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1.
Pediatr Radiol ; 53(8): 1629-1639, 2023 07.
Article in English | MEDLINE | ID: mdl-36881143

ABSTRACT

BACKGROUND: Obesity and fatty-liver disease are increasingly common in children. Hepatic steatosis is becoming the most common cause of chronic liver disease during childhood. There is a need for noninvasive imaging methods that are easily accessible, safe and do not require sedation in the diagnosis and follow-up of the disease. OBJECTIVE: In this study, the diagnostic role of ultrasound attenuation imaging (ATI) in the detection and staging of fatty liver in the pediatric age group was investigated using the magnetic resonance imaging (MRI)-proton density fat fraction as the reference. MATERIALS AND METHODS: A total of 140 children with both ATI and MRI constituted the study group. Fatty liver was classified as mild (S1, defined as ≥ 5% steatosis), moderate (S2, defined as ≥ 10% steatosis), or severe (S3, defined as ≥ 20% steatosis) according to MRI-proton density fat fraction values. MRI studies were performed on the same 1.5-tesla (T) MR device without sedation and contrast agent. Ultrasound examinations were performed independently by two radiology residents blinded to the MRI data. RESULTS: While no steatosis was detected in half of the cases, S1 steatosis was found in 31 patients (22.1%), S2 in 29 patients (20.7%) and S3 in 10 patients (7.1%). A strong correlation was found between attenuation coefficient and MRI-proton density fat fraction values (r = 0.88, 95% CI 0.84-0.92; P < 0.001). The area under the receiver operating characteristic curve values of ATI were calculated as 0.944 for S > 0, 0.976 for S > 1 and 0.970 for S > 2, based on 0.65, 0.74 and 0.91 dB/cm/MHz cut-off values, respectively. The intraclass correlation coefficient values for the inter-observer agreement and test-retest reproducibility were calculated as 0.90 and 0.91, respectively. CONCLUSION: Ultrasound attenuation imaging is a promising noninvasive method for the quantitative evaluation of fatty liver disease.


Subject(s)
Elasticity Imaging Techniques , Non-alcoholic Fatty Liver Disease , Humans , Child , Prospective Studies , Liver/diagnostic imaging , Protons , Reproducibility of Results , Biopsy , Magnetic Resonance Imaging/methods , ROC Curve , Elasticity Imaging Techniques/methods
3.
Acta Ortop Bras ; 30(spe1): e247870, 2022.
Article in English | MEDLINE | ID: mdl-35864831

ABSTRACT

Objective: This study aimed to investigate whether isokinetic strength decrease significantly after using volar plating for distal radius fractures and evaluate the pronator quadratus muscle regarding atrophy. Methods: This study took place between 2011 and 2015 and included 18 distal radius fracture patients (group 1) who were treated via volar plating at least one year prior and 14 healthy controls (group 2). All participants were tested isokinetically. Grip strength, radiological evaluation, wrist range of motion, disabilities of the arm, shoulder, and hand and visual analog scale scores were assessed for clinical and functional outcomes. Ultrasonography evaluated the pronator quadratus muscle thicknesses. Results: The peak supination torque (PT) and supination work per repetition (WPT) strength values significantly decreased (p:0.039, p:0.025, respectively). Although we determined an 11% pronation PT deficit and a 19% pronation WPT deficit, neither were significant. In group 1, the pronator quadratus muscle thickness decreased 5.9% ± 13.3 in the radial area and 9.7% ± 10.5 in the interosseous area according with ultrasonography; these results were not statistically significant compared to group 2. All clinical and functional outcomes were not statistically significant between the groups. Conclusion: The use of volar plating after distal radius fractures is a safe method regarding isokinetic strength and pronator quadratus muscle atrophy. Level of evidence III; Retrospective case-control study .


Objetivo: Este estudo teve como objetivo investigar se as forças isocinéticas diminuem significativamente após o uso de placa volar para tratamento de fraturas do rádio distal e avaliar o músculo pronador quadrado quanto à atrofia. Métodos: Este estudo realizado entre 2011 e 2015 incluiu 18 pacientes com fratura do rádio distal (grupo 1) que tenham sido tratadas com placa volar pelo menos um ano antes e 14 pessoas saudáveis como controle (grupo 2). Todos os participantes foram testados isocineticamente. Força de preensão, avaliação radiológica, amplitude de movimento do punho, deficiências do braço, ombro e mão e escores da escala visual analógica foram avaliados clinica e funcionalmente. A ultrassonografia avaliou a espessura do músculo pronador quadrado. Resultados: A força máxima do torque de supinação (TM) e do trabalho por repetição (ER) de supinação diminuíram significativamente (p: 0,039, p: 0,025, respectivamente). Embora tenhamos determinado um déficit de TM de pronação de 11% e um déficit de ER de pronação de 19%, nenhum dos dois foi significativo. No grupo 1, a espessura do músculo pronador quadrado diminuiu 5,9% ± 13,3 na área radial e 9,7% ± 10,5 na área interóssea, segundo ultrassonografia; estes resultados não foram estatisticamente significativos em comparação com o grupo 2. Nenhum resultados clínico ou funcional foi estatisticamente significativo entre os grupos. Conclusão: O uso de placa volar após fraturas do rádio distal é um método seguro em relação à força isocinética e atrofia do músculo pronador quadrado. Nível de evidência III; estudo retrospectivo de caso-controle .

4.
Acta ortop. bras ; 30(spe1): e247870, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1383435

ABSTRACT

ABSTRACT Objective: This study aimed to investigate whether isokinetic strength decrease significantly after using volar plating for distal radius fractures and evaluate the pronator quadratus muscle regarding atrophy. Methods: This study took place between 2011 and 2015 and included 18 distal radius fracture patients (group 1) who were treated via volar plating at least one year prior and 14 healthy controls (group 2). All participants were tested isokinetically. Grip strength, radiological evaluation, wrist range of motion, disabilities of the arm, shoulder, and hand and visual analog scale scores were assessed for clinical and functional outcomes. Ultrasonography evaluated the pronator quadratus muscle thicknesses. Results: The peak supination torque (PT) and supination work per repetition (WPT) strength values significantly decreased (p:0.039, p:0.025, respectively). Although we determined an 11% pronation PT deficit and a 19% pronation WPT deficit, neither were significant. In group 1, the pronator quadratus muscle thickness decreased 5.9% ± 13.3 in the radial area and 9.7% ± 10.5 in the interosseous area according with ultrasonography; these results were not statistically significant compared to group 2. All clinical and functional outcomes were not statistically significant between the groups. Conclusion: The use of volar plating after distal radius fractures is a safe method regarding isokinetic strength and pronator quadratus muscle atrophy. Level of evidence III; Retrospective case-control study .


RESUMO Objetivo: Este estudo teve como objetivo investigar se as forças isocinéticas diminuem significativamente após o uso de placa volar para tratamento de fraturas do rádio distal e avaliar o músculo pronador quadrado quanto à atrofia. Métodos: Este estudo realizado entre 2011 e 2015 incluiu 18 pacientes com fratura do rádio distal (grupo 1) que tenham sido tratadas com placa volar pelo menos um ano antes e 14 pessoas saudáveis como controle (grupo 2). Todos os participantes foram testados isocineticamente. Força de preensão, avaliação radiológica, amplitude de movimento do punho, deficiências do braço, ombro e mão e escores da escala visual analógica foram avaliados clinica e funcionalmente. A ultrassonografia avaliou a espessura do músculo pronador quadrado. Resultados: A força máxima do torque de supinação (TM) e do trabalho por repetição (ER) de supinação diminuíram significativamente (p: 0,039, p: 0,025, respectivamente). Embora tenhamos determinado um déficit de TM de pronação de 11% e um déficit de ER de pronação de 19%, nenhum dos dois foi significativo. No grupo 1, a espessura do músculo pronador quadrado diminuiu 5,9% ± 13,3 na área radial e 9,7% ± 10,5 na área interóssea, segundo ultrassonografia; estes resultados não foram estatisticamente significativos em comparação com o grupo 2. Nenhum resultados clínico ou funcional foi estatisticamente significativo entre os grupos. Conclusão: O uso de placa volar após fraturas do rádio distal é um método seguro em relação à força isocinética e atrofia do músculo pronador quadrado. Nível de evidência III; estudo retrospectivo de caso-controle .

5.
Ultrasound Q ; 33(2): 174-178, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28538449

ABSTRACT

Juvenile papillomatosis (JP) is an infrequently seen benign proliferative lesion in women younger than 30 years. Herein, we present different clinical manifestations of histopathologically proven JP of the breast, in addition to magnetic resonance and sonographic imaging features of these cases. Patient 1 exhibited nipple discharge and papillary carcinoma accompanied after the operation. Patient 2 presented with a giant mass with cystic and numerous solid nodular components that filled the entire right breast. Patient 3 exhibited cystic areas in a well-circumscribed hypoechoic solid mass besides ahypoechoic mass with indistinct borders, which was evaluated as multifocal JP.


Subject(s)
Breast Neoplasms/diagnostic imaging , Magnetic Resonance Imaging/methods , Neoplasms, Multiple Primary/diagnostic imaging , Papilloma/diagnostic imaging , Ultrasonography/methods , Adolescent , Adult , Breast Neoplasms/pathology , Child , Diagnosis, Differential , Female , Humans , Neoplasms, Multiple Primary/pathology , Papilloma/pathology , Rare Diseases/diagnostic imaging
6.
J Surg Case Rep ; 2016(8)2016 Aug 17.
Article in English | MEDLINE | ID: mdl-27534888

ABSTRACT

Lymphangioma is a rare benign tumor that occurs due to abnormalities occurring during lymphatic development. It is usually seen in children and young adults. The incidence of lymphangiomas in the gastrointestinal tract is very low. Here we describe the case of 43-year-old woman with lymphangioma of the ileum with infiltrative polyposis-like appearing lesions diagnosed by capsule endoscopy and treated with segmental resection of affected intestinal part with laparotomy. Lesions involving mesentery and ileum were confirmed by pathology. After surgery, the patient's symptoms improved. No further therapy was needed because of the benign manner of the lesions. Patient had no symptoms in 10 months follow-up after surgery.

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