OBJECTIVE The aim of this study is to analyze the differences in the incidence, predicting factors, and clinical course of chronic subdural hematoma (CSDH) following surgical clipping between unruptured (UIA) and ruptured intracranial aneurysm (RIA). METHODS We conducted a retrospective analysis of 752 patients (UIA : 368 and RIA : 384) who underwent surgical clipping during 8 years. The inci...

Copyright © 2017 The Korean Society of Emergency Medicine Hounsfield units in pseudo subarachnoid hemorrhage: worth looking for Subramanian Senthilkumaran, Nanjundan Karthikeyan, Namasivayam Balamurugan, Ponniah Thirumalaikolundusubramanian Department of Emergency & Critical Care, Erode Emergency Care Hospital, Erode, Tamil Nadu, India Department of Emergency Medicine, Hamad Medical Corporation...

Background: The aim of this retrospective study is to evaluate the effects bruxism on mandibular bone using radiomorphometric indices and Hounsfield unit (HU) value digital panoramic radiography (DPR). Materials Methods: Panoramic radiographs 120 patients, 60 with bruxer without (control), were analyzed. Mental index (MI), (PMI), antegonial (AI), gonial (GI), notch depth (AND) cortical (MCI) me...

Introduction: To date, gold nanoparticles (GNPs) have been demonstrated to have great potential as contrast agent for CT imaging and therapeutics. This study was designed to evaluate any effect on X-ray attenuation that might result from using GNPs with a variety of size, surface chemistries and shapes.   Materials and Methods: Spherical GNPs and gold nanorod...

Dual energy CT is a recent upgrade to this diagnostic imaging technique. The purpose of critical narrative review lay out the clinical applications Hounsfield Units and their variation across x-ray spectrum using DECT. We explore new reconstruction methods parametric maps helpful for diagnosis prevalent pathologies such as fatty liver disease, urolithiasis, identify complications after interven...

In this paper we propose a solution to the need for fast particle transport algorithm in Online Adaptive Proton Therapy capable of cheaply, but accurately computing changes patient dose metrics as result system parameters. We obtain proton phase-space density through product numerical one-dimensional Fokker-Planck equation and analytical Fermi-Eyges equation. Moreover, corresponding adjoint was...

BACKGROUND The value of quantitative CT (QCT) to identify chronic obstructive pulmonary disease (COPD) phenotypes is increasingly appreciated. The authors hypothesised that QCT-defined emphysema and airway abnormalities relate to St George's Respiratory Questionnaire (SGRQ) and Body-Mass Index, Airflow Obstruction, Dyspnea and Exercise Capacity Index (BODE). METHODS 1200 COPDGene subjects mee...

INTRODUCTION Understanding the factors affecting success of extracorporeal shockwave lithotripsy (SWL) would improve informed decision-making on the most appropriate treatment modality for an individual patient. Although stone size and skin-to-stone distance do correlate with fragmentation efficacy, it has been shown that stone composition and architecture, as reflected by structural heterogene...

PURPOSE/AIM OF THE STUDY To assess the feasibility of krypton-enhanced ventilation CT using dual energy (DE) technique for various krypton concentrations and to determine the appropriate krypton concentration for DE ventilation CT through an animal study. MATERIALS AND METHODS Baseline DECT was first performed on seven New Zealand white rabbits. The animals were then ventilated using 20%, 30%...