Articles tagged with Radiology
Researchers found that follow-up PET scans showed persistent tumor activity in seven out of eleven RFA treatments. This suggests that FDG-PET is a more accurate method for evaluating tumor destruction than CT alone.
A study of 157 women with acute pelvic pain found that both CT scans and ultrasounds were highly sensitive and accurate in diagnosing the condition. The researchers concluded that patients are unlikely being over-imaged, and that both imaging techniques can be used effectively in emergency settings.
Varicose veins affect 75-150 million people worldwide and traditional therapy involves costly surgery. Vascular Insights aims to reduce convalescence, complications, and pain with a single, disposable product for elimination of varicose veins.
A new automatic system at the Ann Arbor VA hospital kept eight patients with serious scan results from falling through the cracks, including five who had cancer. The system, which uses electronic tags to alert doctors to potential problems, was developed after a similar issue occurred at the institution.
A study by Dr. Ivan Pedrosa and colleagues demonstrates MRI as a viable alternative to CT scans for diagnosing appendicitis in pregnant women, sparing them from radiation exposure. The study evaluated 51 pregnant women with abdominal pain using MRI, revealing four cases of acute appendicitis, two of which were not detected via ultrasound.
The study revealed that radiologists can use four radiologic signs to prospectively identify radial meniscal tears, increasing detection sensitivity from 37% to 89%. Repairing damaged cartilage is preferred over removal when possible.
A large UK radiology department produces 150,000 to 300,000 reports annually. Radiologists can identify clinically important reports and enhance patient care through effective communication of critical radiology reports. Delayed or ineffective reporting often leads to bad outcomes for patients and costly lawsuits for radiologists.
A new study using bone SPECT test shows that the test can identify patients with lower back pain who would benefit from facet joint injections, leading to significant pain reduction and cost savings. The test can help doctors avoid unnecessary injections in patients who may not respond well to them.
Researchers have developed a new method of lie detection using brain MRI, which can accurately identify deception in 92% of cases. The test measures brain activity, eliminating the limitations of traditional polygraph tests.
Researchers have discovered that compressing digitized mammograms using file-compression techniques improves their interpretability by radiologists, allowing for remote screenings in underserved communities. The compression method retains essential features that are crucial for cancer diagnosis.
Researchers developed a noninvasive ultrasound treatment that immediately stops blood flow in fibroid tissue, leading to significant symptom relief for up to 12 months. The optimized protocol allows for treatment of larger fibroid volumes, resulting in greater symptomatic relief and quality of life improvement.
A new CT-guided injection treatment has been found to be highly effective in treating palmar hyperhidrosis, a condition that affects up to three out of every 100 people in the US. The procedure involves injecting medication into nerve tracts and nodes, resulting in immediate successful results for 47 out of 50 patients.
A study using virtual colonoscopy with computer-aided detection (CAD) found that CAD improved the performance of virtual colonoscopy by reducing perceptual error in interpreting large numbers of images. The technology detected polyps in 89.3% and 85.4% of patients with polyps 10mm and 8mm or larger, respectively.
A study of over 300,000 medical procedures in Winnipeg found that high-income individuals were significantly more likely to receive diagnostic imaging services. The differences in access varied by procedure and patient illness level, highlighting the need for social policy interventions to address healthcare disparities.
A study has found that EBCT scans can detect congenital abnormalities, including coronary artery anomalies, more accurately than traditional catheter angiography. This is especially important as it helps identify patients at risk of a heart attack or sudden death.
A new study found that a computer-aided mammography detection system increased the detection rate of small invasive cancers by 164% in younger women. The CAD system helped detect these cancers more than five years earlier than without it.
A study published in American Journal of Roentgenology found that 3D MRI can detect pancreatic cancer in patients with severe mid-abdominal pain and other symptoms. The study suggests that radiologists should look for pancreatic cancer even if the patient didn't have an examination for that purpose.
Researchers found that patients with late-onset dementia had lower cerebral blood flow and more brain damage compared to healthy young individuals. The study suggests that decreased blood flow may cause some types of dementia.
The program provides hands-on research experience and networking opportunities for biomedical engineering students. Students work with medical professionals to apply their research in a professional setting.
A recent study found that virtual colonoscopy can detect extracolonic abnormalities in 63% of patients, with clinically important findings detected in 9%. The procedure is potentially cost-effective and can be used to screen for other conditions as well.
A study found that 45 out of 500 virtual colonoscopy patients had clinically important extracolonic findings, including kidney cancers and abdominal aortic aneurysms. The study suggests that virtual colonoscopy may be more effective at detecting diseases outside the colon than in the colon.
MR spectroscopy enhances breast imaging by identifying chemical compounds in tumors, leading to increased cancer detection rates (94-100%) and improved accuracy (57%). This adds value to existing MR exams, reducing unnecessary biopsies and improving patient outcomes.
A study of 497 emergency room patients found that repositioning during CT scans improved image quality for multiple trauma cases. By reorienting the patient's body position, artifacts caused by arms, electrodes, and cables were minimized, resulting in comparable image quality to routine imaging.
A study of 124 radiologists found that concerns about medical malpractice led to a significant increase in recommendations for breast biopsies and diagnostic testing. The majority of women who undergo additional testing after a screening mammogram do not have cancer, highlighting the need to balance detection rates with patient anxiety.
Acute respiratory distress syndrome (ARDS) can be predicted using PET scans in trauma patients, allowing for early treatment with aggressive immune modulation therapy. This method has the potential to reduce mortality rates and improve patient outcomes.
Larson, a leading expert in targeted radiotherapy and molecular imaging, has made significant contributions to the advancement of positron emission tomography (PET) as a clinical tool for oncology. His research has led to novel findings in cancer understanding and treatment.
A study published in the American Journal of Roentgenology found that CT scans significantly reduced the need for appendectomies from 20% to 3% at an urban hospital. The technology's accuracy in imaging the appendix and detecting mimic conditions led to a dramatic decrease in unnecessary surgeries.
A new study by Massachusetts General Hospital found that imaging costs contribute to only about 10% of overall hospital expenses. Despite a significant increase in imaging studies during the study period, the cost of these procedures remained relatively stable.
A study by Dr. Linda Tang found that radiology residents can reliably interpret head CT scans for initial triaging of acute stroke patients, achieving a 97% agreement rate with attending physicians. The results have affected hospital protocol and require certification prior to taking call.
A new sonic flashlight device allows physicians to visualize ultrasound images during catheter placement, making the procedure faster and more efficient. This innovation has the potential to increase patient safety, decrease costs, and improve patient comfort, enabling medical personnel to perform procedures with greater ease.
A new CAD system has improved the accuracy of breast MRI analysis, allowing radiologists to better determine cancer lesion sizes. The system reduced analysis time by an average of 7 minutes compared to standard software.
A recent study suggests that chest CT scans can be used to identify patients who have had a heart attack. The study found that normal heart muscle enhancement is reduced in patients who have had a recent heart attack, making it possible for radiologists to look for this sign as the first step in identifying a potential heart attack. Fu...
A study of 23 pancreatic biopsies found ultrasound-guided biopsies to be effective in obtaining adequate samples, with a diagnosis possible in 61% of cases. The procedure is easier on patients than traditional endoscopic biopsies, which require sedation and are less efficient.
A new MRI technique called isotropic imaging shows promise in detecting meniscal tears and other knee injuries, potentially avoiding knee surgery altogether. With an accuracy rate of 96%, the technique could be used to determine if patients need immediate surgery or can benefit from rehabilitation first.
A six-week study found that video replay of teaching rounds significantly improved radiology residents' case-based knowledge and communication abilities. The study used videotaped feedback to help residents develop awareness of their strengths and nonverbal skills, reducing anxiety and improving board exam performance.
The US topped global rankings for high-tech imaging, with the highest per capita use of MR and CT. In contrast, India, China, and Indonesia had the lowest usage of these technologies.
Researchers successfully transmitted ultrasound images from Yugoslavia to the US using compressed files, with radiologists able to diagnose patients accurately in 67% of cases. The study aims to expand access to medical technology globally, particularly in areas without internet access.
A recent study found that chest CT scans are necessary for multiple trauma patients, even if initial X-ray results appear normal. The study analyzed data from 563 patients and revealed that X-rays missed 40% of clinically significant thoracic injuries.
Researchers successfully transmitted ultrasound images over phone lines, demonstrating feasibility for real-time diagnosis in resource-poor settings. The study showed that compressed images were comparable to non-compressed ones in terms of diagnostic accuracy, paving the way for expanded healthcare access.
A study by Dr. Sughra Raza found that digital mammography reduced call-back rates by 1.2% compared to conventional films, resulting in lower patient anxiety and associated costs. The switch from conventional to digital mammography also led to a decrease in patients needing additional imaging tests.
Researchers found that coated stents were better at keeping blood vessels open in cirrhosis patients, with improved survival rates and fewer interventions needed. The study analyzed data from 93 patients who underwent a successful TIPS procedure using either coated or non-coated stents.
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.
A new breast shield designed to reduce radiation dose to female breasts during chest CT scans has been developed, with results showing a 43-73% reduction in radiation exposure. The shield is lightweight, comfortable, reusable and can be used for both routine chest CT examinations and CT angiography.
Researchers discovered non-coronary findings in 60 patients via heart CT scans, including lung cancer and aneurysms. Radiologists' training is crucial for early disease management and improved patient prognosis.
A new electronic exhibit developed by Andrea Walker and Vesna Kriss aims to help radiologists confidently diagnose child abuse using imaging techniques. The exhibit highlights red flags such as fractures in different stages of healing, posterior rib fractures, and long bone fractures in children who are not walking.
Researchers found non-heart abnormalities in 61% of patients who underwent CTCA scans, including lung cancer, emphysema, and fluid buildup. The study emphasizes the need for a team-based approach to reading these scans, with both radiologists and technologists requiring specialized training.
A recent study has found Botox to be highly effective in treating severe drooling in children with neurologic conditions. The procedure was successful in approximately 70% of the tested patients, resulting in significant improvement without any serious side effects.
New CT scan technology uses multiple planes to improve diagnostic accuracy and efficiency, reducing reading time by up to 40%. The approach increases confidence in diagnoses, particularly for complex cases like metastatic tumors.
A recent study has found that CT angiograms are being performed at a significantly higher rate than necessary, leading to increased radiation exposure for patients. The study, which analyzed data from 2002-2004, showed that the percentage of patients with pulmonary embolism diagnosed using CTA decreased over time.
A study found that Color Doppler sonography speeds detection of necrotizing enterocolitis (NEC) in premature infants, improving survival chances. CDS was more sensitive and specific than abdominal x-rays for determining NEC in newborns.
Researchers used pulsed-HIFU to treat tumors in mice with a reporter gene, achieving nine times higher uptake compared to untreated tumors. The technique has potential for enhanced delivery of therapeutic genes across various tissues without scars or needles.
A 2001-2002 survey of 45 mammography facilities in three states found that 44% did not have enough radiologists on staff, and 46% reported difficulty maintaining qualified technologists. Scheduling delays for diagnostic and screening mammograms were common, with some facilities reporting waits of up to four weeks.
A recent study suggests that CT lung cancer screening may not be as beneficial as previously thought, as many early-stage cancers detected through CT are slow-growing and unlikely to have been fatal. The study found that unnecessary surgical procedures and expenses were also significant drawbacks.
A study found that Computer-Aided Detection (CAD) systems can effectively detect small and subtle breast cancers, with a sensitivity of up to 92% for lesions of 5 mm or less. CAD also helps reduce missed cancers and positively impacts breast cancer prognosis without increasing patient recall rates.
Researchers analyze brain case of 3-foot-tall Hobbit, finding few similarities to microcephalics and pygmies. The findings support the theory that the fossil is a member of a unique ancestral species, Homo floresiensis.
A recent study suggests that whole-body CT screening for cancer and other diseases is not a cost-effective use of healthcare funding. The procedure's estimated $2,513 cost per patient yields only minimal gains in life expectancy, making it more expensive than many other interventions.
Researchers found that indirect CT venography increases the detection rate of thromboembolic disease by 20% compared to traditional CTPA. The addition of CTV improves diagnosis for patients with pulmonary embolism and deep vein thrombosis, saving lives.
A new computer-aided detection (CAD) system has been developed to detect colon polyps obscured by contrast-enhanced fluid in the colon. The algorithm successfully identified 19 out of 22 polyps in a study involving 17 patients, highlighting its potential to reduce missed diagnoses and lower cancer risk.
A study found that obesity significantly impacts imaging quality and accuracy, particularly for abdominal ultrasound, chest x-ray, and CT scans. The direct cost of incomplete exams has tripled over 15 years, highlighting the need for equipment design changes and technological advancements.
A study found that virtual colonoscopy can detect significant polyps as accurately as conventional colonoscopy, reducing the need for invasive procedures. The research suggests reserving conventional colonoscopy for patients with a higher likelihood of harboring significant polyps.