Introduction: The current study aims to measure the validity, reliability, and psychometric properties of the Persian translation of the Video Gaming Addiction Test (VAT). Materials and Methods: A total of 280 young men (14-20 years old) (mean ± SD age: 17.22 ± 1.8 years), including excessive gamers and normal subjects, entered the study. They answered VAT, Visual Analog Scale (VAS), and Conne...

Clustering is the process of combining a set of data in such a way that data in the same group are more similar to each other than the groups (clusters). K-Means is an algorithm for widely used in clustering techniques. But in this algorithm some of the issues are determined i.e. K-value selected by user is the main disadvantage. To overcome the drawback visual methods such as the VAT algorithm...

PURPOSE The etiology of an ischemic stroke remains undetermined in 20-35% of cases and many patients do not have any of the conventional risk factors. Increased visceral adipose tissue (VAT) is a suggested new risk factor for both carotid artery atherosclerosis (CAA) and atrial fibrillation (AF), but its role in the remaining stroke population is unknown. We assessed the amount of VAT in patien...

BACKGROUND Visceral adipose tissue (VAT) was shown to be increased in patients with chronic obstructive pulmonary disease (COPD) compared to control subjects with comparable body mass index (BMI). Our aim was to determine the relation of VAT by dual-energy x-ray absorptiometry (DEXA) in patients with COPD by disease severity, BMI, other indices of body composition and static lung volumes. MET...

Earlier cross-sectional studies found that a single magnetic resonance imaging (MRI) slice predicts total visceral and subcutaneous adipose tissue (VAT and SAT) volumes well. We sought to investigate the accuracy of trunk single slice imaging in estimating changes of total VAT and SAT volume in 123 overweight and obese subjects who were enrolled in a 24-week CB-1R inverse agonist clinical trial...

OBJECTIVE Lipodystrophy in HIV-1-infected antiretroviral-treated patients is often associated with opposite alterations in adipose tissue depots as follows: lipoatrophy of subcutaneous adipose tissue (SAT) versus lipohypertrophy of visceral adipose tissue (VAT). We determined the specific molecular alterations in VAT relative to SAT in patients. DESIGN We analyzed the expression of marker gen...

BACKGROUND The feasibility and safety of endoscopic thyroidectomy were evaluated by an approach of systematic review of published studies in the past decade. METHODS A database searching was performed on MEDLINE, Cochrane Database of Systematic Reviews, American College of Physicians Journal Club, Database of Abstracts of Reviews of Effects, Cochrane Central Register of Controlled Trials. Bot...

To improve the diagnostic usefulness of electrocardiography (ECG) in determining the severity of left ventricular hypertrophy (LVH) with body surface mapping, 87 unipolar ECGs were recorded from 57 patients with left ventricular (LV) concentric hypertrophy and 30 with LV dilatation. Body surface ECG features due to LVH were evaluated by increase of QRS voltage and delayed local activation. We m...

BACKGROUND A single axial image measured between the 4th and 5th lumbar vertebrae (L4-L5) is most frequently chosen to approximate total abdominal visceral adipose tissue (VAT) volume, but growing evidence suggests that this measurement site is not ideal. OBJECTIVE The objective was to determine the single magnetic resonance (MR) image that best approximates the total VAT volume in a biracial...

Taxes make up the bulk of any government revenue and provide a sustainable source of revenue. In recent years, the main focus of the tax reform program, in almost all countries of the world, has been on VAT. But a major problem in the effective implementation of VAT, which is a nascent tax base in countries, is the phenomenon of tax evasion. Therefore, one of the most basic steps in preventing ...