Our study confirmed that prolonged gastric emptying in patients with functional dyspepsia is related to the female sex, while the abnormalities of the meal intragastric distribution appear to occur in dyspeptic males and females. Anxiety is frequent in functional dyspepsia and seems to be related to abnormal antral retention of food in these patients.
Summary:Mesial temporal lobe epilepsy (MTLE) is frequently associated with refractory seizures and pathologic features of hippocampal sclerosis (HS). Quantitative magnetic resonance imaging (MRI) techniques can improve the detection and quantification of HS. The objective of this study was to evaluate whether MRI texture analysis can detect hippocampal abnormalities in patients with pathologically proven HS.Methods: Nineteen consecutive patients who underwent surgery for refractory unilateral MTLE and had HS diagnosed on histopathology (12 right and seven left) had their preoperative MRIs evaluated. We performed texture analysis in 3-mm coronal T 1 -IR MRIs, focusing on the hippocampal head, by using the software MAZDA. Data were compared with those of a group of 78 normal hippocampi from 39 healthy adult volunteers through multivariate analysis of variance and selection of the most significant texture parameters.Results: Overall, almost all parameters of texture could discriminate the group of hippocampi with HS and the group of contralateral hippocampi from the group of normal hippocampi, but the post hoc comparison showed no differences between HS and contralateral hippocampi.Conclusions: These results provide evidence of texture alteration in MRIs of hippocampi with HS and corroborate the hypothesis of bilaterality of hippocampal damage in patients with MTLE, but further studies are needed to investigate the lateralization power of texture analysis. Key Words: Epilepsy-MRI-Texture-Hippocampal sclerosis.Hippocampal sclerosis (HS) is the most common underlying pathology in adult patients with mesial temporal lobe epilepsy (MTLE). Neuronal loss also may extend to amygdala and parahippocampal gyrus, characterizing the typical pattern of mesial temporal sclerosis (MTS). MTS is found in most surgical specimens from operated-on patients with refractory MTLE and is associated with an excellent surgical prognosis (1-3).Magnetic resonance imaging (MRI) hallmarks of HS are reduced volume and increased T 2 internal signal of the hippocampal structure (4). These findings have prompted application of more sensitive quantitative techniques, such as hippocampal volumetry and T 2 relaxometry, for detection of subtle HS (5-7).Texture analysis of MR images is a quantitative method that can be used to detect and quantify structural abnormalities in different tissues (8,9). It makes it possible to assess the degree of gray-tone modifications and the alterations of gray-tone spatial distribution in a given anatomic region of interest. This gray-tone variation is thought to correspond to underlying functional and anatomic changes (10). In this setting, texture analysis may be sensitive to detect subtle changes in MRI and to extract more information than does visual assessment.Texture analysis has recently been performed to evaluate hippocampal formation in T 2 -weighted images acquired in a 0.28-T scan, and 6-mm axial slices (11). However, no previous studies evaluated the texture MRI features of pathologically proven HS.The purpo...
Abstract. The aim of this study was to confirm the effectiveness of early physiotherapeutic stimulation for lymphatic flow progression in patients with breast cancer undergoing axillary dissection. This was a randomized experimental study on 22 patients who underwent lymphoscintigraphy in their arms on two different occasions, firstly without stimulation and secondly after randomization into two groups: without physiotherapeutic stimulation (WOPS; n=10) and with physiotherapeutic stimulation (WPS; n=12). The lymphoscintigraphy scan was performed with 99m Tc-phytate administered into the second interdigital space of the hand, ipsilaterally to the dissected axilla, in three phases: dynamic, static, and delayed whole body imaging. Physiotherapeutic stimulation was carried out using Földi's technique. In both groups, images from the two examinations of each patient were compared. Flow progression was considered positive when, on the second examination, the radiopharmaceutical reached areas more distant from the injection site. Statistical analysis was used to evaluate frequencies, percentages and central trend measurements, and non-parametric tests were conducted. Descriptive analysis showed that the WPS and WOPS groups were similar in terms of mean age, weight, height, body mass index and number of lymph nodes removed. There were statistically significant associations between physiotherapeutic stimulation and radiopharmaceutical progression at all three phases of the study (p<0.0001). Early physiotherapeutic stimulation in breast cancer patients undergoing radical axillary dissection is effective, and can therefore be indicated as a preventive measure against lymphedema.
Although the pathophysiology behind ATC cardiotoxicity is most likely multifactorial, myocardial sympathetic activity is not associated with a reduction in LVEF 5-years after completion of chemotherapy.
For several decades, beef carcass evaluation for grading or research purposes has relied upon subjective visual scores, and manually taken measurements, but in recent times there has been a growing interest in new technologies capable of improving accuracy of estimates. Equations to predict weight and yield of beef pistol subprimal cuts were developed in this work using digital image analysis (VIA) of the 12 th rib steak. Equations to predict total pistol subprimal cuts weight (CUTS) had coefficients of determination (CD) of 0.84, or 0.87 to 0.88, when the independent variables were the VIA parameters and the half carcass weight (HC) or the total pistol weight (TP), respectively. The predicted values for the total seven subprimal cuts, as a percentage of half carcass weight (CUTS%), presented CD values ranging from 0.37 to 0.47, or 0.21 to 0.31, using HC or TP as a principal independent variable. Likewise, the equation for weight of the individual subprimal cuts had CD values ranging from 0.40 to 0.72, or 0.43 to 0.74 using HC or TP, respectively. In this research, the developed VIA procedure has demonstrated good repeatability and accuracy to estimate the total pistol subprimal weights, and some individual subprimal weights. Key words: beef industry, beef carcass, image analysis, rib eye area, fat thickness ANÁLISE DE IMAGEM DIGITAL PARA A PREVISÃO DE PESOS E RENDIMENTOS DE CORTES DE CARNE BOVINARESUMO: Por várias décadas, a avaliação de carcaça bovina em sistemas de tipificação ou em pesquisas tem dependido de escores subjetivos e medidas obtidas manualmente, mas ultimamente tem havido um crescente interesse por novas tecnologias capazes de aumentar a acurácia das estimativas. Este trabalho teve como objetivo desenvolver equações para a previsão de pesos e rendimentos de cortes bovinos, através da análise de imagem digital (VIA) de uma seção do contrafilé da 12 a costela. As equações de previsão do peso dos cortes do traseiro especial (CUTS) apresentaram coeficientes de determinação (CD) de 0,84 e de 0,87 -0,88, quando as variáveis independentes usadas eram os parâmetros VIA e o peso da meia carcaça (HC) ou o peso total do traseiro especial (TP), respectivamente. As equações de previsão do rendimento dos cortes do traseiro especial (CUTS%) representaram de 37,1 a 46,8% e de 21,3 a 30,6% da variação total, quando a principal variável independente utilizada na equação era HC ou TP, respectivamente. Nas equações de previsão dos pesos individuais dos cortes do traseiro especial o CD variou de 0,40 -0,72 e de 0,43 -0,74, usando as variáveis HC ou TP, respectivamente. O sistema de análise de imagem digital utilizado apresentou boa repetibilidade, podendo ser considerado um procedimento confiável para a estimativa do peso em cortes do traseiro especial e de alguns dos seus cortes individuais. Palavras-chave: indústria da carne, carcaça bovina, análise de imagem, área de olho de lombo, espessura de gordura
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