Tag: "positives" at medical news

Fewer false alarms when mammographers have greater experience screening healthy breasts

...es and subject fewer women to the anxiety of false positives for cancer, when compared to physicians with less experience or those who don't have the same focus, according to a new study. The research was led by a UCSF team and is published in the March 2 issue of the Journal of the National Cancer Institute ...

Mayo Clinic researcher calls for improved newborn screening

...ealth to develop a secondary analysis of the false positives that all but eliminated the problem for one particular condition, congenital adrenal hyperplasia. Compared to a relatively low false positive rate of just under half of one percent in 2003, the secondary screen lowered the false positive percentage ...

Faster, less expensive test proven more effective in detecting bladder cancer

...rsus 86 percent), meaning that the number of false positives was higher for the NMP22 test. Still, the authors say "the high specificity of cytology is offset by low sensitivity, ambiguous test results, expense, and time lag to obtain reports."...

Clot-busting drugs may help detect potentially deadly leg clots

...ving drug right before the test may clear up those positives and negatives, he says, hypothesizing that measuring the difference between the standard and the new 'provoked' d-dimer test will allow the clinician to better determine whether the clot was present in the first instance. A better d-dimer test also ...

Auditory screening for newborns can be successful, UT Southwestern researchers report

...our hours after birth, reduces the number of false positives and that providing outpatient retesting at the birth hospital improves the number who returned for follow-up. "Our study demonstrates that Universal Newborn Hearing Screening can be successfully implemented in a public hospital with a larger number ...

New study raises questions about the number of people in the UK who could be incubating vCJD

...ight be incubating the disease. Based on the three positives and calculations in the highest risk group (those aged 10-30), the researchers estimate that about 3,800 individuals in the UK would test positive. Although the scientists are certain that prion proteins were present in three samples, only one showe...

CAD acts as 'intelligent colleague' in detecting polyps in the colon

..., our study found that 77% of the computer's false positives were easily (and appropriately) dismissed by the human readers," he said. "It is very difficult and time consuming to read and interpret CT colonography examinations," said Dr. Yoshida. The time and the difficulty of the doing and interpreting the ex...

First biomarkers to diagnose Lou Gehrig's disease found in CNS

... the ALS patients) and specificity (avoiding false positives among the non-ALS patients). These protein peaks represent the first biomarkers for ALS and could be completed within a few hours instead of the months now demanded. The next step, says Dr. Bowser, is to confirm these results in a larger patien...

Friendships play key role in suicidal thoughts of girls, but not boys

...ing about suicide. It is better to get a few false positives than to miss some of them," he said. The results of the study offer several suggestions for identifying and helping adolescents at risk for suicide, Moody said. In addition to the friendship findings, the study mirrored other studies that show teens ...

New dynamic PET technique offers greater comfort for cancer patients

...PET scans can have the tendency to result in false positives when tissue that is merely infected appears visually similar to a malignant tumor. Static PET scans allow doctors to assess standardized uptake value (SUV), which does provide some quantifiable data to differentiate between benign and malignant growt...

PET scan predicts Alzheimer's more accurately

...6 percent. However, patients in this group who had positives PET scan were 18 times more likely to develop progressive dementia in the future than those whose scans were negative. Neurologists who diagnosed their patients with progressive dementia were correct 84 percent of the time. Adding a positive diagn...

Brief telephonic questionnaire detects early signs of dementia

...g for colon cancer, which produces 2.2 to 5.6 true positives out of 100 patients with positive results. A positive result on the screen does not equal a diagnosis of dementia but rather provides evidence that further diagnostic evaluation is needed. The researchers designed the questionnaire to be administered...

18F-FLT more accurate than 18F-FDG for differentiating unclear lung lesions

...en to be a reliable and accurate tracer, but false positives have been noted in areas of inflammation. Recently, German researchers conducted a study comparing the results of 18F-FDG PET and 18F-FLT PET and found the latter to be a more precise indicator for diagnosing unclear lung lesions. The study, publish...

Life-saving imaging techniques developed at Oxford University

... reduce the risk of both false negatives and false positives in identifying calcifications in mammograms....

UCLA Study shows how early diagnosis of Alzheimers helps patients

...valuations 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 unnecessary nursing-home care. UCLA researchers knew that early drug therapy typically slows the cognitive decline caused by Alz...

Fred Hutchinson oversees two grants of nearly $8 million to develop blood test for breast cancer

...aphy 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 detection of bre...

Early osteoporosis detection can prevent fractures

...nd misinterpretations of bone density tests. False positives 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...

Know your risk for hepatitis C virus

...aboratories that will require them to separate low positives from strong positive tests and do follow up testing before reporting results to a physician. The guidelines are expected to be released this fall. Testing for HCV Infection However, in most instances of patient testing, the clinical question is n...

UCSF study shows breast cancer screening programs that interpret the most mammograms

...itives. This study maintains that minimizing false positives has not been shown to be associated with a lack of thoroughness in detecting cancer. The bias for more biopsies in the U.S. may actually reflect a cultural bias rather than a quality advantage, according to the authors. Many women undergo biopsies f...

Study examines benefits of caring for seniors

...e another 20 identified more than one. Some of the positives included feelings of companionship, fulfillment, enjoyment and the satisfaction of meeting an obligation and providing quality of life to people. Knowledge of caregivers' degree of positive feeling can assist professionals in determining risk factors...

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