| Medical equipment generale (1075) |  |
blood pressure, core body and skin temperature, respiratory rate, blood oxygen levels, blood pressure and emotional stress levels.
an electrocardiography (ECG) machine developed to monitor heart activity in patients in remote areas of Cameroon,
and what it does have a use for keeping blood pressure stable, for instance goes back. If this process stops working the body will soon shut down,
which stimulates the constriction of blood vessels to increase blood pressure. Both of these are controlled by the macula densa.
However, she believes the work shows the scent receptors she accidentally discovered are a previously unknown means for bacteria to tell the kidney to make blood pressure changes that allow them to best carry out their health-related functions.
#Brain imaging may help predict future behavior Noninvasive brain scans, such as functional magnetic resonance imaging, have led to basic science discoveries about the human brain,
but they've had limited only impacts on people's day-to-day lives. A review article published in the January 7 issue of the Cell Press journalneuron,
however, highlights a number of recent studies showing that brain imaging can help predict an individual's future learning, criminality, health-related behaviors,
Dr. John Gabrieli of the Massachusetts institute of technology in Cambridge and his colleagues describe the predictive power of brain imaging across a variety of different future behaviors
"If we can use neuroimaging to identify individuals at high risk for future failure, we may be able to help those individuals avoid such failure altogether."
#Wearable sensor clears path to long-term EKG EMG monitoring Researchers from North carolina State university have developed a new, wearable sensor that uses silver nanowires to monitor electrophysiological signals, such as electrocardiography
(EKG) or electromyography (EMG. The new sensor is as accurate as the"wet electrode"sensors used in hospitals,
Electrophysiological sensors used in hospitals, such as EKGS, use wet electrodes that rely on an electrolytic gel between the sensor
"The new sensors are also compatible with standard EKG -and EMG-reading devices.""I think these sensors are essentially ready for use,
The tiny device is already within the range of generating enough electricity to power a pacemaker on its own,
These results, the team concluded, demonstrate that their system could power implants like pacemakers with
Also what does the medical imaging tell us or what does the blood biomarkers (blood samples) tell us The database allows neurologists to compare their patientscases with similar ones.
For example, the end-of-line production defect rate for the tiny catheters (flexible tubes) used for treating patients with cardiovascular disease is as high as 80%.
%The greater accuracy during manufacturing paves the way for the production of even smaller catheters to tackle blood-flow problems in harder-to-reach places of the body.
and read by the electrodes. s soon as we have understood the electroencephalography patterns produced by the groups of neurons in the brain,
and even personal transportation vehicles such as electric wheelchairs. he system will be developed further to easier integrate with many more systems and programs,
whereas our pieces weigh. 06 grams it would be akin to injecting insulin with a horse syringe,
milling, lathing or fashioning it into parts and tools for different uses from car panels to precision medical instruments to moving parts in a paintball gun.
The Consortium has developed the core e-Infrastructure (neugrid) required to develop disease markers on extra large brain imaging datasets.
Extra large brain imaging datasets are lately available that will allow to develop disease markers. The community of imaging scientists working on Alzheimer's disease need new powerful environments to perform experiments on such datasets.
physiological responses like blood pressure or respiratory rate are analysed in comparison to the physical activities of the patient.
The system itself includes an external component (an ear hook similar to traditional hearing aids) and an implant
CT SCANS and radon do not have the potential to damage DNA.""There is no known pathway for any adverse health effects,
They have since been joined by more than 20 other leading multinational companies including Diageo General mills Johnson & johnson Mcdonalds Microsoft Nestl
and 80 percent expect that to be the case in two years according to a Harris Poll commissioned by Johnson & johnson. The global findings are similar to those of US health care providers where 52 percent say their hospitals currently incorporate sustainability into purchasing
The survey results are in line with a 2012 report released by Johnson & johnson which showed that hospitals were placing greater emphasis on green products used in patient care and throughout their facilities.
Last year Johnson & johnson launched a recycling campaign on Tumblr with the goal of encouraging consumers to recycle bathroom products instead of throwing them in the trash h
and a robotic platform that can operate inside the powerful magnetic field created by an MRI SCANNER.
##We knew we had this ability to have a robot in the MRI SCANNER doing something in a way that other robots could not.
because when platelets grab onto the surfaces of catheters and medical implants they tend to form clots a major problem for patient care.
For the study published in Heart Rhythm participants were hooked simultaneously up to an electrocardiogram (ECG) so results from the facial scan could be compared to the actual electrical activity of the heart.
Color changes detected by video monitoring corresponded with an individualâ##s heart rate as detected on an ECG.
The video monitoring technique which researchers dubbed videoplethymography had an error rate of 20 percent comparable to the 17 to 29 percent error rate associated with automated ECG measurements.
#Simple alerts can cut infections from catheters University of Pennsylvania rightoriginal Studyposted by Lee-Ann Landis Donegan-Penn on August 26 2014simpler automatic alerts in electronic health
records can cut the number of urinary tract infections in patients with urinary catheters report researchers. The alerts help physicians decide
whether their patients need urinary catheters in the first place and then alert them to reassess the need for catheters that have not been removed within a recommended time period.
Approximately 75 percent of urinary tract infections acquired in the hospital are associated with a urinary catheterâ##a tube inserted into the bladder through the urethra to drain urine.
According to the Centers for Disease Control and Prevention 15 to 25 percent of hospitalized patients receive urinary catheters during their hospital stay.
As many as 70 percent of urinary tract infections in these patients may be preventable using infection control measures such as removing no longer needed catheters resulting in up to 380000 fewer infections and 9000 fewer deaths each year.##
##First electronic alerts do result in fewer catheter-associated urinary tract infections. Second the design of the alerts is very important.
By making the alert quicker and easier to use we saw a dramatic increase in the number of catheters removed in patients who no longer needed them.##
##Fewer catheters means fewer infections fewer days in the hospital and even fewer deaths. Not to mention the dollars saved by the health system in general.##
##In the first phase of the study two percent of urinary catheters were removed after an initial##off-the-shelf##electronic alert was triggered (the stock alert was part of the standard software package for the electronic health record.
and used a simplified alert based on national guidelines for removing urinary catheters they had published previously with the CDC.
Following introduction of the simplified alert the proportion of catheter removals increased more than sevenfold to 15 percent.
The study also found that catheter associated urinary tract infections decreased from an initial rate of. 84 per 1000 patient days to. 70 per 1000 patient-days following implementation of the first alert and. 50 per 1000
Among other improvements the simplified alert required two mouse clicks to submit a remove-urinary-catheter order compared to seven mouse clicks required by the original alert.
In patients electronic health records physicians were prompted to specify the reason (among ten options) for inserting a urinary catheter.
On the basis of the reason selected they were alerted subsequently to reassess the need for the catheter
Women s health units had the highest proportion of alerts that led to a remove-urinary-catheter order
At the moment we typically need to wait for a cystic fibrosis treatment to have an effect on lung health measured by either a lung CT SCAN
noninvasive techniques such as CT SCANS or MRI visualize function best at the whole-organ level, but can visualize individual vessels or groups of neurons.
an echocardiogram, or an electrocardiogram. Dogs with the mild form of SAS may have a normal lifespan.
Those with the severe form, however, often die by the time they turn four years old, even with therapeutic drugs.
and passed through a syringe. The electric charge on the substance surface causes it to form a long string from the syringe,
where it whips aroundr spinsefore collecting on an electrically grounded surface. A palm-sized swatch of the fabric takes about five minutes to make.
#Tiny fly ear seesaw could boost hearing aids Engineers have developed a tiny, low-power device that mimics a fly ultra-sensitive hearing.
The advance could lead to hypersensitive hearing aids. The new device could be used to build the next generation of hearing aids with intelligent microphones that adaptively focus only on those conversations
or sounds that are of interest to the wearer. The researchers drew inspiration for the device from the yellow-colored Ormia ochracea fly.
andriux-uk/Flickr) ecause hearing aids rely on batteries, minimizing power consumption is a critical consideration in moving hearing-aid device technology forward,
Currently, only two percent of Americans wear hearing aids, but as much as ten percent of the population could benefit from wearing one,
In addition to possibly improving hearing aids, the device could have military and defense applications as well. In dark environments, for instance, where visual cues are not available
#Loss of sleep after divorce can spike blood pressure Divorce-related sleep problems may be partly to blame for significant health problems,
Blood pressure was measured also at each of the three lab visits. Although researchers did not observe a relationship between sleep complaints
and blood pressure levels at the participantsfirst lab visits, they did observe a delayed effect, with participants showing increased systolic and diastolic blood pressure in later visits as a function of earlier sleep problems. e saw changes in resting blood pressure were associated with sleep problems three months earlier.
Earlier sleep problems predicted increases in resting blood pressure over time, Sbarra says. A ontrivial bump Researchers also found that the longer people sleep problems persisted after their separation,
the more likely those problems were to have an adverse effect on blood pressure. hat we found was
if youe having sleep problems up to about 10 weeks after your separation, they don appear to be associated with your future increase in blood pressure,
Sbarra says. owever, after 10 or so weeksfter some sustained period of timehere seems to be a cumulative bad effect.
Sbarra says. ach standard deviation increase in sleep complaints corresponded to a roughly six unit increase in subsequent systolic blood pressure,
Value sleep Systolic is the top blood pressure number and measures the pressure in the arteries when the heart beats;
Normal blood pressure is around 120/80. People who have persistent difficulties sleeping after a divorce may address the issue by seeking out cognitive behavioral therapy,
Decreases in stroke incidence and mortality are partly due to more successful control of risk factors such as blood pressure or smoking and to the wide use of statin medications to control cholesterol.
He says related research has suggested major depression may have a physiological effect on blood pressure or arterial tightening that can cause cardiovascular disease. t physiologically important
Similar to how a person blood pressure varies throughout the day with activity levels eye pressure is thought to behave similarly,
Junichiro Kono a physicist at Rice university says the potential to replace magnetic resonance imaging (MRI) technology in screening for cancer
Researchers say the new optical approach is ideal for children and for patients with electronic implants, such as pacemakers, cochlear implants,
The magnetic fields in magnetic resonance imaging (MRI) often disrupt either the function or safety of implanted electrical devices.
called diffuse optical tomography (DOT), for more than 10 years, but the method had been limited to small regions of the brain.
Portable scans Another commonly used method for mapping brain function is positron emission tomography (PET), which involves radiation exposure.
going forward, could make optical neuroimaging much more useful in research and the clinic. While DOT doesn let scientists peer very deeply into the brain,
Researchers used standard magnetic resonance imaging as part of a new method to measure stroke damage to the blood-brain barrier.
such as pulling the clot out mechanically via a catheter threaded from the groin area or by directly injecting tpa into the brain.
MRI FOR EVERY STROKE PATIENT Typically, physicians do a CT SCAN of a stroke victim to see
An MRI scan does take longer to conduct in most institutions than a CT SCAN, Leigh concedes.
#Wireless pacemaker is much smaller than a penny Engineers have built an electronic pacemaker that smaller than a grain of rice
and used it to power a tiny pacemaker in a rabbit. Theye preparing the system for testing in humans.
Researchers say the patches could revolutionize clinical monitoring such as EKG and EEG testingo bulky wires, pads,
Researchers did a side-by-side comparison with traditional EKG and EEG monitors and found the wireless patch performed equally to conventional sensors,
while being significantly more comfortable for patients. STRESS TESTS AND SLEEP STUDIES Such a distinction is crucial for long-term monitoring situations,
#Super high-res MRI detects single atom For the first time researchers have detected a single hydrogen atom using high-resolution magnetic resonance imaging (MRI.
At the moment we typically need to wait for a cystic fibrosis treatment to have an effect on lung health measured by either a lung CT SCAN
Meanwhile noninvasive techniques such as CT SCANS or MRI visualize function best at the whole-organ level
which are used for medical imaging and nuclear powernd are some of the world most expensive chemical commodities.
and Russia, will continue meeting global demand. 2, 000 times the price of gold One of the major sources of molybdenum-99, essential for medical imaging in tens of millions of heart, kidney,
Nuclear medicine in particular could benefit from the new method, the researchers say. Many stable isotopes are precursors to the short-lived radioisotopes used in medical imaging
cancer therapies, and nutritional diagnostics. The new method also has the potential to enhance our national security.
#EEG reveals image in short-term memory Researchers have tapped the rhythm of memories as they occur in near real time in the human brain.
Using electroencephalogram (EEG) electrodes attached to the scalps of 25 student subjects, a team led by University of Oregon psychology doctoral student David E. Anderson captured synchronized neural activity
The new findings show that EEG measures of synchronized neural activity can precisely track the contents of memory at almost the speed of thought,
Past work, mainly using functional magnetic resonance imaging (fmri), has established that brain activity can track the content of memory.
EEG, however, provides a much less expensive approach and can track mental activity with much a higher temporal resolution of about one-tenth of a second compared to about five seconds with fmri. ith EEG we get a fine-grained measure of the precise contents of memory,
while benefitting from the superior temporal resolution of electrophysiological measures, Awh says. his EEG approach is a powerful new tool for tracking
and decoding mental representations with high temporal resolution. It should provide us with new insights into how rhythmic brain activity supports core memory processes.
That limits their usefulness for applications like weapons and chemical detection and medical imaging and diagnosis, says Jay Guo,
#From coal, cheap quantum dots in one step Chemists have discovered how to reduce three kinds of coal into graphene quantum dots (GQDS) that could be used for medical imaging as well as sensing electronic and photovoltaic applications.
Medical imaging could also benefit greatly as the dots show robust performance as fluorescent agents. ne of the problems with standard probes in fluorescent spectroscopy is that
Doug Rowland project scientist in the Center for Molecular and Genomic Imaging in the department of biomedical engineering contributed X-ray computed tomography scanning of the rock.
or the batteries have no charge remaining. n addition to the applications discussed above such technology could be extended to other radiations such as magnetic resonance imaging (MRI) and light detection and ranging (LIDAR)
Another possible application is small portable X-ray sources to improve medical care for people injured in combat as well as to provide more affordable medical imaging for hospitals and laboratories.
while their brains were scanned both with magnetoencephalography (MEG) which measures the oscillations with precise timing and polysomnography
On day five the researchers scanned each volunteer with an magnetic resonance imaging machine which maps brain anatomy
offers two ways that solar steam can be used for sterilizationne setup to clean medical instruments and another to sanitize human waste. anitation
combines functional magnetic resonance imaging (fmri) and machine learning to measure brain signals to accurately read emotions in individuals.
professor of psychology, director of the university Center for Cognitive Brain imaging, and neuroscientist, explains, e found that three main organizing factors underpinned the emotion neural signatures, namely the positive or negative valence of the emotion, its intensityild or strong,
Magnetoencephalography (MEG) is a noninvasive procedure that measures the magnetic fields generated by the brain. This helps neuroscientists understand perceptual and cognitive processes
Currently, to perform a magnetoencephalography, an array of over 306 SQUID sensors is mounted in heavy helmet-shaped flasks containing cryogenic coolants.
whose main use case is letting surgeons physically eelanomalies such as tumors in CT SCANS, could also revolutionize everything from advertising to architecture.
such as feeling the differences between materials in a CT SCAN or understanding the shapes of artifacts in a museum.
The edible battery could also be used in medical devices like pacemakers and#implants#that treat Alzheimers and other brain conditions.
sending a signal to pumps carried by the user to administer the required dose via a catheter.
since researchers are limited currently at being able to predict a pacemaker effect on a patient before surgery, for example.
Theye more like industrial fabrication machines with syringes. Users load the syringes with raw food ink dough chocolate
or anything with a liquid consistency and the machine prints the food by depositing layers of liquids to build the desired object.
Nature News A simple change to magnetic resonance imaging (MRI) machines will provide more uniform coverage at higher powers as well as more room for portly patients.
Standard clinical MRI SCANNERS use magnets with field strengths of about 1. 5 Tesla and radio-frequency signals of about 64 megahertz,
a fearful memory can be erased by a drug that is usually used to control blood pressure. When memories are laid first down,
They are also conducting brain imaging studies, and may soon try out the therapy on stronger fearful memories.
They are also conducting brain imaging studies, and may soon try out the therapy on stronger fearful memories r
Using brain imaging techniques, the scientists measured levels and locations of dopamine receptors in brain areas of interest in each participant before and after training.
Nuclear magnetic resonance (NMR) and its close cousin magnetic resonance imaging (MRI) give information about a sample s structure by detecting the weak magnetic forces in certain atomic nuclei, such as hydrogen.
Whereas Magnetic resonance imaging (MRI) is a useful tool, tumors only show up on imaging scans once they are at least one millimeter in diameter
when it reported that lowering blood pressure or blood sugar to prespecified targets did not reduce the risk of heart attack or stroke.
what your LDL or blood pressure is, he says.""We can t just assume that modifying the risk factor is modifying risk.
The Food and Drug Administration (FDA) Thursday approved the first retinal implant for use in the United states. The FDA s green light for Second sight s Argus II Retinal Prosthesis System gives hope to those blinded
a video processing unit and a 60-electrode implanted retinal prosthesis that replaces the function of degenerated cells in the retina,
using the video processing unit to transform images from the video camera into electronic data that is wirelessly transmitted to the retinal prosthesis.
Other retinal prosthesis are powered by inductive coils that, along with other components, must be implanted surgically in the patient s head.
#Waterproof transistor takes cell's electric pulse Think of it as a medical monitor for the cell.
or wheelchairs with their thoughts. The mental remote control, developed by Braingate, will be tested in volunteers possibly within a year.
then used to steer a wheelchair or direct a robotic arm. The Braingate team also won the $1-million B. R. A i. N. Prize at Braintech Israel 2013.
molecular and neuroimaging measures may be additionally helpful for detecting and quantifying the biochemical effects of therapeutic interventions,
The Muse headband is lined with seven EEG sensors that detect the brain electrical activity and sends information about the user state of mind to a smartphone app, Calm,
#Two sensors in one MIT chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging (MRI) and fluorescent imaging in living animals.
receiving pacemaker implants in his chest that could intercept aberrant signals from his brain before they reached his muscles.
because it requires implanting a catheter in the patient for 12 weeks which is difficult for the patients to tolerate.
which causes painful and frequent urination that can interrupt daily life currently requires infusing the drug lidocaine into a patient bladder through a catheter.
the tube could be straightened to fit into a catheter and spring back into its pretzel shape in the bladder,
This structure is threaded into a catheter, and inserted into the bladder. When expelled from the catheter,
the device returns to a pretzel shape and floats freely. The researchers found that the pretzel shape still used in today devices was critical for retention in the bladder,
The researchers have devised a way to use magnetic resonance relaxometry (MRR) a close cousin of magnetic resonance imaging (MRI to detect a parasitic waste product in the blood of infected patients.
Tilting toward a fieldin experiments the team piped a water solution through a syringe and onto the microhair array.
This means it might have applications in areas like collaborative design and medical imaging, as well as entertainment.
using magnetic resonance imaging (MRI) along with a specialized molecular sensor. This is the first time anyone has been able to map neural signals with high precision over large brain regions in living animals,
and can be read with magnetic resonance imaging (MRI). Using this kind of sensor doctors may be able to better determine radiation doses
Initially developed by Herr s research group Biom s prosthesis dubbed the Biom T2 System simulates a biological ankle
When fitting the prosthesis to patients prosthetists can program appropriate stiffness and power throughout all the stages of a gait using software created by Herr s group a process the company calls Personal Bionic Tuning.
and drastically lowers the time required to acclimate to the prosthesis (which can take weeks or months with conventional models).
and engineering research that ultimately led to today s Biom prosthesis was conducted by Herr s research group within the MIT Media Lab
to a traditional prosthesis for the first time. It was as profound as when you re walking through the airport
which uses a high-powered syringe to rapidly discharge the material into a vein. This approach delivers material successfully to liver cells
Stocker says in some cases that phenomenon could lead to new approaches to tuning flow rates to prevent fouling of surfaces by microbes potentially averting everything from bacteria getting a toehold on medical equipment to biofilms causing drag on ship hulls.
Guasto says the new understanding could help in the design of medical equipment to reduce such infections:
and power source that looks like an oversized hearing aid around the patient ear. Researchers at MIT Microsystems Technology Laboratory (MTL), together with physicians from Harvard Medical school and the Massachusetts Eye and Ear Infirmary (MEEI
The most commonly used type of brain scan, functional magnetic resonance imaging (fmri), measures changes in blood flow
Another imaging technique, known as magnetoencephalography (MEG), uses an array of hundreds of sensors encircling the head to measure magnetic fields produced by neuronal activity in the brain.
could be used in medical imaging and collision-avoidance detectors for cars, and to improve the accuracy of motion tracking
The application of polysb to catheters yields a significant reduction in the buildup of protein, mammalian cells,
and microbes on a device surface, compared with unmodified catheters. This has potential to reduce blood clots and infection
is designed specifically for venous catheters and recently earned clearance from the Food and Drug Administration as a medical device deemed safe and effective for commercial distribution in the United states. It also recently received designation as a product meeting European union standards of health, safety,
In the Science Translation Medicine paper, the cofounders exposed polysb-modified catheters to blood for 60 days.
In vitro, the modified catheters on both their external and internal surfaces saw a 98 percent reduction in the accumulation of platelets and three types of white blood cells.
In vivo, the modified catheters showed a 99 percent reduction in thrombus accumulation, 50 percent less inflammation,
similar to a CT SCAN. The research was funded by the National Institute of Biomedical Imaging and Bioengineering and Nanoscope Technologies, LLC n
Consider the thousands of people living today with pacemakers, he says. acemakers are delivering an electrical signal,
#One nanoparticle six types of medical imaging It's technology so advanced that the machine capable of using it doesn't yet exist.
University at Buffalo researchers and their colleagues have designed a nanoparticle that can be detected by six medical imaging techniques:
computed tomography (CT) scanning; positron emission tomography (PET) scanning; photoacoustic imaging; fluorescence imaging; upconversion imaging; and Cerenkov luminescence imaging.
In the future, patients could receive a single injection of the nanoparticles to have all six types of imaging done.
This kind of"hypermodal"imagingf it came to fruitionould give doctors a much clearer picture of patients'organs
while the photoacoustic imaging showed blood vessel details that the first two techniques missed. One nanoparticle, 6 types of medical imaging This transmission electron microscopy image shows the nanoparticles,
which consist of a core that glows blue when struck by near-infrared light, and an outer fabric of porphyrin-phospholipids (Pop) that wraps around the core.
The ytterbium is dense in electrons property that facilitates detection by CT SCANS. The Pop wrapper has biophotonic qualities that make it a great match for fluorescence
new tool for medical imaging,"says Prasad, also a SUNY Distinguished Professor of chemistry, physics, medicine and electrical engineering at UB."
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011