We propose an intelligent computational technique for the image segmentation of a type IV brain tumor, identified as multiform glioblastoma (MGB), which is present in multi-layer computed tomography images. This technique consists of 3 stages developed in the three-dimensional domain. They are: pre-processing, segmentation and validation. During the validation stage, the Dice coefficient (Dc) is considered in order to compare the segmentations of the MGB, obtained automatically, with the segmentations of the MGB generated manually, by a ...

Objetivos. El objetivo de este estudio es comparar la capacidad predictiva de diferentes índices antropométricos en la determinación de la agregación de múltiples factores de riesgo (AMFR) en la población adulta de la ciudad de Cuenca, Ecuador. Materiales y métodos. Se realizó un estudio descriptivo transversal con un muestreo aleatorio multietápico en 318 sujetos adultos a quienes se les realizó una evaluación clínica, antropométrica y de laboratorio; siendo la circunferencia abdominal, índice de masa corporal (IMC) e índice cintura altura ...

Introduction: The analysis of new cardiovascular risk factors is under an extensive debate in the cardiology and metabolic research fields. Objective: To determine the main factors that contribute to the classification of individuals with higher coronary risk in the adult population from Maracaibo, Venezuela. Methods: A descriptive, cross-sectional study with multistage random sampling in 1379 individuals belonging to the Maracaibo City Metabolic Syndrome Prevalence Study (MMSPS) was performed. They were classified according to the coronary ...

The objective of this research was to analyze the effects of an intervention program through neurofeedback, on the cognitive performance in children with inattention indicators. A quasi-experimental pretest-posttest study was used under a positivist epistemology, with a comparative analysis for each evaluated cognitive process. A sample of 29 cases was intentionally selected from a group of children and young adolescents with low performance indicators from a Therapeutic Center from Cucuta-Colombia. The neurofeedback program was developed ...

Alteraciones en el desarrollo de la atención y la organización conductual pueden configurar cuadros clínicos como el trastorno déficit de atención (TDA) que puede estar acompañado o no de hiperactividad (TDAH), este último parece tener una relación directa con otros diagnósticos de tipo endocrino como la obesidad. El objetivo del estudio es analizar la relación que existe entre el TDAH y la obesidad. Es por ello que se realiza una revisión sistemática de estudios científicos revelando relaciones y diferencias entre ambos trastornos desde ...

Data mining consists of using large database analysis to detect patterns, relationships and models in order to describe (or even predict) the appearance of a future event; to accomplish this, it uses classification methods, rules of association, regression patterns, link and cluster analyses. Recently this approach has been used to propose a new diabetes mellitus classification, using information analysis techniques through which the selection bias minimally influences categorization, this new focus that includes data mining previously implemented ...

Propósito: En décadas recientes, ha aumentado en la población infantil la prevalencia de enfermedades como obesidad y dislipidemias, de manera atribuible a prácticas propias de la sociedad occidentalizada. Esto incluye sobreingesta calórica, incluso en el desayuno, una particularmente importante para ésta demografía. Por lo tanto, el objetivo de este estudio fue analizar efecto del consumo de alimentos preparados en el hogar (APH) o alimentos adquiridos en la institución educativa (AIE) y la ingesta nutricional diaria en el perfil lipídico ...

Adipose tissue accumulation in specific body compartments has been associated with diabetes, hypertension and dyslipidemia. Perirenal fat (PRF) may lead to have direct lipotoxic effects on renal function and intrarenal hydrostatic pressure. This study was undertaken to explore the association of PRF with cardiovascular risk factors and different stages of chronic kidney disease (CKD). We studied 103 patients with CKD of different stages (1 to 5). PRF was measured by B-mode renal ultrasonography in the distal third between the cortex and the hepatic ...

Although novel pharmacological options for the treatment of type 2 diabetes mellitus (DM2) have been observed to modulate the functionality of several key organs in glucose homeostasis, successful regulation of insulin resistance (IR), body weight management, and pharmacological treatment of obesity remain notable problems in endocrinology. Leptin may be a pivotal player in this scenario, as an adipokine which centrally regulates appetite and energy balance. In obesity, excessive caloric intake promotes a low-grade inflammatory response, which ...

Background: Insulin resistance (IR) evaluation is a fundamental goal in clinical and epidemiological research. However, the most widely used methods are difficult to apply to populations with low incomes. The triglyceride-glucose index (TGI) emerges as an alternative to use in daily clinical practice. Therefore the objective of this study was to determine an optimal cutoff point for the TGI in an adult population from Maracaibo, Venezuela. Methods: This is a sub-study of Maracaibo City Metabolic Syndrome Prevalence Study, a descriptive, ...