester/diagnóstico por imagem , Fêmur/diagnóstico por imagem , Biópsia Guiada por Imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Cintilografia , Tíbia/diagnóstico por imagem , Tecido Adiposo/patologia , Idoso , Artralgia/etiologia , Diagnóstico Diferencial , Doença de Erdheim-Chester/complicações , Doença de Erdheim-Chester/diagnóstico , Doença de Erdheim-Chester/patologia , Feminino , Radioisótopos de Flúor , Fluordesoxiglucose F18 , Histiócitos/química , Histiócitos/patologia , Humanos , Mutação , Osso Nasal/diagnóstico por imagem , Osteíte Deformante/diagnóstico , Osteólise/diagnóstico por imagem , Osteólise/etiologia , Proteínas Proto-Oncogênicas B-raf/genética , Compostos Radiofarmacêuticos , Medronato de Tecnécio Tc 99m , Vasculite/diagnósticoRESUMO
OBJETIVO: Analizar las características epidemiológicas y antropométricas de los pacientes con activación de la grasa parda detectada por tomografía por emisión de positrones con fluoruro 18-fluorodeoxiglucosa/tomografía computarizada (18F-FDG PET/TC). MATERIAL Y MÉTODOS: De 2005 a 2017, se incluyeron retrospectivamente 818 estudios PET/TC con 18F-FDG positivos para detección de grasa parda, 742 exámenes realizados en población adulta y 76 PET/TC en población pediátrica. Se realizó una prueba de Chi cuadrado para comparar la distribución de las características entre pacientes adultos y pediátricos. RESULTADOS: Los adultos mostraron una tasa más alta de detección de grasa parda en mujeres (79% vs.61%, p < 0,001) y en pacientes con hiperglucemia (> 100mg/dl) (24% vs.16%, p = 0,02), no se encontraron diferencias significativas considerando el sobrepeso (IMC>25kg/m2) (22% vs.20%, p = 0,55). Teniendo en cuenta solo a mujeres, los adultos mostraron una tasa más alta de detección de grasa parda tanto en pacientes con hiperglucemia (83% frente a 42%, p < 0,001), como en pacientes con sobrepeso (80% frente a 67%, p = 0,005). En ambas poblaciones, la activación de la grasa parda ocurrió con mayor frecuencia en las estaciones frías; no hubo diferencias significativas en la distribución considerando la temporada de nacimiento (p = 0,2). CONCLUSIONES: El sexo, la glucemia y el IMC desempeñan un papel importante en la predicción de la activación de la grasa parda, con diferencias significativas entre adultos y niños. Se confirma que la exposición al frío es un factor de predicción importante, mientras que la temporada de nacimiento no es significativa
PURPUSE: To analyze epidemiological and anthropometric features of patients with brown adipose tissue (BAT) activation detected by fluorine18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). MATERIAL AND METHODS: From 2005 to 2017, 818 18F-FDG PET/CT studies positive for BAT detection were retrospectively included, 742 examinations performed on the adult population and 76 PET/CT on the pediatric population. A Chi-squared test was performed to compare features distribution between the adult and pediatric patients. RESULTS: Adults showed a higher rate of BAT detection in females (79% vs.61%, p < 0.001) and in hyperglycaemic patients (>100mg/dL) (24% vs.16%, p = 0.02), no significant difference was found with regard to overweight patients (BMI>25kg/m2) (22% vs.20%, P=.55). Considering females only, the adults showed a higher rate of BAT detection both in hyperglycaemic (83% vs.42%, p < 0.001) and overweight patients (80% vs.67%, p = 0.005). In both populations BAT activation happened more frequently in cold seasons; there was no significant distribution difference with regard to season of birth (p = 0.2). CONCLUSIONS: Sex, glycemia and BMI play a major role in predicting BAT activation, with significant differences between adults and pediatric patients. Cold exposure is confirmed as an important predicting factor, while season of birth is not significant
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Tecido Adiposo Marrom/diagnóstico por imagem , Envelhecimento/fisiologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Sobrepeso/diagnóstico por imagem , Sobrepeso/epidemiologia , Termogênese/fisiologia , Tecido Adiposo Marrom/fisiologia , Índice de Massa Corporal , Itália/epidemiologia , Especificidade de Órgãos , Sobrepeso/fisiopatologia , Estudos Retrospectivos , ComorbidadeRESUMO
PURPOSE: To analyze epidemiological and anthropometric features of patients with brown adipose tissue (BAT) activation detected by fluorine18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). MATERIAL AND METHODS: From 2005 to 2017, 818 18F-FDG PET/CT studies positive for BAT detection were retrospectively included, 742 examinations performed on the adult population and 76 PET/CT on the pediatric population. A Chi-squared test was performed to compare features distribution between the adult and pediatric patients. RESULTS: Adults showed a higher rate of BAT detection in females (79% vs. 61%, P<0.001) and in hyperglycaemic patients (>100mg/dL) (24% vs. 16%, P=0.02), no significant difference was found with regard to overweight patients (BMI>25kg/m2) (22% vs. 20%, P=.55). Considering females only, the adults showed a higher rate of BAT detection both in hyperglycaemic (83% vs. 42%, P<0.001) and overweight patients (80% vs. 67%, P=0.005). In both populations BAT activation happened more frequently in cold seasons; there was no significant distribution difference with regard to season of birth (P=0.2). CONCLUSIONS: Sex, glycemia and BMI play a major role in predicting BAT activation, with significant differences between adults and pediatric patients. Cold exposure is confirmed as an important predicting factor, while season of birth is not significant.