Bioabsorbable bone fixation plates for X‐ray imaging diagnosis by a radiopaque layer of barium sulfate and poly(lactic‐ co ‐glycolic acid)

2014 ◽  
Vol 103 (3) ◽  
pp. 596-607 ◽  
Author(s):  
Sung Yoon Choi ◽  
Woojune Hur ◽  
Byeung Kyu Kim ◽  
Catherine Shasteen ◽  
Myung Hun Kim ◽  
...  
Keyword(s):  
Barium Sulfate ◽  
Glycolic Acid ◽  
Imaging Diagnosis ◽  
X Ray ◽  
Bone Fixation ◽  
X Ray Imaging

X-ray imaging diagnosis based on toroidally bent crystal

2011 ◽  
Vol 23 (10) ◽  
pp. 2659-2662
Author(s):  
施军 Shi Jun ◽  
肖沙里 Xiao Shali ◽  
王洪建 Wang Hongjian ◽  
钱家渝 Qian Jiayu ◽  
刘慎业 Liu Shenye
Keyword(s):  
Imaging Diagnosis ◽  
X Ray ◽  
Bent Crystal ◽  
X Ray Imaging

CMOS detector systems for soft X-ray imaging diagnosis

2014 ◽  
Vol 26 (12) ◽  
pp. 122003
Author(s):  
韦敏习 Wei Minxi ◽  
侯立飞 Hou Lifei ◽  
杨国洪 Yang Guohong ◽  
刘慎业 Liu Shenye
Keyword(s):  
Imaging Diagnosis ◽  
X Ray ◽  
X Ray Imaging

scholarly journals A Retrospective Study of the Factors Associated With Deterioration Severity of COVID-19 Illness at a Tertiary Hospital in Saudi Arabia

2021 ◽  
Author(s):  
Mohammad AlJabr ◽  
Areej AlDossary ◽  
Kanan Alkanani ◽  
Turky Al Zahrani ◽  
Sofian Almulhim ◽  
...  
Keyword(s):  
Risk Factors ◽  
Chronically Ill ◽  
Tertiary Hospital ◽  
Imaging Diagnosis ◽  
Course Of Illness ◽  
X Ray ◽  
Factors Associated ◽  
X Ray Imaging ◽  
Chest X Ray ◽  
Chronically Ill Patients

Abstract Background: COVID-19 has rapidly progressed to a pandemic causing a severe burden on healthcare systems worldwide. It has proven to be a serious threat to certain populations such as elderly and chronically ill people. In this study we aim to determine risk factors contributing and affecting COVID-19 severity and deterioration during the course of illness. Methods: This is a retrospective cohort study for all hospitalized patients who were diagnosed with COVID-19 from March to July 2020.Results: A total of 639 patients were included in this study. The majority were Saudi patients (87.3%). 465 (76%) were symptomatic with abnormal x-ray imaging diagnosis (56.2%). Predetermined clinical risk factors were obesity (46.3%), hypertension (42.3%), diabetes mellitus (41.8%), dyslipidemia (39%), Ischemic heart disease (13.2%), chronic lung disease (11%), chronic kidney disease (10.3%), cancer (7.9%), congestive heart failure (6.1%), and immunocompromised patients (4.6%). It was also found that chest x-ray finding upon diagnosis, and presentation of symptoms had a significant impact on the pattern of deterioration.Conclusion: This study found that elderly and chronically ill patients are at higher risk for more severe COVID-19 infection and risk of deterioration, hospitalization, intensive care unit admission, and probably death when compared to younger and healthier patients.

Influence of barium sulfate X-ray imaging contrast material on properties of floating drug delivery tablets

2016 ◽  
Vol 95 ◽  
pp. 46-53 ◽  
Author(s):  
Péter Diós ◽  
Krisztián Szigeti ◽  
Ferenc Budán ◽  
Márta Pócsik ◽  
Dániel S. Veres ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Barium Sulfate ◽  
Contrast Material ◽  
X Ray ◽  
X Ray Imaging ◽  
Floating Drug Delivery

The Clinical Application of the LEBRA-PXR in Imaging Diagnosis

2012 ◽  
Vol 529-530 ◽  
pp. 317-320
Author(s):  
Kotaro Sekiya ◽  
Takashi Kaneda ◽  
Shintaro Mori ◽  
Masaaki Suemitsu ◽  
Yasushi Hayakawa ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Life Sciences ◽  
Important Application ◽  
Strong Interactions ◽  
Diffraction Reflection ◽  
X Rays ◽  
Imaging Diagnosis ◽  
Basic Sciences ◽  
X Ray ◽  
X Ray Imaging

In 1895, Dr. Wilhelm Conrad Röentgen discovered the electromagnetic radiation called X-rays. Since the great finding, the applications of X-ray imaging have expanded. One of most important application is medical use, such as imaging diagnosis or radiation therapy. Also, applications of X-ray are based on the strong interactions with materials including transmission, absorption, diffraction, reflection, scattering, and emission. Today, X-ray imaging is applied to more delicate medical and life sciences, as well as basic sciences, because it is needed for its brilliance, power, and coherence. [1-6]

Defects of Platelet Function Recognized by X-Ray Imaging and Scanning Electron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 610-613
Author(s):  
M.G. Baldini ◽  
S. Morinaga ◽  
D. Minasian ◽  
R. Feder ◽  
D. Sayre ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cell Biology ◽  
Imaging Technique ◽  
Human Platelets ◽  
X Rays ◽  
X Ray ◽  
X Ray Imaging ◽  
Complex Phenomena ◽  
Scanning Electron

Contact X-ray imaging is presently developing as an important imaging technique in cell biology. Our recent studies on human platelets have demonstrated that the cytoskeleton of these cells contains photondense structures which can preferentially be imaged by soft X-ray imaging. Our present research has dealt with platelet activation, i.e., the complex phenomena which precede platelet appregation and are associated with profound changes in platelet cytoskeleton. Human platelets suspended in plasma were used. Whole cell mounts were fixed and dehydrated, then exposed to a stationary source of soft X-rays as previously described. Developed replicas and respective grids were studied by scanning electron microscopy (SEM).

Designing high-resolution slow scan CCD-based TEM camera systems

1992 ◽  
Vol 50 (2) ◽  
pp. 946-947
Author(s):  
James F. Mancuso ◽  
William B. Maxwell ◽  
Russell E. Camp ◽  
Mark H. Ellisman
Keyword(s):  
Fiber Optics ◽  
Ccd Camera ◽  
High Energy ◽  
Phosphor Layer ◽  
X Ray ◽  
Light Production ◽  
Camera Systems ◽  
X Ray Imaging ◽  
Electron Image ◽  
Scintillating Fiber

The imaging requirements for 1000 line CCD camera systems include resolution, sensitivity, and field of view. In electronic camera systems these characteristics are determined primarily by the performance of the electro-optic interface. This component converts the electron image into a light image which is ultimately received by a camera sensor.Light production in the interface occurs when high energy electrons strike a phosphor or scintillator. Resolution is limited by electron scattering and absorption. For a constant resolution, more energy deposition occurs in denser phosphors (Figure 1). In this respect, high density x-ray phosphors such as Gd2O2S are better than ZnS based cathode ray tube phosphors. Scintillating fiber optics can be used instead of a discrete phosphor layer. The resolution of scintillating fiber optics that are used in x-ray imaging exceed 20 1p/mm and can be made very large. An example of a digital TEM image using a scintillating fiber optic plate is shown in Figure 2.

Ionic homeostasis and subcellular element compartmentation

1990 ◽  
Vol 48 (2) ◽  
pp. 150-151
Author(s):  
Ann LeFurgey ◽  
Peter Ingram ◽  
J.J. Blum ◽  
M.C. Carney ◽  
L.A. Hawkey ◽  
...  
Keyword(s):  
Leishmania Major ◽  
Ionic Homeostasis ◽  
X Ray ◽  
Functional Studies ◽  
Cell Compartments ◽  
X Ray Imaging ◽  
Resolution Electron ◽  
Multiple Cell ◽  
Role Of Zn

Subcellular compartments commonly identified and analyzed by high resolution electron probe x-ray microanalysis (EPXMA) include mitochondria, cytoplasm and endoplasmic or sarcoplasmic reticulum. These organelles and cell regions are of primary importance in regulation of cell ionic homeostasis. Correlative structural-functional studies, based on the static probe method of EPXMA combined with biochemical and electrophysiological techniques, have focused on the role of these organelles, for example, in maintaining cell calcium homeostasis or in control of excitation-contraction coupling. New methods of real time quantitative x-ray imaging permit simultaneous examination of multiple cell compartments, especially those areas for which both membrane transport properties and element content are less well defined, e.g. nuclei including euchromatin and heterochromatin, lysosomes, mucous granules, storage vacuoles, microvilli. Investigations currently in progress have examined the role of Zn-containing polyphosphate vacuoles in the metabolism of Leishmania major, the distribution of Na, K, S and other elements during anoxia in kidney cell nuclel and lysosomes; the content and distribution of S and Ca in mucous granules of cystic fibrosis (CF) nasal epithelia; the uptake of cationic probes by mltochondria in cultured heart ceils; and the junctional sarcoplasmic retlculum (JSR) in frog skeletal muscle.

Dynamic X-ray imaging of the penetration of boron carbide

2000 ◽  
Vol 10 (PR9) ◽  
pp. Pr9-583-Pr9-588 ◽  
Author(s):  
W. A. Gooch ◽  
M. S. Burkins ◽  
G. Hauver ◽  
P. Netherwood ◽  
R. Benck
Keyword(s):  
Boron Carbide ◽  
X Ray ◽  
X Ray Imaging
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