Devices that emit sounds to track medical status or pinpoint military targets may cause mistakes
...r for the same critical indicator, such as a blood flow in the heart....The Lancet Oncology and The Lancet Infectious Diseases
...ents: a meta-analysis Multiplexed immunoassays by flow cytometry for diagnosis and surveillance of infectious diseases in resource-poor settings Sequencing the Aspergillus fumigatus genome...Annals of Internal Medicine, tip sheet, April 2, 2002
...al increased triglyceride levels and reduced blood flow The small blood vessels in the heart normally increase in size in response to exercise and certain medications. This response enables the heart to function more effectively during stress. The authors of this study found that a high-fat meal, whi...Beating heart bypass surgery reduces postoperative complications....
...ly being used when restoring coronary artery blood flow as an alternative to conventional heart bypass (where a mechanical pump is used to maintain blood flow after the heart has been stopped [on-pump surgery]). Gianni Angelini and colleagues from the Bristol...Spiral scan sees stroke blockage more clearly
...se a contrast dye, give physicians a view of blood flow inside vessels and the pattern of blood distribution throughout the brain. Helical scanners also allow them to quickly determine if a stroke is ischemic and find where a blockage exists, says study author Michael H. Lev, M.D. The scan can also show...Medicine implants drastically reduce stroke complications
...f death and disability because it can reduce blood flow enough to kill brain tissue, says Hidetoshi Kasuya...is cloudy because of vasospasm. The reduced blood flow from a vasospasm can cause an ischemic stroke, he adds. Physicians dont know what causes vasospasm, ...Brain center searches for patterns
...egions. Specifically, fMRI detects increased blood flow to a particular region, and such increased flow is triggered by increased activity of the brain cells in that region. In their experiments, Huettel ...Medical microspheres provide precision-release drug delivery
...ream that creates tinier droplets. By varying the flow rate and the frequency of the vibration, the researchers can precisely control the size of the resulting spheres. By combining the acoustic activation and carrier stream techniques, the researchers have fabricated uniform microspheres with diameters ...Jefferson trial looks to improve diagnosis of prostate cancer
...slight irregularities in the normal prostate blood flow pattern that are not seen with conventional Doppler. The researchers plan to follow the patients with positive biopsies for three years to see if contrast-enhanced imaging can also predict which cancers are more aggressive and more likely to return a...Calcium channel gene may play a role in severity of neurodegenerative brain disease
...odegenerative diseases with drugs that control the flow of calcium into cells. Future studies will determine which other genetic and environmental factors may play a role in modifying severity and progression in this neurodegenerative disease....Simple intervention improves quality of dialysis treatment
... an artery and a vein that provides a better blood flow for dialysis. If patients shortened treatment time by coming late or leaving early, the study coordinator educated them about the importance of staying for their full treatment time. Dialysis is similar to drugs in that both must be given at an app......flowing through the "liver", it had the same blood flow properties as the living system, says Borenstein. The 3D blood vessel model is then "sliced up" inside the computer, dividing the model into a series of horizontal layers, each of which is used to make a silicon mould. PLGA is then poured into each ...Mercury ups heart disease risk
...he amount of mercury in the hair was determined by flow injection analysis-cold vapor atomic absorption spectrometry and amalgamation, one of several tests available to determine mercury content. Men who consumed 30 grams or more of fish daily had 56 percent higher average hair mercury than those whose...Calcification of breast blood vessels may predict stroke risk
...m of stroke, occurs when a blood clot blocks blood flow supplying part of the brain. Clots are more likely to block vessels narrowed by atherosclerosis, the build up of fats, cellular debris and calcium. Although attention has tended to focus on the fatty buildup, recent studies have begun to explore a ...New drug holds promise to block clots in people with artery disease
... clots lodged in the coronary arteries block blood flow to the heart and cause most heart attacks. Anticoagulant therapy is commonly prescribed for people with heart disease to prevent further clot formation. The biggest drawback for anticoagulant drugs has been the potential for bleeding complications ...Physics tip sheet #11 - May 1, 2002
...e connections between nozzle sizes, nozzle shapes, flow rates and dripping patterns. The researchers found...les, the dripping patterns are mainly dependent on flow rates. For small nozzles, the patterns depend on the shape of the nozzle such as whether it is flat ...Electricity can pump medicine in implanted medical devices
... he continued. "The fluid will flow down the channel." Other researchers have studied ... nanometers wide. In a 20-nanometer channel, the flow rate was nearly 0.8 nanoliters per minute. Though the computer models were based...American Thoracic Society Journal news tips for May (first issue)
... A group of 23 Australian infants who demonstrated flow limitation in expiratory breathing at 4 weeks of age continued to have reduced lung function ability and increased airway resistancethrough age 11. The researchers found that the association between airway resistance and reduced lung function, prese...Drill and suction procedure holds promise for clogged arteries
...solves, after a heart attack, the better the blood flow in coronary vessels and the better the patient wil...sty and/or the placement of a stent improves blood flow in the large vessels of the heart, as well as circulation in the tiny microvessels, says study autho......he brain and records regional differences in blood flow and oxygen levels. These differences are then analyzed to reveal areas of brain activity. "Study participants at the Massachusetts General Hospital are being evaluated doing relatively simple tasks, such as hand movements, under normal and sleep-depr...