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Search Results: 1 - 10 of 477215 matches for " Alberto A. Marangoni "
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El trabajo editorial: Perspectivas
Alberto A. Marangoni
Revista Argentina de Radiología , 2010,
Abstract:
Evaluación de la subestimación diagnóstica e incidencia en nódulos mamarios BI-RADS 3, 4 y 5 estudiadas mediante biopsia-core guiada por ecografía
Tiscornia,María Paula; Frola,Marisa; Diomedi,Mabel; Marangoni,Alberto;
Revista argentina de radiolog?-a , 2011,
Abstract: objectives. to retrospectively determine the false negatives rate and the extent of underestimation of ultrasound-guided core biopsy of breast nodules, and to determine the incidence of the various lesions presenting as breast nodules. materials and methods. we studied core biopsies of breast nodules from january 2000 to september 2010, performed by a radiologist with 10 years experience in breast imaging, using 14-gauge and 10-cm needles. for ultrasound guidance, two ultrasound machines with a 5-12 mhz linear transducer were used. biopsied lesions had a moderate or high suspicion of malignancy (bi-rads 4 and 5) and some were probably benign lesions (bi-rads 3). histological findings of core-biopsy were correlated with those of surgery for each lesion. cases of benign lesions which had not been operated on underwent a 1- to 10-year clinical and radiological follow-up. results. a total of 190 biopsies were performed. the false negative rate was 3%, sensitivity was 95% and specificity was 100% (ppv 100% and npv 95%). discussion. there was 94% consistency between core biopsy results and surgery. the false negative rate is acceptable as compared to other reports, where it ranges from 0 to 8%. conclusions. this study indicates that ultrasound-guided core biopsy is a valid method, with a high degree of accuracy and a low rate of false negatives and underestimation, in the diagnosis malignant and benign of breast nodules. this has been confirmed by surgical excision and / or clinical and imaging follow-up of different lesions.
Evaluación de la subestimación diagnóstica e incidencia en nódulos mamarios BI-RADS 3, 4 y 5 estudiadas mediante biopsia-core guiada por ecografía Evaluation of diagnostic underestimation and incidence in BI-RADS 3, 4 and 5 nodules studied by ultrasound- guided core biopsy.
María Paula Tiscornia,Marisa Frola,Mabel Diomedi,Alberto Marangoni
Revista Argentina de Radiología , 2011,
Abstract: Objetivos. Determinar retrospectivamente el índice de falsos negativos y el grado de subestimación de la punción con aguja gruesa eco-guiada de nódulos mamarios. Establecer la incidencia de las diferentes lesiones que se manifiestan como nódulos mamarios. Materiales y Métodos. Se estudiaron las punciones de nódulos mamarios desde enero del 2000 a septiembre del 2010. Las mismas fueron realizadas por un radiólogo con 10 a os de experiencia y se utilizaron agujas de corte de 14-gauge y 10 cm de longitud. Para la guía ecográfica se usaron dos ecógrafos con transductores lineales de 5-12 MHz. Se punzaron lesiones de moderada y alta sospecha de malignidad (BI-RADS 4 y 5) y algunas lesiones probablemente benignas (BI-RADS 3). Se correlacionaron los hallazgos histológicos de la punción y de la cirugía para cada lesión. A los casos con resultado benigno que no fueron operados se les realizó un seguimiento clínico de entre uno y diez a os. Resultados. Se realizaron 190 punciones. El índice de falsos negativos fue del 3%, la sensibilidad de 95% y la especificidad de 100% (VPP de 100% y VPN de 95%). Discusión. Hubo coincidencia entre los resultados de las punciones y la cirugía en un 94%. El índice de falsos negativos es aceptable en comparación con otros reportes donde varía entre 0 y 8%. Conclusiones. Este estudio indica que la punción con aguja de corte eco-guiada es un método válido, con alto grado de precisión y bajo índice de subestimación y falsos negativos para el diagnóstico de nódulos mamarios malignos y benignos. Esto fue comprobado mediante la escisión quirúrgica y/o el seguimiento clínico- imagenológico de las diferentes lesiones. Objectives. To retrospectively determine the false negatives rate and the extent of underestimation of ultrasound-guided core biopsy of breast nodules, and to determine the incidence of the various lesions presenting as breast nodules. Materials and Methods. We studied core biopsies of breast nodules from January 2000 to September 2010, performed by a radiologist with 10 years experience in breast imaging, using 14-gauge and 10-cm needles. For ultrasound guidance, two ultrasound machines with a 5-12 MHz linear transducer were used. Biopsied lesions had a moderate or high suspicion of malignancy (BI-RADS 4 and 5) and some were probably benign lesions (BI-RADS 3). Histological findings of core-biopsy were correlated with those of surgery for each lesion. Cases of benign lesions which had not been operated on underwent a 1- to 10-year clinical and radiological follow-up. Results. A total of 190 biopsies were performed. The fals
Etimologías relacionadas con el bazo
Alberto Marangoni
Revista Argentina de Radiología , 2008,
Abstract:
Etimología de las palabras frénico y diafragma
Alberto Marangoni
Revista Argentina de Radiología , 2010,
Abstract:
La divulgación científica y la ense anza por medios electrónicos
Alberto Marangoni
Revista Argentina de Radiología , 2011,
Abstract:
El origen de las palabras: etimología de algunos términos usados en medicina
Alberto Marangoni
Revista Argentina de Radiología , 2009,
Abstract:
Un análisis del a o que finaliza: Perspectivas para el futuro
Alberto Marangoni
Revista Argentina de Radiología , 2011,
Abstract:
Neumatosis intestinal asociada a neumatosis portal intrahepática por oclusión intestinal: presentación de un caso
Granero,Lucas E; Ballario,Federico; García,Sebastián; Badra,Roberto; Galetti,Cayetano; Marangoni,Alberto;
Revista argentina de radiolog?-a , 2010,
Abstract: the pneumatosis intestinalis is a very infrequent condition associated with a number of diseases, such as mesenteric infarction, necrotizing enterocolitis, and obstructive pulmonary disease characterized by the presence of subserosal or submucosal gas cyst throughout the gastrointestinal tract. a 63- year- old man complained of upper abdominal pain, vomiting and high fever (39o c) on the nine day after total gastrectomy for cancer. abdominal x-ray revealed intestinal distension. the abdominal computed tomography (ct) showed intestinal dilatation, mesenteric oedema, diffuse pneumatosis throughout the small intestine and gas in the portal venous system predominantly in the left hepatic lobe. it was performed emergency activity that revealed intestinal distension secondary to adhesion without intestinal necrosis. the patient had a downhill course and died thereafter. we report a new case and reviewed the literature of pneumatosis intestinalis associated with hepatic portal venous gas.
Aporte de la Resonancia Magnética en el diagnóstico del Síndrome de Embolia Grasa Cerebral: Reporte de cuatros casos Contribution of Magnetíc Resonance Imaging to the diagnosis of Cerebral Fat Embolism Syndrome: Report of four cases
Alberto Surur,Cayetano Galletti,Juan José Martín,Alberto Marangoni
Revista Argentina de Radiología , 2012,
Abstract: El síndrome de embolia grasa (SEG) es una entidad poco frecuente de difícil diagnóstico clínico y una causa importante de morbimortalidad en pacientes con politraumatismos. Es la manifestación clínica de la presencia de glóbulos grasos en la circulación sistémica y se caracteriza, fundamentalmente, por el desarrollo de insuficiencia respiratoria, síntomas neurológicos y exantema petequial. Se asocia principalmente con complicación de fracturas de huesos largos, aunque puede ser causada por otros tipos de patologías. El diagnóstico se ha basado clásicamente en los hallazgos clínicos. Por este motivo, presentamos cuatro casos donde la Resonancia Magnética (RM) de encéfalo tuvo un rol fundamental en el diagnóstico. Fat Embolism Syndrome (FES) is an uncommon entity characterized by a difficult clinical diagnosis and high morbi-mortality in polytrauma patients. It is the clinical manifestation of the presence of fatty cells in the systemic circulation and it is mainly characterized by the development of respiratory failure, neurologic symptoms and petechial rash. Although it has been largely associated with long-bone fractures, it may be caused by other types of pathologies. Clinical findings have been classically used for the diagnosis. Therefore, we report on four cases where brain Magnetic Resonance Imaging (MRI) had a key role in the diagnosis.
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