搜索结果: 1-15 共查到“医学 contrast”相关记录25条 . 查询时间(0.078 秒)
Metal-free MRI contrast agent could be safer for some patients
Metal-free MRI contrast agent safer for some patients
2017/7/24
To enhance the visibility of organs as they are scanned with magnetic resonance imaging (MRI), patients are usually injected with a compound known as a contrast agent before going into the scanner. Th...
Incidence of Contrast-Induced Nephropathy after Contrast-Enhanced Computed Tomography in the Outpatient Setting
contrast-induced nephropathy outpatient CECT
2014/11/28
Background and objectives: No prospective study has reported the incidence of contrast-induced nephropathy (CIN) or the associated morbidity and mortality after contrast-enhanced computed tomography (...
1-year mortality following contrast-induced nephropathy
Acute Kidney Injury Mortality Contrast Media Computed Tomography Outpatients
2014/11/28
Objective: The aim of this study was to determine the 1-year mortality risk subsequent to Contrast-Induced Nephropathy (CIN) following CECT imaging, relative to other well-recognized predictors of mor...
Colour contrast and regulation of the long jump approach run
PERCEPTION VISUAL REGULATION TAKE-OFF BOARD
2013/10/1
Research has shown that visual perception of the take-off board and the subsequent regulation of the approach run occur 4-5 strides prior to take-off. Contrast in visual perception is determined by th...
On the relationship between encapsulated ultrasound contrast agent and pressure
relationship encapsulated ultrasound contrast agent pressure
2010/1/6
Noninvasive measurement of pressure within the heart cavities and other internal organs
(e.g., kidney, liver) has significant clinical value but currently is not feasible. Noninvasive
pressure estim...
Online Tracking of Migrating and Proliferating Cells in Phase-Contrast Microscopy
Online Tracking Phase-Contrast Microscopy Proliferating Cells
2009/12/22
Automated visual-tracking of cell population in vitro using
phase-contrast time-lapse microscopy is vital for the
quantitative and systematic study of cell behaviors, including
spatiotemporal quant...
Assessment of Myocardial Viability with Contrast-enhanced Magnetic Resonance Imaging and Technetium Scintigraphy
Magnetic resonance imaging Single photon emission computed tomography Myocardial viability
2015/9/18
Background: In patients with coronary artery disease (CAD), assessment of viable myocardium has important prognostic implications. The aim of this study was to compare contrast-enhanced magnetic reson...
Impacts of Filtration on Contrast-Detail Detectability of an X-ray Imaging System
Contrast-Detail Detectability X-ray Imaging System
2009/9/8
The purpose of this study is to investigate the impacts of added filtration on the contrast-detail detectability of a digital X-ray imaging system for small animal studies. A digital X-ray imaging sys...
Virtual Contrast for Coronary Vessels Based on Level Set Generated Subvoxel Accurate Centerlines
Coronary Vessels Centerlines
2009/9/8
We present a tool for tracking coronary vessels in MRI scans of the human heart to aid in the screening of heart diseases. The vessels are identified through a single click inside each vessel present ...
A Parallel Reconstruction Scheme in Fluorescence Tomography Based on Contrast of Independent Inversed Absorption Properties
Fluorescence Tomography Independent Inversed Absorption Properties
2009/9/8
Based on an independent forward model in fluorescent tomography, a parallel reconstructed scheme for inhomogeneous mediums with unknown absorption property is proposed in this paper. The method consid...
X-Ray Phase-Contrast Imaging with Three 2D Gratings
X-Ray Phase-Contrast Imaging Three 2D Gratings
2009/9/4
X-ray imaging is of paramount importance for clinical and preclinical imaging but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same si...
Effect of Edge-Preserving Adaptive Image Filter on Low-Contrast Detectability in CT Systems: Application of ROC Analysis
CT Systems ROC Analysis
2009/9/4
Objective. For the multislice CT (MSCT) systems with a larger number of detector rows, it is essential to employ dose-reduction techniques. As reported in previous studies, edge-preserving adaptive im...
Patients'Knowledge of the Intravenous Contrast Materials and Their Risks:A Cross-sectional Survey
Contrast media informed consent information management
2009/6/23
The aim of this study was to determine the level of knowledge about the intravenous contrast materials (IVCMs) and their risks in patients in an Anatolian city. The study included 156 outpatients who ...
Lone Atrial Septal Aneurysm With Spontaneous Echo Contrast: An Increased Stroke Risk
Stroke atrial septal aneurysm embolism
2009/6/16
Aims: The etiology of stroke in young adults may be challenging. After preliminary investigations, a cause is not established in about one-third of patients. Cardiovascular embolism has been recognize...
Hyperbaric oxygen therapy is used in ophthalmology in ischemic pathologies of the anterior and posterior segments. Our experiment was done on a healthy group of volunteers aged between 10 and 50 yr. W...