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Alves, Venâncio Avancini Ferreira
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Id: biblio-949206
Autor: Nacif, Lucas Souto; Paranagua-Vezozzo, Denise C; Matsuda, Alina; Alves, Venancio Avancini Ferreira; Carrilho, Flair J; Farias, Alberto Queiroz; D'Albuquerque, Luiz Carneiro; Andraus, Wellington.
Título: Higher values in liver elastography and meld score are mortality predictors on liver transplant waiting list / Valores mais altos na elastografia do fígado e pontuação meld são preditores de mortalidade na lista de espera do transplante de fígado
Fonte: ABCD arq. bras. cir. dig;31(1):e1360, 2018. tab.
Idioma: en.
Resumo: ABSTRACT Background: Liver elastography have been reported in hepatocellular carcinoma (HCC) with higher values; however, it is unclear to identify morbimortality risk on liver transplantation waiting list. Aim: To assess liver stiffness, ultrasound and clinical findings in cirrhotic patients with and without HCC on screening for liver transplant and compare the morbimortality risk with elastography and MELD score. Method: Patients with cirrhosis and HCC on screening for liver transplant were enrolled with clinical, radiological and laboratory assessments, and transient elastography. Results: 103 patients were included (without HCC n=58 (66%); HCC n=45 (44%). The mean MELD score was 14.7±6.4, the portal hypertension present on 83.9% and the mean transient elastography value was 32.73±22.5 kPa. The median acoustic radiation force impulse value of liver parenchyma was 1.98 (0.65-3.2) m/s and 2.16 (0.59-2.8) m/s in HCC group. The HCC group was significantly associated with HCV infection (OR 26.84; p<0.0001), higher levels of serum alpha-fetoprotein (OR 5.51; p=0.015), clinical portal hypertension (OR 0.25; p=0.032) and similar MELD score (p=0.693). The area under the receiver operating characteristics (AUROC) showed sensitivity and specificity for serum alpha-fetoprotein (cutoff 9.1 ng/ml), transient elastography value (cutoff value 9 kPa), and acoustic radiation force impulse value (cutoff value 2.56 m/s) of 50% and 86%, 92% and 17% and 21% and 92%, respectively. The survival group had a mean transient elastography value of 31.65±22.2 kPa vs. 50.87±20.9 kPa (p=0.098) and higher MELD scores (p=0.035). Conclusion: Elastography, ultrasound and clinical findings are important non-invasive tools for cirrhosis and HCC on screening for liver transplant. Higher values in liver elastography and MELD scores predict mortality.

RESUMO Racional: A elastografia hepática tem sido relatada nos carcinomas hepatocelulares (CHC); porém, não é claro identificar o risco de morbimortalidade na lista de transplante hepático. Objetivo: Avaliar a morbimortalidade com elastografia transitória e escore MELD. Método: Pacientes adultos com cirrose na triagem para transplante de fígado foram incluídos no estudo. Resultados: Foram incluídos 103 pacientes (sem CHC n=58 (66%), CHC n=45 (44%). O escore MELD médio foi de 14,7±6,4, a hipertensão portal foi de 83,9% e o valor médio de elastografia transitória foi de 32,73±22,5 kPa. O valor médio de ARFI (Impulsão de Força de Radiação Acústica) do parênquima hepático foi de 1,98 (0,65-3,2) m/s e 2,16 (0,59-2,8) m/s no grupo CHC. O grupo CHC foi significativamente associado à infecção por vírus da hepatite C (OR 26,84, p<0,0001), níveis mais altos de alfa-feto proteína sérica (OR 5,51; p=0,015), hipertensão portal clínica (OR 0,25; p=0,032) e pontuação MELD semelhante (p=0,693). Os valores de AUROCs (Area Under the Receiver Operating Characteristics) mostraram sensibilidade e especificidade para a alfa-feto proteína sérica (limite de 9,1 ng/ml), valor elastografia transitória (valor de corte 9 kPa) e valor ARFI (valor de corte 2,56 m/s) de 50% e 86%, 92% e 17% e 21% e 92%, respectivamente. O grupo de sobrevivência apresentou valor elastografia transitória médio de 31,65±22,2 kPa vs. 50,87±20,9 kPa (p=0,098) e valores mais elevados de MELD (p=0,035). Conclusão: Valores mais elevados na elastografia do fígado e nos escores MELD predizem a mortalidade.
Descritores: Carcinoma Hepatocelular/mortalidade
Carcinoma Hepatocelular/diagnóstico por imagem
Técnicas de Imagem por Elasticidade
Cirrose Hepática/mortalidade
Cirrose Hepática/diagnóstico por imagem
Neoplasias Hepáticas/mortalidade
Neoplasias Hepáticas/diagnóstico por imagem
-Prognóstico
Valor Preditivo dos Testes
Listas de Espera
Transplante de Fígado
Carcinoma Hepatocelular/cirurgia
Carcinoma Hepatocelular/complicações
Cirrose Hepática/cirurgia
Cirrose Hepática/complicações
Neoplasias Hepáticas/cirurgia
Neoplasias Hepáticas/complicações
Limites: Humanos
Masculino
Feminino
Adulto
Idoso
Responsável: BR1.1 - BIREME


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Id: biblio-1250490
Autor: Cruz, Igor C.K. da; Gasser, Beatriz; Maronezi, Marjury Cristina; Uscategui, Ricardo Andrés R; Feliciano, Marcus Antônio R; Padilha-Nakaghi, Luciana Cristina; Aires, Luiz Paulo N; Silva, Priscila D. A. da.
Título: Applicability of B-mode ultrasonography, ARFI elastography and contrast-enhanced ultrasound in the evaluation of chronic kidney disease in dogs / Aplicabilidade da ultrassonografia modo-B, elastografia ARFI e ultrassonografia contrastada na avaliação da doença renal crônica em cães
Fonte: Pesqui. vet. bras = Braz. j. vet. res;41:e06785, 2021. tab, ilus.
Idioma: en.
Projeto: FAPESP; . CNPq.
Resumo: The objective of this study was to verify the applicability of B-mode ultrasonography, ARFI elastography and CEUS in the diagnosis of chronic kidney disease and its Stages in dogs. 24 healthy dogs and 28 with CKD were included. In B-mode, the echogenicity, echotexture and cortico-medullary ratio of the kidneys were verified. By elastography, the shear-wave velocity of the cortical (SWVcort) and medullary (SWVmed) regions were determined and tissue deformity was evaluated. Wash-in, wash-out and peak enhancement (TPic) of the contrast in the renal parenchyma were calculated and homogeneity, presence of filling gaps and distinction of filling phases were evaluated by CEUS. Changes in echogenicity, echotexture and cortico-medullary ratio were observed only in sick patients. There was an increase in SWVcort in CKD, with a cutoff point >2.91m/s. Healthy kidneys were non-deformable and 25% had changes in gray scales. There was an increase in wash-in and TPic, changes in filling characteristics, filling failures and difficulty in distinguishing between the Stages in CEUS in CKD. It was found that dogs with CKD 2, 3 and 4 had greater SWVcort and wash-in values than CKD 1. Elastographic and CEUS changes were observed in dogs with CKD, demonstrating the applicability of ultrasonographic techniques in their diagnosis.(AU)

O objetivo deste estudo foi verificar a aplicabilidade da ultrassonografia modo-B, elastografia ARFI e CEUS no diagnóstico da doença renal crônica e seus estágios em cães. Foram incluídos 24 cães saudáveis e 28 com DRC. Pelo modo-B, verificou-se ecogenicidade, ecotextura e relação córtico-medular dos rins. Pela elastografia, foram determinadas as velocidades de cisalhamento das regiões cortical (SWVcort) e medular (SWVmed) e foi avaliada a deformidade tecidual. Calculou-se os temos de wash-in, wash-out e pico de intensidade (TPic) do parênquima renal e avaliou-se homogeneidade, presença de falhas e distinção das fases de preenchimento por contraste por meio de CEUS. Alterações em ecogenicidade, ecotextura e relação córtico-medular foram observadas somente em pacientes doentes. Houve aumento da SWVcort na DRC, com ponto de corte >2.91m/s. Rins saudáveis foram não-deformáveis e 25% apresentou alterações nas escalas de cinza. Houve aumento do wash-in e TPic, alterações nas características de preenchimento, falhas e dificuldade para distinguir as fases de preenchimento do contraste nos rins com DRC. Verificou-se que cães com DRC graus 2, 3 e 4 tiveram valores de SWVcort e wash-in maiores que cães com DRC grau 1. Foram obsrervadas alterações elastográfica e de CEUS em cães com DRC, demonstrando a aplicabilidade destas técnicas ultrassonográficas no seu diagnóstico.(AU)
Descritores: Anormalidades Congênitas
Ultrassonografia
Insuficiência Renal Crônica
Técnicas de Imagem por Elasticidade
-Perfusão
Rim
Limites: Animais
Cães
Responsável: BR68.1 - Biblioteca Virginie Buff D'Ápice


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Id: biblio-1278913
Autor: Sengul, Demet; Sengul, Ilker.
Título: Comments: Effect of the location and size of thyroid nodules on the diagnostic performance of ultrasound elastography: A retrospective analysis
Fonte: Clinics;76:e2891, 2021.
Idioma: en.
Descritores: Neoplasias da Glândula Tireoide/diagnóstico
Nódulo da Glândula Tireoide/diagnóstico por imagem
Técnicas de Imagem por Elasticidade
-Estudos Retrospectivos
Diagnóstico Diferencial
Limites: Humanos
Tipo de Publ: Comentário
Carta
Responsável: BR1.1 - BIREME


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Id: biblio-978279
Autor: Prieto O, Jhon E; Garzón-Orjuela, Nathaly; Sánchez P, Santiago; Prieto O, Robin G; Ochoa D, Andrés F; Eslava-Schmalbach, Javier.
Título: Elastografía en tiempo real (Supersonic): comportamiento de la prueba en una cohorte de pacientes con cirrosis en un centro médico de Bogotá / Real-time shearwave elastography (SSWE) in a cohort of patients with cirrhosis at a medical center in Bogotá
Fonte: Rev. colomb. gastroenterol;33(3):235-241, jul.-set. 2018. tab, graf.
Idioma: es.
Resumo: Resumen Introducción: la cirrosis, entendida como un proceso dinámico y reversible, es el resultado final de las enfermedades hepáticas crónicamente progresivas de diferentes etiologías. Los métodos no invasivos basados en ecografía se han convertido paulatinamente en una herramienta diagnóstica útil en el estudio de las hepatopatías. Dentro de estos métodos, la elastografía en tiempo real, o Supersonic, de reciente introducción en nuestro medio, nos permite estudiar estos pacientes. Objetivo: evaluar el comportamiento de la elastografía en tiempo real en pacientes con cirrosis en un centro de atención de enfermedades hepáticas y digestivas en la ciudad de Bogotá. Materiales y métodos: estudio piloto retrospectivo de una cohorte con pacientes cirróticos con diagnóstico comprobado por biopsia hepática, imágenes, clínica o una combinación de estas. Resultados: se incluyeron 65 pacientes diagnosticados con cirrosis, la mediana de edad fue 58 años, 61,5% mujer y 38,5% hombre. Se encontró una mediana de rigidez hepática de 16,6 kilopascal (kPs) (RIQ de 13,9-19,5), con valor mínimo de 12 y un máximo de 30,5; sin una diferencia estadísticamente significativa entre mujeres y hombres dentro de los grupos con y sin biopsia (p = 0,64 y p = 0,26, respectivamente). Conclusión: los valores de la rigidez hepática de los pacientes cirróticos analizados en este estudio piloto se encontraron dentro de los reportados en los estudios iniciales de las pruebas a nivel internacional, por lo que se podría sugerir la realización de esta prueba no invasiva en pacientes con sospecha de cirrosis, evitando así las complicaciones de la biopsia hepática.

Abstract Introduction: Cirrhosis, understood as a dynamic and reversible process, is the final result of chronically progressive liver diseases of various etiologies. Non-invasive methods based on ultrasound have gradually become useful diagnostic tools for studying liver diseases. Real-time supersonic shearwave elastography (SSWE) study of these patients has recently been introduced to Colombia. Objective: The objective of this study was to evaluate real-time SSWE in patients with cirrhosis at a center for the treatment of liver and digestive diseases in Bogotá. Materials and Methods: This is a retrospective pilot study of a cohort of cirrhotic patients with diagnoses confirmed by liver biopsies, imaging, clinical indicators or a combination of these. Results: Sixty-five patients who had been diagnosed with cirrhosis were included in this study. The median age was 58 years, 61.5% were women, and 38.5% were men. We found that median hepatic stiffness was 16.6 kilopascals (kPs), the interquartile range was 13.9 -19.5, the minimum value was 12, and the maximum value was 30.5. There were no statistically significant differences between women and men, within groups and with and without biopsies (p = 0.64 and p = 0.26 respectively). Conclusions: Hepatic rigidity measurements for cirrhotic patients analyzed in this pilot study were within the ranges reported in initial international tests, so this non-invasive test should be considered for patients suspected of having cirrhosis as a way to avoid complications of liver biopsies.
Descritores: Medidas, Métodos e Teorias
Técnicas de Imagem por Elasticidade
-Pacientes
Biópsia
Ultrassonografia
Hepatopatias
Limites: Humanos
Tipo de Publ: Ensaio Clínico
Responsável: CO354 - Sociedad Colombiana de Gastroenterología


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Id: biblio-1115596
Autor: Gómez-Zuleta, Martín Alonso; Ruiz-Morales, Óscar-Fernando; Marulanda-Fernández, Hernando.
Título: Desarrollo de modelos educativos para el aprendizaje de nuevas técnicas endoscópicas: miotomía endoscópica por vía oral (POEM) y elastografía por ultrasonido endoscópico / Educational models for learning Peroral Endoscopic Myotomy (POEM) and Endoscopic Ultrasound Elastography
Fonte: Rev. colomb. gastroenterol;35(1):8-17, 2020. graf.
Idioma: es.
Resumo: Resumen Objetivos: presentar el desarrollo de modelos educativos para el aprendizaje de dos técnicas endoscópicas vigentes, ampliamente difundidas y de gran implicación clínica, con la única intención de permitir la adquisición de destrezas básicas y avanzadas a residentes y gastroenterólogos. Materiales y métodos: se idearon dos modelos sencillos, de muy bajo costo, fácilmente reproducibles y reutilizables, con los cuales se logra ejecutar la totalidad de los procedimientos descritos. Además, permiten al operador integrar el desarrollo de habilidades y la adquisición de los conceptos teóricos mínimos requeridos, sin las presiones generadas por el riesgo existente de complicaciones. Resultados: la tendencia actual a nivel mundial se conduce hacia el desarrollo de modelos de enseñanza que aceleren la curva de aprendizaje, así como de procedimientos altamente exigentes y asociados a complicaciones potencialmente graves. Con estos modelos es posible poner a prueba al endoscopista, mediante una evaluación continua y supervisada. Su implementación en unidades de gastroenterología es sencilla, sin la necesidad de una inversión superlativa o el desplazamiento a otros países. Conclusiones: se trata de un gran aporte al desarrollo científico y educativo de nuestro país, ya que la creación y la implementación de nuevas técnicas endoscópicas y su aprendizaje no deben ser asumidos por los pacientes. En este punto, estamos de acuerdo con los conceptos emitidos por diferentes asociaciones médicas respecto a que los cursos teórico-prácticos de corta duración -y en algunas ocasiones virtuales- no constituyen una formación mínima, requerida para lograr la acreditación.

Abstract Objectives: This article presents the development of educational models for learning two widespread recent endoscopic techniques which have great clinical implications. Its sole intention is to allow acquisition of basic and advanced skills by residents and gastroenterologists. Materials and methods: Two simple, very low cost, easily reproducible and reusable models were devised. Procedures are fully described in ways that allow the operator to integrate the development of skills and acquisition of the minimum theoretical concepts required without the pressures generated by risks of complications. Results: The current global trend is to develop teaching models that accelerate the learning curve for highly demanding procedures that are associated with potentially serious complications. With these models it is possible to test endoscopists through continuous supervised evaluations. Implementation by gastroenterology units can be done easily without the need for large investments or travel to other countries. Conclusions: This is a great contribution to the scientific and educational development of Colombia since neither development of new endoscopic techniques nor the process of learning how to perform them should put patients at risk. We agree with the ideas of numerous medical associations regarding theoretical-practical courses of short duration even though some virtual sessions, "do not constitute the minimum training required needed for accreditation".
Descritores: Modelos Educacionais
Técnicas de Imagem por Elasticidade
Miotomia
-Ensino
Ultrassom
Tecnologia de Baixo Custo
CYCLAMATESABDOMINAL INJURIES
Curva de Aprendizado
Limites: Humanos
Tipo de Publ: Ensaio Clínico Controlado Aleatório
Responsável: CO354 - Sociedad Colombiana de Gastroenterología


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Id: biblio-1251522
Autor: Prieto-O, Jhon E; Garzón-Orjuela, Nathaly; Sánchez-P, Santiago; Prieto-O, Robin; Ochoa-D, Andrés; Soto-O, Pedro H; Eslava-Schmalbach, Javier.
Título: Elastografía en tiempo real (Supersonic), experiencia de un centro en Bogotá / Real-time elastography (Supersonic), experience of a medical center in Bogotá
Fonte: Rev. colomb. gastroenterol;36(1):58-64, ene.-mar. 2021. tab, graf.
Idioma: es.
Resumo: Resumen Introducción: la elastografía en tiempo real, 2D-SWE (Supersonic), es una prueba no invasiva que se utiliza para determinar la elasticidad del hígado y, de esa forma, calcular el grado de fibrosis hepática. En Colombia, la prueba se introdujo en 2016 y no existen hasta el momento estudios del comportamiento de la prueba en todos los pacientes hepáticos, solo se han publicado en pacientes sanos y cirróticos. Objetivo: analizar la experiencia de la aplicación de la elastografía en tiempo real, en sujetos atendidos en el centro de enfermedades hepáticas y digestivas de Bogotá, Colombia. Materiales y métodos: estudio descriptivo retrospectivo de una cohorte de sujetos atendidos entre marzo de 2016 y julio de 2017. Se realizó una historia clínica completa y una prueba de elastografía en tiempo real (Supersonic). Resultados: se incluyeron 654 sujetos, con una mediana de edad de 55 años (rango intercuartílico [RIC]: 45-64). La mediana de valores de fibrosis expresada en kilopascales (kPs) fue de 8,3, con un promedio de 5 mediciones. Se observó una diferencia significativa en el grado de fibrosis entre los grupos de edad y en relación con el diagnóstico final, donde se evidenció una mayor fibrosis en el grupo de enfermedades colestásicas (autoinmune, colangitis biliar primaria [CBP] y superposición autoinmune-CBP). La tasa global de fracaso fue menor al 1%. Conclusiones: es la primera descripción del comportamiento de la prueba a nivel nacional. Los valores de rigidez hepática observados en los diferentes estadios demuestran la utilidad de la prueba para la determinación de la fibrosis hepática en pacientes con diferentes patologías.

Abstract Introduction: Real-time two-dimensional shear wave elastography (2D-SWE) (Supersonic Imagine SA), is a non-invasive test used to determine liver elasticity and calculate the degree of liver fibrosis. In Colombia, this test was introduced in 2016 and, to date, no study has tested its behavior in all liver patients, only in healthy and cirrhotic patients. Objective: To analyze the experience of real-time elastography implementation in subjects treated at the Centro de Enfermedades Hepáticas y Digestivas in Bogotá, Colombia. Materials and methods: This is a retrospective descriptive study of a cohort of subjects treated between March 2016 and July 2017. A complete medical report and a real-time elastography (Supersonic) test were performed. Results: 654 subjects were included, with a median age of 55 years (interquartile range [IQR]: 45-64). The median fibrosis values expressed in kilopascals (kPs) were 8.3, with an average of 5 measurements. There was a significant difference in the degree of fibrosis between the age groups and in relation to the final diagnosis, where there was a greater fibrosis in the cholestatic disease group (autoimmune, primary biliary cholangitis [PBC], and overlap). The overall failure rate was less than 1%. Conclusions: This is the first description of this test behavior in the country. Hepatic stiffness values observed in the different stages demonstrate the usefulness of the test to establish the degree of liver fibrosis in patients with multiple diseases.
Descritores: Fibrose
Técnicas de Imagem por Elasticidade
Fígado
-Medidas, Métodos e Teorias
Registros Médicos
Elasticidade
Relatório de Pesquisa
Métodos
Limites: Humanos
Masculino
Feminino
Adolescente
Adulto
Pessoa de Meia-Idade
Idoso
Idoso de 80 Anos ou mais
Tipo de Publ: Estudo Observacional
Responsável: CO354 - Sociedad Colombiana de Gastroenterología


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Id: biblio-1133375
Autor: Xie, Xinxin; Yu, Yongqiang.
Título: Effect of the location and size of thyroid nodules on the diagnostic performance of ultrasound elastography: A retrospective analysis
Fonte: Clinics;75:e1720, 2020. tab, graf.
Idioma: en.
Resumo: OBJECTIVES: Ultrasound-guided fine-needle aspiration biopsies are recommended for the detection of suspicious thyroid nodules. However, the best approach regarding suspicious ultrasound features for thyroid nodules is still unclear. This study aimed to evaluate the effect of location and size of thyroid nodules on the diagnostic performance of strain ultrasound elastography. In addition, this study evaluated whether ultrasound elastography predicts malignancy in thyroid nodules. METHODS: Data regarding the size, depth, and distance from the carotid artery of nodules, the elasticity contrast index, and the nature of nodules were analyzed. RESULTS: There was no significant difference in the depth (p=0.092) and the distance from the carotid artery (p=0.061) between benign and suspicious nodules. Suspicious nodules were smaller than benign nodules (p<0.0001, q=23.84) and had a higher elasticity contrast index (p<0.0001, q=21.05). The depth of nodules and the size of the nodule were not associated with the correct value of the elasticity contrast index (p>0.05 for both). The diagnostic performance of ultrasound elastography was not affected by the distance of the nodules from the carotid artery if they were located ≥15 mm from the carotid artery (p=0.5960). However, if the suspicious nodules were located <15 mm from the carotid artery, the diagnostic accuracy was hampered (p=0.006). CONCLUSIONS: The strain ultrasound elastography should be carefully evaluated when small thyroid nodules are located near the carotid artery.
Descritores: Nódulo da Glândula Tireoide/diagnóstico por imagem
Técnicas de Imagem por Elasticidade/métodos
-Estudos Retrospectivos
Sensibilidade e Especificidade
Diagnóstico Diferencial
Limites: Humanos
Masculino
Feminino
Adulto
Pessoa de Meia-Idade
Idoso
Responsável: BR1.1 - BIREME


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Id: biblio-1133437
Autor: Sun, Yong-Mei; Dong, Hai; Du, Zong-Yan; Yang, Zong-Li; Zhao, Cheng; Chong, Jing; Li, Ping.
Título: The effect of regions-of-interest and elasticity modulus selection on differentiating benign and malignant cervical lymph nodes with shear wave elastography
Fonte: Clinics;75:e1691, 2020. tab, graf.
Idioma: en.
Resumo: OBJECTIVE: Imaging diagnosis of cervical lymphadenopathy has conventionally used ultrasonography. Shear wave elastography (SWE) is a recent ultrasound technological advancement that has shown promise in the important medical problem of differentiating between benign and malignant cervical lymph nodes based on quantitative measurements of elasticity modulus. However, widely varying elasticity modulus metrics and regions-of-interest (ROIs) were used in existing studies, leading to inconsistent findings and results that are hard to compare with each other. METHODS: Using a large dataset of 264 cervical lymph nodes from 200 patients, we designed a study comparing three elasticity modulus metrics (Emax, Emean, and standard deviation-SD) with three different ROIs to evaluate the effect of such selections. The metric values were compared between the benign and malignant node groups. The different ROI and metric selections were also compared through receiver operating characteristics curve analysis. RESULTS: For all ROIs, all metric values were significantly different between the two groups, indicting their diagnostic potential. This was confirmed by the ≥0.80 area under the curve (AUC) values achieved with these metrics. Different ROIs had no effect on Emax, whereas all ROIs achieved high performance at 0.88 AUC. For Emean, the smallest ROI focusing on the area of the highest elasticity achieved the best diagnostic performance. In contrast, the larger ROIs achieved higher performances for SD. CONCLUSIONS: This study illustrated the effect of elasticity modulus and ROI selection on the diagnostic performance of SWE on cervical lymphadenopathy. These new findings help guide relevant future studies and clinical applications of this important quantitative imaging modality.
Descritores: Neoplasias da Mama
Técnicas de Imagem por Elasticidade
-Reprodutibilidade dos Testes
Ultrassonografia
Sensibilidade e Especificidade
Diagnóstico Diferencial
Módulo de Elasticidade
Linfonodos/diagnóstico por imagem
Pescoço/diagnóstico por imagem
Limites: Humanos
Responsável: BR1.1 - BIREME


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Id: biblio-1133448
Autor: Yang, Xianghua; Zhai, Dongcai; Zhang, Tao; Zhang, Shenjie.
Título: Use of strain ultrasound elastography versus fine-needle aspiration cytology for the differential diagnosis of thyroid nodules: a retrospective analysis
Fonte: Clinics;75:e1594, 2020. tab, graf.
Idioma: en.
Resumo: OBJECTIVE: Fine-needle aspiration cytology is the risk stratification tool for thyroid nodules, and ultrasound elastography is not routinely used for the differential diagnosis of thyroid cancer. The current study aimed to compare the diagnostic parameters of ultrasound elastography and fine-needle aspiration cytology, using surgical pathology as the reference standard. METHODS: In total, 205 patients with abnormal thyroid function test results underwent ultrasound-guided fine-needle aspiration cytology on the basis of the American College of Radiology Thyroid Imaging-Reporting and Data System classification and strain ultrasound elastography according to the ASTERIA criteria. Histopathological examination of the surgical specimens was performed according to the 2017 World Health Organization classification system. Moreover, a beneficial score analysis for each modality was conducted. RESULTS: Of 265 nodules, 212 measured ≥1 cm. The strain index value increased from benign to malignant nodules, and the presence of autoimmune thyroid diseases did not affect the results (p>0.05 for all categories). The sensitivities of histopathological examination, ultrasound elastography, and fine-needle aspiration cytology for detection of nodules measuring ≥1 cm were 1, 1, and 0.97, respectively. The working area for detecting nodule(s) in a single image was similar between strain ultrasound elastography and fine-needle aspiration cytology for highly and moderately suspicious nodules. However, for mildly suspicious, unsuspicious, and benign nodules, the working area for detecting nodule(s) in a single image was higher in strain ultrasound elastography than in fine-needle aspiration cytology. CONCLUSION: Strain ultrasound elastography for highly and moderately suspicious nodules facilitated the detection of mildly suspicious, unsuspicious, and benign nodules.
Descritores: Glândula Tireoide/diagnóstico por imagem
Neoplasias da Glândula Tireoide/diagnóstico
Nódulo da Glândula Tireoide/diagnóstico por imagem
Biópsia por Agulha Fina/métodos
Técnicas de Imagem por Elasticidade/métodos
-Glândula Tireoide/patologia
Neoplasias da Glândula Tireoide/patologia
Tireotropina/sangue
Valor Preditivo dos Testes
Estudos Retrospectivos
Sensibilidade e Especificidade
Nódulo da Glândula Tireoide/patologia
Diagnóstico Diferencial
Limites: Humanos
Masculino
Feminino
Adulto
Pessoa de Meia-Idade
Tipo de Publ: Estudo Comparativo
Responsável: BR1.1 - BIREME


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Id: biblio-1133460
Autor: Wei, Linglin; Ye, Zhen; Bao, Zhongtao; Xu, Xiang; Lin, Xiaoyu; Chen, Ling.
Título: Application of acoustic radiation force impulse elastography combined with serum markers in Child-Pugh grading
Fonte: Clinics;75:e1670, 2020. tab, graf.
Idioma: en.
Projeto: Fujian Medical University.
Resumo: OBJECTIVES: Acoustic radiation force impulse (ARFI) elastography, the aspartate aminotransferase-to-alanine aminotransferase ratio (AAR), aspartate aminotransferase-to-platelet ratio index (APRI), and the fibrosis-4 (FIB-4) index are widely used to assess liver fibrosis. However, efficacies of these methods in the evaluation of hepatic functional reserve remain unclear. In this study, we investigated the relationship between ARFI elastography combined with either AAR, APRI, or FIB-4 index and Child-Pugh (CP) class for the evaluation of hepatic functional reserve in patients with chronic hepatitis B (CHB)-related cirrhosis. METHODS: The shear wave velocities of 104 patients with clinically confirmed CHB-related cirrhosis were determined using the ARFI; and clinical serum markers (e.g. ALT, AST, PLT) were used to calculate the AAR, APRI, and FIB-4 index. Cirrhosis patients were scored according to their CP class. The ARFI, AAR, APRI, and FIB-4 index were compared with the CP class. The efficacy of each indicator in diagnosis was analyzed using the receiver operating characteristic (ROC) curve and the ARFI combined with either the AAR, APRI, or FIB-4 index, which is used to predict decompensated cirrhosis. RESULTS: No significant differences were observed in gender and age among CP classes A, B, and C patients (p>0.05). The ARFI values and the AAR, APRI, and FIB-4 index of patients with CP classes A, B, and C were significantly different (p<0.05). With an increasing CP class, the ARFI, AAR, APRI, and FIB-4 values increased. The correlation between the ARFI and the CP class was stronger than that between the AAR, APRI, and FIB-4 index and the CP class. The area under the ROC curve for the diagnosis of decompensated cirrhosis using the ARFI was 0.841, which was higher than that for the AAR, APRI, and FIB-4 index. According to the area under the curve results, no significant differences were found when the ARFI was combined with either the AAR, APRI, or FIB-4 index and when the ARFI alone was used. CONCLUSIONS: The ARFI value has a strong correlation with the CP class. Therefore, ARFI elastography complements CP class in the assessment of the hepatic functional reserve in patients with CHB-related cirrhosis.
Descritores: Aspartato Aminotransferases/sangue
Acústica
Alanina Transaminase/sangue
Técnicas de Imagem por Elasticidade/métodos
Cirrose Hepática/patologia
-Biópsia
Índice de Gravidade de Doença
Biomarcadores/sangue
Valor Preditivo dos Testes
Curva ROC
Sensibilidade e Especificidade
Fígado/patologia
Cirrose Hepática/sangue
Cirrose Hepática/diagnóstico por imagem
Limites: Humanos
Masculino
Feminino
Criança
Responsável: BR1.1 - BIREME



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