The computed tomographic (CT) attenuation values and magnetic resonance (MR) signal intensities of simulated acute subarachnoid hemorrhage were compared systematically. In vitro MR and CT measurements (T1, T2, and Hounsfield units) were made of mixtures of normal human cerebrospinal fluid (CSF) and normal heparinized blood, ranging from 0% to 100% by volume. The mixtures were measured in a plex...

The aim of this study was to measure the bone mineral density specific regions maxilla, mandible, and first cervical vertebra using Hounsfield unit trabecular microstructure pattern analysis compare two methods. In study, cone-beam computed tomography (CBCT) images were obtained from 58 patients. Trabecular thickness, number, separation, volume fraction measured in 484 for parameters grayscale ...

Several studies showed that sarcopenia is associated with an increase of postoperative complications, worse results in patients pancreatic cancer. According to European Working Group on Sarcopenia, it a "progressive and generalized skeletal muscle loss" characterized by both loss mass strength (Cruz-Jentoft AJ et al., 2019). Aim our work was evaluate the effect occurrence complications after re...

INTRODUCTION The objective of this study was to determine the Hounsfield unit (HU) changes in the alveolar bone and root surfaces during controlled canine retractions. METHODS Eighteen maxillary canine retraction patients were selected for this split-mouth design clinical trial. The canines in each patient were randomly assigned to receive either translation or controlled tipping treatment. P...

Background and aims. Cone-beam computed tomography (CBCT) is an imaging system which has many advantages over computed tomography (CT). In CT scan, Hounsfield Unit (HU) is proportional to the degree of x-ray attenuation by the tissue. In CBCT, the degree of x-ray attenuation is shown by gray scale (voxel value). The aim of the present study was to investigate the relationship between gray scale...