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Attenuation in Medical News

Digirad Receives 510(k) for Cardius X-ACT Rapid Cardiac SPECT/VCT Imager

... imaging system that features a low-dose volume-computed tomography (VCT) attenuation correction system that significantly reduces artifacts in the images ... maps improving the overall quality of SPECT studies. The X-ACT attenuation correction system offers high accuracy, fast acquisition, low dose (5 uSv ...

Siemens Highlights Cardiology Excellence from Prevention to Follow-up at ACC 2009

... also highlight its recently FDA-cleared IQ-SPECT, Siemens newest Symbia feature that enables a comprehensive cardiac evaluation including perfusion, attenuation correction and calcium scoring in just five minutes. Also highlighted in the Siemens booth is c.cam(R), a first-of-its-kind product, featuring the ...

Brain Adjusts to Cope With Life's Upsets

... that the brains of older people deal with emotions differently, Cabeza said. "There have been reports that there's a shift in the bias, perhaps an attenuation of negative emotions and an emphasis on processing positive emotions," he said. For the new study, Cabeza and his colleagues put those theories ...

Journal CHEST: December highlighted studies

... function tests on 65 male patients with COPD. Using these tests, researchers were able to compare vertebral bone density with percentage of low attenuation area (LAA%), which reflects the severity of emphysema. Results showed that LAA% had a significant negative correlation with bone mineral density, or ...

Siemens Introduces New Dual Energy Applications to SOMATOM Definition

... "The SOMATOM Definition moves CT to an entirely new dimension of diagnostic sensitivity where contrast in the image is not merely limited to x-ray attenuation differences, but may include elements of functional and tissue characterization. This additional information may be used to improve diagnostic ...

Digirad to Introduce New Clinical Standard for Cardiac SPECT

... 1, 2008, in Chicago. Digirad's Cardius X-ACT(TM), a dedicated cardiac SPECT system, is expected to set a new clinical standard with X-ACT attenuation correction. The system uses the Cardius-3 XPO camera's solid state detectors with an x-ray tube. The revolutionary X-ACT approach exploits the ...

A 'grape' future for Alzheimer's disease research

... at the new center will provide critical information about the functional role of selected grape-derived polyphenols in the prevention and/or attenuation of cognitive deterioration of Alzheimers disease. Our goal is to learn which compounds are bioactively available to reach the brain and exert a ...

Defibrillator Use Urged to Save Children's Lives

... by providing an electrical jolt has been advocated for several years, the "software on AEDs has become more extensive and validated for children, and attenuation devices have become available to downregulate the energy delivered by AEDs to allow their use on children," the statement said. Dr. Steven E. ...

Food restriction increases dopamine receptor levels in obese rats

... levels decreased with age, but this decline was significantly blunted in food-restricted rats compared with those given free access to food. This attenuation was most apparent in the obese rats. Another main finding was that D2 receptor availability - that is, the number of receptors available for ...

Leukocyte reduction seen as significant advance in transfusion medicine

... Unit of the University of Rochester Department of Medicine. Also in the October 15 issue, the article Leukocyte Reductions Role in the attenuation of Infection Risks among Transfusion Recipients presents evidence of the benefits of leukocyte reduction beyond its established role in reducing ...

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Attenuation in Medical Technology

Expert Opinion Highlights Avigen's AV411 as Potential New Therapeutic for Neuropathic Pain and Opioid Withdrawal

... publication of this research adds to the increasing recognition of glial attenuation as a potential new paradigm shift in how we treat neuropathic pain and ... . As part of its program investigating glial attenuation as a novel approach to the treatment of neuropathic pain, ...

Bionovo to Present Recent Findings of BZL101, Its Anti-cancer Agent, at the American Association of Cancer Research

... cells unaffected. As explained by Dr. Emma Shtivelman, Director of Cancer Research at Bionovo, the ability of BZL101 to induce apoptosis is due to attenuation of mitochondrial transmembrane potential (MTP) leading to the release of reactive oxygen species, causing inhibition of glycolysis and ending ...
Attenuation in Medical Products

Symbia T, TruePoint SPECTCT system

Description:... Symbia T, a TruePoint SPECTCT system, combines a dual-detector variable angle gamma camera with a CT scanner optimized for rapid, accurate attenuation correction of the nuclear ....
Company:Siemens Medical Solutions USA, Inc.

Surgical C-Arm Table - 840

Description:... Designed for procedures where stability, access, and precise, quiet, vibration-free positioning are essential. A cantilevered low attenuation carbon fiber tabletop accommodates portable or ceiling-suspended C-Arms. The radiolucent area is free of cross members, allowing full fluoroscopic ...
Company:Biodex Medical Systems

c.cam

Description:... A relaxed patient moves less, creating fewer artifacts and consequently improving image quality. Diagnostic confidence is further enhanced with the attenuation correction option ....
Company:Siemens Medical Solutions USA, Inc.

Lead Free X-ray Apron

Description:... leaded x-ray aprons. Constructed with a wear resistant, Microfiber front and a non-slip corduroy back, the Lead Free aprons exhibit the same attenuation for X-radiation as a leaded apron. Each apron weighs approximately 50% less than conventional aprons, can withstand most disinfectant liquids and ...
Company:Clive Craig

e.cam Multiangle Cardiac

Description:... Designed to meet the high-quality and high-throughput demands of cardiology practices. The optional Profile nonuniform cardiac attenuation correction accessory features a unique fixed multiple-line array that increases the accuracy of myocardial perfusion SPECT and enhances diagnostic ...
Company:Siemens Medical Solutions USA, Inc.

Aspect100U

Features:... 30 inches long Foot switch and hand control Tabletop: 24 inches x 46 inches / Optional: 28 inches x 46 inches Locking swivel casters Low attenuation table pad SofTouch accessory package Longitudinal travel: 10 inches Trendelenburg: 15 Optional lateral roll 20 Cassette tray, loads from ...
Company:Image Diagnostics, Inc.

e.cam duet

Features:... contouring optimizes system resolution with SPECT and whole body scans Ultrathin, low-attenuation imaging pallet Profile non uniform cardiac attenuation correction option Flash 3D advanced reconstruction option for optimum image quality for cardiac and general SPECT Ultrafast patient setup for ...
Company:Siemens Medical Solutions USA, Inc.

Immulite Chemiluminescent Immunoassay System

Features:... results in less than 15 minutes Enzyme-amplified chemiluminescence Proprietary wash technique Sustained luminescence Light-signal attenuation for broad assay ranges Real-time system monitoring Stable, stored curves LIS interface, with host query capability ...
Company:Siemens Medical Solutions Diagnostics

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Attenuation in Medical Definition

Growth attenuation

... Growth attenuation is an elective medical treatment which involves administering estrogen ... treated for excessive tallness in North America. More recently, growth attenuation treatment has been in the news as part of the controversial Ashley ...

Nuclear medicine

... patient. Activity closer to the camera face will produce more information in the image than activity located deeper in the body, however, because of attenuation by tissues between the radionuclide event and the camera face. Tomographic imaging applies similar principles, taking multiple planar images from ...
Attenuation in Biological News

US Air Force technology helps scientists understand plant root function

... from a newly developed non-invasive technique that uses thermal neutron attenuation to measure spatial and temporal distribution of water in soils and near ... neutron tomography is a non-invasive imaging method that measures the attenuation of thermal neutrons, much like photons in x- and gamma-ray techniques, to ...

Research to secure a safe water supply

... old refinery in Leuna, eastern Germany to purify the contaminated groundwater. The joint venture aims to test ways of purifying water through natural attenuation using plants. FLOODING Flood loss database HOWAS 21 online The flood loss database HOWAS 21 was developed by researchers at the ...

AGU journal highlights: Nov. 11, 2008

... (3.3 feet) and period longer than about 1 second) have long been known to excite acoustic waves at twice their frequency that can travel with little attenuation to the bottom of the ocean. This happens through a nonlinear interaction between wave components traveling in opposite directions. Farrell and Munk ...

Fantastic photographs of fluorescent fish

... may be part of a private communication system in fish. Red fluorescence is at the borderline of what is visible to many marine fish, and due to rapid attenuation of red light by water, even those that can see red will be able to see it over short distances only. Fluorescent eye rings may function as an ...

A stronger future for the elderly

... to build proteins. Recent research from the clinical physiology team has shown that the cause of muscle wasting with ageing appears to be an attenuation of muscle building in response to protein feeding. In other words, as we age we lose the ability to covert the protein in the food we eat in to ...

Dosage of fertilizer helps to enhance quality of wheat

... properties. Moreover, according to the research, the distributing the fertiliser dosage in three stages (instead of two) not only enables the attenuation of nitrogen losses by filtering to subterranean waterbeds and emission of gas, but also the beneficial effects are such that they confirm that lesser ...

UT researcher earns $1.3M grant to study toxic cleanup at DOD sites

... chemical and thermal treatment, enhanced microbial degradation, extraction with surfactants, treatment of extracted groundwater, monitored natural attenuation and use of various containment methods to limit further migration. DNAPLs, which include well-known chemicals such as creosote, coal tar and ...

Geron Demonstrates hESC-derived cardiomyocytes improve heart function after myocardial infarction

... cells suspended in the survival cocktail served as control groups. Echocardiography performed four weeks after cell implantation showed attenuation of left-ventricular end-diastolic and end-systolic diameters in animals receiving cardiomyocytes versus all three control groups. In addition, ...

A probe, not an echo

... images represent minute variations in relative attenuation over various frequency bands and they define the ... multi-band signatures caused by their varying attenuation patterns. This promises to allow non-invasive ... within the kidney based on their distinctive attenuation characteristics, so that computerized algorithms ...
Attenuation in Biological Technology

Successful Field-Trial Remediation of 1,2-DCA and VC Contaminated Groundwater in Northern Italy

... Gruppo TRS Selects Adventus EHC ® Enhanced Natural attenuation Biotechnology as Demonstrably Superior to Alternatives New York, NY (Vocus) June 3, 2009 -- The Adventus Group, an ...

InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF

... 46% and 29%, respectively. The difference between the CAPACITY 2 and CAPACITY 1 primary endpoint results at Week 72 may have been due to a modest attenuation in the rate of FVC decline in the placebo group subsequent to Week 48 in CAPACITY 1. Secondary Endpoint Results In CAPACITY 2, pirfenidone ...

Amarin Announces Publication of Pre-Clinical Memory Data in Journal of Neurochemistry

... and age-related changes in the brain and the present findings suggest that the beneficial effects of EPA are likely to result from its attenuation of hippocampal IL-1beta concentration, perhaps as a consequence of its action on expression of PPARgamma." Rick Stewart, Chief Executive Officer of ...

A new wide field-of-view confocal imaging system and its applications in drug discovery and pathology

... and detection optics with the fluorescence mode. Neutral density filter attenuation of laser power at the detection path is used for reflectance imaging, in ... 64 AOTF simultaneously selects the wavelength and controls the degree of attenuation applied. 64 When using an AOTF as a tunable dichroic beamsplitter, ...

Front-face detection for high-concentrate, opaque or solid sample

... and qualitative fluorescence measurements. Highly concentrated and opaque liquids typically have problems with self-absorption and complete attenuation of the beam. When measuring fluorescence at 90, intensity measurements may not be reproducible or detectable, and the excitation or emission spectra ...
Attenuation in Biological Products

microPET Focus 120 from CTI Molecular Imaging, Inc.

Description:... (LSO) detector technology, and include a computer controlled bed, a laser alignment system, a dual processor computer, a rotating source holder for attenuation correction measurements, data acquisition electronics and software for data acquisition, correction, image reconstruction, image display and basic ...
Company:CTI Molecular Imaging, Inc.

microPET R4 from CTI Molecular Imaging, Inc.

Description:... (LSO) detector technology, and include a computer controlled bed, a laser alignment system, a dual processor computer, a rotating source holder for attenuation correction measurements, data acquisition electronics and software for data acquisition, correction, image reconstruction, image display and basic ...
Company:CTI Molecular Imaging, Inc.

microPET Focus 220 from CTI Molecular Imaging, Inc.

Description:... (LSO) detector technology, and include a computer controlled bed, a laser alignment system, a dual processor computer, a rotating source holder for attenuation correction measurements, data acquisition electronics and software for data acquisition, correction, image reconstruction, image display and basic ...
Company:CTI Molecular Imaging, Inc.
Attenuation in Biological Definition

Computed axial tomography

... radiodensity . The pixel itself is displayed according to the mean attenuation of the tissue that it corresponds to on a scale from −1024 to +3071 on the Hounsfield scale . Water has an attenuation of 0 Hounsfield units (HU) while air is −1000 HU, bone is ...

Magnetic resonance imaging

... additional radiofrequency pulse and some more manipulation of the magnetic gradients, a T2 weighted sequence can be converted to a FLAIR (fluid light attenuation inversion recovery) sequence, in which free water now is dark, but edematous tissues remain bright. This sequence, in particular, is currently the ...
Attenuation in Biological Dictionary

Attenuation

... In physics, attenuation is the gradual loss in intensity of any kind of ... glasses, and X-rays are attenuated by lead. attenuation ( ə′tenyə′wāshən ) ( botany ) Tapering, sometimes to a long point. ... attenuation is usually measured in terms of the logarithm of ...

Absorption

... gives bacground knowledge ... More on IOPs: absorption • beam attenuation • volume scattering function ... Absorption , scattering and attenuation spectra measured with a WET Labs ac-s. ... ... detectable by atomic ...

Nuclease

... S1 · Micrococcal nuclease ... Pronunciation of nuclease . nuclease synonyms. nuclease usage examples and nuclease quotes. ... This attenuation of nuclease activity is manifest until ... ...
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