Mayo Clinic researchers develop a new imaging test for diagnosing breast cancer
...reast cancer, but unfortunately there are too many false positives," Dr. Ehman says. "The goal of our research is to determine whether we can use this new MR elastography technique to improve the accuracy of MRI for breast cancer diagnosis, thereby reducing the need for biopsies." "Standard imaging techniq...Preventing misuse of performance-enhancing substances a growing and difficult task
...rmly applied, with thorough investigation to avoid false positive results and ruin an athlete's career. The difficulty of detecting and preventing the abuse of performance enhancing substances by adult athletes may seem futile but remains necessary as part of the effort to discourage abuse by youths who e...'Drink at least 8 glasses of water a day' -- Really?
...at dark urine reflects dehydration is alarmist and false in most instances. Is there scientific documentation that we do not need to drink "8 x 8"? There is highly suggestive evidence, says Valtin. First is the voluminous scientific literature on the efficacy of the osmoregulatory system that maintains wa...Media focus on endostatin helped -- not hurt --
... I research population, for this group avoids both false hope and hopelessness," the researchers say in their study publication. In this study, media coverage didn't inflate hope -- "everyone had hope," says Pentz -- but did increase understanding of the purpose of the trial, she says....Study finds outbreak of Cipro web sites followed anthrax outbreak
...ght sites (14 percent), the researchers documented false or misleading claims. During the study period, state authorities brought enforcement actions against three of the Web sites in the CWRU study. Also in response to the Internet explosion of Web sites selling ciprofloxacin, the FDA ordered all private ...Early osteoporosis detection can prevent fractures
...ositives could lead to inappropriate treatment and false negatives could lead to missed treatment opportunities. Costs of tests and treatment are also factors to consider when screening. Also, fear and anxiety often accompany a diagnosis of osteoporosis, just as with any medical ailment. The U.S. Preventiv...Radiologists interpretation of mammograms varies widely
... is an important factor in determining the rate of false positive readings, they note that the quality of mammographic interpretation cannot be addressed without also examining the number of cancers missed. "Knowing where to trade off an increase in sensitivity for a decrease in specificity is not a matter...Lung cancer screening trial compares CT and standard x-ray
... which do not turn out to be lung cancer known as false positives. Many of these abnormalities are scars from smoking, areas of inflammation or other noncancerous conditions that may require additional testing to determine that they are not harmful. These tests have been known to cause undue anxiety for...D.C. surveillance system considered a model for early disease detection
...e not being so sensitive that it triggers a lot of false alarms. They predict that systems based solely on ambulatory data will likely never be sensitive enough to detect outbreaks of disease that occur in very small numbers, such as West Nile virus, or even the few people affected by anthrax exposure last...Equation rivals ultrasound in calculating birth weight
...ensive test that can give a mother and physician a false sense of security as far as birth size is concerned," said Gerard Nahum, M.D., lead author and an associate clinical professor in the department of obstetrics and gynecology at Duke University Medical Center. "Ultrasounds are limited by what they can...Fred Hutchinson oversees two grants of nearly $8 million to develop blood test for breast cancer
...ammography in younger women include a high rate of false positives that result in unnecessary biopsies and the inability to distinguish between aggressive, life-threatening cancers versus slow-growing tumors that may not need treatment. "Despite decades of research on mammography as a tool for early detect...UCLA Study shows how early diagnosis of Alzheimers helps patients
...ical evaluations would have prevented 11 of the 23 false positives and five of the eight false negatives. Using these figures, Silverman next calculated how much PET would reduce months of unnece......of Provigil fear that the drug might give people a false sense that they can cheat their need for sleep, while in reality they may be accumulating a sleep debt that will ultimately harm them. Sleep deprivation leads to cognitive impairment, as well as seriously disrupting the immune and hormone systems, al...Improved molecular beacons show promise for cancer detection, rapid viral diagnosis
...te the dye molecule from the quencher, producing a false positive signal. To address that problem, Bao and...fted optical signal that can be distinguished from false signals produced by the enzymatic digestion of single beacons. "FRET is extremely sensitive to the d...Desert sandstorms add dangers for pilots
...ts, may react by lining his plane's wings with the false horizon. This can result in hard landings or a crash because the pilot isn't flying level as he approaches the landing strip. "Helicopter pilots suffer most from brownouts because they fly at very low altitudes," Lessard said. In the landing phase, h...Nationwide improvement in nursing home care not likely, despite some changes
...f individual differences. Easy measures that bring false reassurance need to be avoided. The subject of QOL must be elevated, not trivialized." Writing on "The Quality of Quality Measurement in U.S. Nursing Homes," Vincent Mor of Brown University and others noted that "a variety of new statistical models t...MRI may help find missed breast cancers in high risk women
...ever, that MRI also yields a significant number of false positive results, leading to additional exams that may have a negative psychological impact on women who are already anxious because of their elevated risk. "MRI may improve the sensitivity of breast cancer surveillance for women at the highest level...Life-saving imaging techniques developed at Oxford University
...ant clusters, but equally must not signal too many false positives. With the increasingly vast number of ma...n limited by faults such as the return of too many false positives. Oxford researchers, however, have recently developed a foveal segmentation method, based ...Pediatric food allergies: What every parent should know
...of the IgE antibody, not clinical reactivity (~50% false positive). A negative prick test or RAST essentially excludes IgE antibody (>95 percent). Diagnostic Strategies When food-specific IgE concentrations predictive of clinical reactivity are present, then the following could be recommended: ......itations to even the most proven tests, however: a false positive reading results in an improper diagnosis and possible overmedication and subsequent adverse reactions. But an accurate diagnosis allergen identification can contribute to altering the progression of the allergy march, improve quality of li...