Articles tagged with False Positives
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A new study published in Neurology suggests that regularly monitoring pulse after a stroke can detect irregular heartbeats and prevent a second stroke. The study found that healthcare professionals had a high sensitivity rate of nearly 97% in detecting irregular heartbeats.
23andMe's new HaploScore algorithm improves IBD detection accuracy, enabling more accurate genetic relationships and ancestry reports. The open-source algorithm can be applied to existing IBD segments, differentiating between true and false positives.
Researchers from North Carolina State University have developed a new security tool called Practical Root Exploit Containment (PREC) to detect and contain malware that attempts root exploits in Android devices. PREC targets code written in the C programming language, reducing false positives and making anomaly detection more practical.
Researchers at Brigham Young University have developed a new breast cancer screening technique using sodium MRI that produces five-times more accurate images than previous methods. The device aims to reduce false positives and unnecessary biopsies by scanning for sodium levels in the breast.
A Rhode Island Hospital psychiatrist argues that lowering diagnostic threshold for bipolar disorder will lead to more false positives than true positives, resulting in inaccurate diagnoses and treatments. This could have severe consequences for patients, including increased use of unnecessary medications.
A 20-year breast cancer screening program in the Netherlands showed a significant drop in deaths from the disease, with a 31% reduction in deaths among women aged 55-79. The program also found limited harm from false positives and over-diagnosis, with only 2.8% of all breast cancers diagnosed being over-diagnosed.
A study found that commercially-available tests for latent TB infection have high false-positive rates in low-prevalence populations, with 77% of subjects having positive results with only one test. The findings suggest that risk stratification may increase the predictive value and reduce false positives.
A new screening strategy for critical congenital heart disease (CHD) uses pulse oximetry to detect low oxygen levels in newborns. The American Academy of Pediatrics and other medical organizations endorse the approach, which has already been adopted by New Jersey.
The LuCED test uses 3D imaging to accurately detect cancer cells in sputum samples from high-risk individuals. This approach can significantly lower the number of false positive cases, making mass screening programs more feasible and cost-effective.
A new study by the University of Leicester found that GPs struggle to identify people in the early stages of dementia, resulting in both missed cases and misidentifications. The research analyzed 15,277 patients with cognitive disorders, identifying a significant number of false positives.
A Tel Aviv University study found that EKG screenings for young athletes do not prevent sudden death syndrome, contradicting mandatory screening laws. The study suggests that the screenings are costly and have limited effectiveness, with over 30,000 athletes needing to be screened to save one life.
A new initiative called Cell-All aims to equip cell phones with sensors capable of detecting deadly chemicals. The technology uses a chip costing less than a dollar and can alert the user and authorities in under 60 seconds, reducing false positives and improving response time.
Researchers have developed 'filters' that can be used to weed out compounds likely to show up as false positives during high-throughput chemical screening. This will reduce the time spent on medicinal chemistry and optimize the compound selection process for drug development.
Researchers found that adding tests to cystoscopy increases costs and false positives, while cystoscopy alone is the most effective in detecting tumors. The study suggests that clinicians can make judicious use of urinary markers to reduce costs and anxiety for bladder cancer patients.
A recent NYU study empirically challenges the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders' criteria for diagnosing depression, suggesting that psychiatrists' official method to prevent false-positive diagnoses may not be effective. The study examines the Clinical Significance Criterion (CSC)...
Researchers found that the benefits of diagnosing MCAD-related disorders early outweigh the costs of false positives, including stress and dietary restrictions. The study concluded that newborn screening remains cost-effective even after accounting for quality-of-life losses associated with false positives.
A meta-analysis of 50,000 patients found GPs accurately diagnose only about half of those with depression, while misdiagnosing others. The authors suggest additional consultation time and repeated assessments to improve accuracy.
A review of commonly used C. difficile test kits found inaccurate results, leading to misdiagnosis and severe consequences. A new two-stage testing system is proposed to improve diagnostic accuracy and reduce false positives and negatives.
A case of false positive octreoscan in Crohn's disease was reported in the World Journal of Gastroenterology, highlighting a potential misdiagnosis. The study found that immunohistochemical studies did not reveal somatostatin receptors in the sample, and no explanation for the abnormal uptake was determined.
A growing number of 'pseudoepidemics' of false-positives for TB are occurring in the US Army due to universal testing with an inaccurate TST. The problem is most prevalent in regions with high TB rates, such as Iraq and Afghanistan.
A study by Ann Schlosser found that virtual experiences can improve true memories but also cause people to imagine features and functions that don't exist. This can lead to false positives, where individuals believe a product has attributes it doesn't actually have.
Researchers propose a simple test that identifies more accurately individuals who might have colorectal cancer when used alongside traditional guaiac tests. This new approach could decrease the number of false positives in screening programs and reduce the need for colonoscopy, potentially leading to improved accuracy and reduced costs.
A new algorithm, 'particle picking by segmentation,' enables fast and reliable selection of images for 'crystallization in silico' from millions of candidates. By focusing on background noise, the approach improves yields over existing methods.
Dr. Piero Rinaldo calls for improved newborn screening due to inconsistent use of existing technology and variability in quality parameters. He highlights the success of secondary analysis in reducing false positives and improving screening value.
A recent study found that false positive cancer screening test results can lead to substantial medical care costs, affecting both men and women. The research highlights the importance of considering not only the clinical benefits but also potential adverse effects of new screening tests.
A study by Solveig Hofvind and colleagues found that women who undergo biennial mammography between ages 50-69 have a 20.8% cumulative risk of false positive recall after 20 years. This risk is lower for benign procedures, with only 1 in 66 women requiring a core biopsy and 0.9% undergoing open biopsy.
Researchers at Penn State developed a new marking scheme that can identify the originator of spam, viruses, and illegal file-sharing messages with high accuracy. The approach uses border routers to mark packets with identifying numbers, allowing for efficient traceback of malicious content.
A study by the Infectious Diseases Society of America suggests that gonorrhea tests may produce false-positive results, particularly in low-risk populations or areas with low gonorrhea rates. Doctors are urged to obtain their patients' sexual histories to accurately diagnose and interpret test results.
A study found that gasoline additives like MTBE can interfere with older breath-alcohol analyzers, but not newer models. This raises concerns about the accuracy of breath tests for people exposed to high levels of MTBE, such as workers in the gas station industry.