Articles tagged with Diagnostic Accuracy
A study published in JMIR Formative Research reveals that automated analysis of a common clinical drawing task can be used to estimate cognition in older adults from Japan and the USA. Researchers found that people with lower cognitive scores had more variability in their drawing speed, angle, and time spent paused during the task.
Researchers have identified new biomarkers to detect non-small cell lung cancer in its early stages through a blood test, offering improved survival chances. The approach can also identify potential drug resistance, allowing clinicians to choose alternative treatment options.
A study published in PLOS ONE found that dogs can detect SARS-CoV-2 infections with high sensitivity (97%) and lower specificity (91%), even when patients are asymptomatic. The diagnostic accuracy of canine olfaction for non-invasive detection of COVID-19 was demonstrated in a clinical trial conducted in France and the UAE.
A study suggests that lung ultrasounds performed by primary care physicians can accurately diagnose community-acquired pneumonia with high specificity. This could allow for direct antibiotic prescribing, saving time and money for patients and reducing X-ray radiation.
A new study found that three experimental Alzheimer's blood tests perform differently in Black individuals compared to white individuals, putting Black patients at risk of misdiagnosis and inappropriate medical care. The PrecivityAD test was equally effective across racial groups.
A study by Osaka University researchers reveals patients waited years for diagnosis of rare diseases like hereditary angioedema. Long diagnostic delays can be fatal, and raising awareness is key to improving treatment.
New research reveals that women with strokes often exhibit generalized symptoms such as confusion and weakness, potentially leading to delayed diagnoses. Women also face worse post-stroke outcomes, including increased institutionalization rates, compared to men.
Researchers recommend expanding diagnostic workup to include cardiac arrhythmias for unexplained enuresis in adults and children. An electrocardiogram is a cost-effective and non-invasive test that can detect potentially fatal diseases.
Recent studies published in the Journal of Pharmaceutical Analysis have found applications of nanotechnology in medicine, drug research, and environmental protection. Researchers developed nanodots made of carbon using natural polysaccharides from mushrooms to detect chromium, and created nanozymes that could be used to detect drug con...
Researchers identified common features of pediatric antiphospholipid syndrome, a rare autoimmune disease causing inflammation and recurring blood clots. Nearly half of children with APS experienced recurrent blood clots despite treatment, highlighting the need for early diagnosis and prevention.
Researchers have identified phosphorylated human telomerase reverse transcriptase (hTERT) as a novel biomarker for aggressive cancers with poor prognosis. Elevated levels of this modified enzyme are found in various types of cancer, particularly those with aggressive features.
Research suggests that changes in the microbiome may play a role in both the development and progression of pancreatic cancer. A distinct gut microbial profile was observed in patients with ductal pancreatic cancer compared to those without the disease, and this signature consistently identified patients regardless of disease stage.
A study of 31 patients with peripheral arterial disease (PAD) reveals a high correlation between ulcerated plaque in the femoropopliteal artery and poor angiographic runoff scores, suggesting a possible origin for arterial embolism. This discovery could lead to improved treatment methods for PAD.
A study published in American Journal of Roentgenology found that digital breast tomosynthesis (DBT) spot compression views increased both intrareader and interreader agreement, as well as diagnostic accuracy, for equivocal findings. This improvement was primarily due to increased specificity.
A new DNA benchmark, developed by NIST and collaborators, enables more accurate detection of genetic variants linked to diseases such as spinal muscular atrophy. The benchmark, based on HiFi sequencing technology, helps labs and clinics sequence genes with high accuracy, critical for disease diagnosis and treatment.
A novel blood test, Stockholm3, in combination with MRI reduces overdiagnosis of low-risk cancers by 60% and unnecessary biopsies by 9%. This cost-effective approach is recommended for Sweden's organized prostate cancer testing (OPT) pilot projects.
Researchers from Karolinska Institutet developed a novel method to diagnose constant tinnitus using auditory brainstem responses (ABR). The study found that people with occasional tinnitus are at increased risk of developing constant tinnitus, while those with existing constant tinnitus are more likely to experience persistent symptoms.
A study from North Carolina State University demonstrates the accuracy of a less invasive technique for monitoring wildlife health using dried blood spots. Researchers found that this method is comparable to traditional techniques, allowing for easier and less stressful data collection from wild populations.
Researchers at University of Washington developed a fast, cheap test for COVID-19 that combines speed of antigen tests with accuracy of PCR tests. The Harmony COVID-19 test detects genetic material from SARS-CoV-2 virus with 97% accuracy and provides results in under 20 minutes.
A recent study published in The Journal of Urology found that serum hormone ratios can predict the risk of future infertility in children with cryptorchidism. Researchers discovered that inhibin B levels and anti-Mullerian hormone (AMH) are significant markers of spermatogenesis, helping to identify boys at high risk of infertility.
A pooled data analysis of 8 commonly used COVID-19 lateral flow tests found they fell short of minimum criteria set by WHO and US/UK regulators. The tests' accuracy varied between children with and without symptoms, raising concerns about their use in schools.
A new algorithm, FusionM4Net, has been developed to classify skin lesions with improved diagnostic accuracy. The algorithm uses a multi-stage data fusion process and outperforms previous state-of-the-art algorithms.
A large international evaluation shows AI systems can identify and grade prostate cancer in tissue samples from different countries equally well as human pathologists. The results suggest AI can be a complementary tool in prostate cancer care, improving diagnostic quality and consistency.
Research from MUSC suggests that physicians should be cautious when using laboratory tests to diagnose alcoholic cirrhosis due to false negative results. Patients with advanced liver disease often show subtle signs and symptoms in the early stages of cirrhosis.
Researchers at the University of Eastern Finland have developed simpler measurement technologies for diagnosing sleep disorders, enabling more accurate analyses. The new methods use reusable sensors in home environments, reducing costs and increasing patient comfort.
Researchers developed an AI system to detect inflammation in ulcerative colitis patients using live colonoscopy videos. The system accurately predicted remission cases with high accuracy, reducing the need for invasive biopsies.
A new study improves AI diagnoses by penalizing algorithms for false negatives, which can be more urgent than accuracy. Researchers achieved significant improvements in precision and recall for chronic kidney disease and other conditions using cost sensitivity techniques.
A plasma biomarker panel identified a combination of sTNFR1, sTNFR2, cystatin C, and eGFR that discriminated between patients with worsening or low risk of chronic kidney disease after three years. This combination was particularly effective at identifying those with very low risk of subsequent kidney dysfunction.
Researchers assessed diagnostic value of physical symptoms for urinary tract infections in children, finding only circumcision and diaper rash useful for ruling out UTI. They advise against restricting urine sampling to children with unexplained fever or specific features.
A novel mortality risk prediction method helps tailor treatment decisions and transplant needs for patients based on individual symptoms. The new tool uses a random survival forest algorithm to predict individual mortality risk curves, calculate mortality at any given time, and provide a 95% confidence interval.
A telephone-delivered nursing care strategy combining heart failure care management with depression treatment improved patients' clinical outcomes. Patients receiving 'blended' collaborative care showed better mental health-related quality of life, including improved mood and reduced limitations in social activities.
Researchers found that removing race-based adjustments from equations estimating kidney function could make Black patients ineligible for cancer treatments and lower their doses. The analysis showed that Black patients in the US are more frequently diagnosed with cancer and are more likely to die from it than white Americans.
Researchers at UC Berkeley created a rapid COVID-19 diagnostic test utilizing tandem CRISPR nucleases, which accelerates RNA detection and reduces sample handling. This innovation simplifies the assay process, making it faster and more efficient for SARS-CoV-2 virus detection.
A study published in the American Journal of Roentgenology found that ultrasound-guided percutaneous needle biopsy is highly accurate for diagnosing small pleural lesions with nodular morphology or thickness over 4.5 mm. The procedure yielded a diagnostic accuracy rate of 85.4% and a 96.4% yield rate for nodular CT lesions.
This study developed a hemolysis correction equation to improve serum Neuron-specific enolase (NSE) concentration accuracy in small-cell lung cancer diagnostics. The corrected results showed an increased AUC and lower cut-off value for SCLC detection, indicating the importance of hemolysis correction.
A new grant aims to gather evidence on the safest pulse rate for pediatric swallow studies, ensuring both safety and diagnostic accuracy. Research shows that developing cells in children are more susceptible to radiation than mature ones.
A new electrode set enables easy at-home assessment of sleep bruxism, a condition affecting 8-15% of the population. The set's diagnostic accuracy is similar to conventional polysomnography, allowing for reliable and cost-effective management.
A handheld smartphone-enabled 1-lead ECG showed excellent diagnostic accuracy for detecting atrial fibrillation and flutter. The device's integrated algorithm correctly identified 87% of atrial fibrillation cases and 98% of non-atrial fibrillation cases.
Family physicians value physical exams for their diagnostic and empathetic benefits, promoting a healing relationship with patients. The research highlights the importance of physical exams in today's clinical practice, where emerging technology is changing the way doctors interact with patients.
A novel non-hyperemic pressure ratio (NHPR) index, combined with fractional flow reserve (FFR), accurately predicts percutaneous coronary intervention (PCI) success. The study found a significant linear correlation between NHPR and FFR, with a Pd/Pa value of <0.90 demonstrating excellent diagnostic performance against FFR.
Stroke specialists often see conditions known as stroke mimics and 'chameleons' that can mimic ischemic strokes, making accurate diagnosis complicated. Accurate diagnosis requires a detailed history and neurologic examination to avoid administering clot-busting drugs incorrectly.
A study finds that interrupting radiologists does not reduce diagnostic accuracy but changes their focus and increases time spent on cases, with more time spent on dictation screens.
Researchers found that collective intelligence is more accurate than individual diagnoses when doctors have similar levels of accuracy. The study suggests that assembling groups with similar diagnostic abilities can lead to better medical outcomes.
Researchers found that difficult patients distract doctors from processing clinical information correctly, leading to higher misdiagnosis rates. The study showed that even with more time spent on diagnosis, doctors were still more likely to misdiagnose difficult patients than neutral ones.
A new study found that clinical therapists are more likely to misdiagnose mental illness when their patients belong to disadvantaged groups. The researchers followed patients and therapists during intake sessions, finding a twofold difference in diagnostic accuracy between advantaged and disadvantaged clients.
A UK study has found that some popular breathalyzers may not accurately detect alcohol levels, potentially putting drivers at risk. The study's findings suggest that even devices with high sensitivity rates may still provide false reassurance about a person's safety to drive.
Experts argue that stethoscopes may become obsolete due to the rapid advancement of point-of-care ultrasound technology, which has improved image quality, reduced cost, and increased portability. The shift towards ultrasound is driven by its ability to diagnose heart and lung problems with greater accuracy than traditional stethoscopes.
A new study published in JAMA found that noninvasive CT scanning technology combined with fractional flow reserve can improve diagnostic accuracy for heart disease. The DeFACTO study involved 252 patients from 17 centers worldwide, showing improved detection of coronary artery disease using this approach.
The CORE320 study demonstrated that combined non-invasive CT angiography and myocardial perfusion imaging has robust diagnostic accuracy for identifying patients with flow-limiting coronary artery disease. The addition of CTP increased diagnostic power, allowing clinicians to distinguish between anatomic and flow-limiting stenoses.
A new noninvasive diagnostic test using computed tomographic angiography and computational fluid dynamics has demonstrated improved accuracy for detecting ischemia in patients with suspected or known coronary artery disease compared to CT angiography alone. The test, known as FFRCT, showed high sensitivity and negative predictive value...
A Dutch study of nearly 90,000 women found that liquid-based cytology is not superior to the conventional Pap test for detecting cervical cancer precursors or cancer. The study's findings provide strong evidence that liquid-based cytology performs similarly to the traditional Pap smear in a well-organized screening program.
A new study published in Radiology found that digital mammography is more accurate than film mammography for women under 50 with dense breasts. The Digital Mammographic Imaging Screening Trial (DMIST) compared the accuracy of both methods in different subgroups, confirming improved diagnostic accuracy for digital mammography in pre- an...
A new study found that high intracoronary attenuation significantly improves diagnostic accuracy in 64-slice CT-CA of the coronary arteries, with sensitivity and specificity rates of 91% and 93%, respectively, for low attenuation groups and 96% and 97%, respectively, for high attenuation groups.
A study analyzing 487 primary studies found that medical test accuracy is often overestimated, particularly in detecting mild or early disease. The researchers emphasize the importance of knowing test accuracy in real clinical settings and the accuracy of gold standard tests to ensure accurate diagnoses.
A German-developed expert system enhances the diagnostic accuracy of Alzheimer's disease using FDG PET scans. The system, which was tested in 150 cases, helps inexperienced physicians diagnose Alzheimer's and differentiate it from other dementia disorders.
A meta-analysis of 35 studies found CT colonography to have a high sensitivity and specificity for detecting polyps and colorectal cancer, making it a promising alternative for screening. The study's findings suggest that CT colonography could increase patient compliance and improve early detection rates.