Articles tagged with Magnetic Resonance Imaging
Researchers used MRI to show that a 90-degree sitting position causes more strain on the spine than an optimal 135-degree posture. This finding could help prevent back pain by advising patients to correct their sitting posture.
Whole-heart MRI technology has advanced to detect heart disease more effectively, reducing motion blurring and improving image quality. The study found that the technique was accurate in detecting significant narrowing of coronary arteries in 87% of patients.
Researchers used MRI to detect small areas of heart damage in patients with sarcoidosis, finding that it was twice as sensitive as conventional methods. The study suggests that cardiac damage is common and often unrecognized in these patients, which can lead to serious complications.
Researchers at Yerkes National Primate Research Center use MRI to capture images of the retina's elusive layers, revealing layer-specific changes in retinitis pigmentosa. This breakthrough technology has potential for early diagnosis and treatment of serious eye diseases.
Researchers at St. Jude Children's Research Hospital use MRI to track muscle damage from radiation therapy in children with soft tissue cancer. The study reveals that changes in muscle images can predict the amount of long-term damage that radiation may cause, enabling clinicians to design better treatment plans.
A new study uses MRI techniques to discriminate between patients who will benefit from clot-dissolving drugs and those who may be harmed. The technique helps doctors make informed decisions about treatment timing, potentially improving patient outcomes.
Researchers have developed a remote-control mechanism for controlling an MRI machine via the internet, resulting in superior image quality compared to traditional onsite scanning. This technology enables specialized skills in MRI to be implemented remotely, improving patient care and accessibility.
A new software program developed by UCLA radiologists and Siemens Medical Solutions allows experts to operate MRI machines remotely via the Internet. The quality of remote scans was found to be superior to onsite scans performed by less experienced technologists, offering options for regions with limited medical staff and expertise.
Researchers developed a new technique called HYPER-CEST for Magnetic Resonance Imaging that can detect molecules at lower concentrations, enabling better medical diagnosis and treatment. This method uses hyperpolarized xenon signals to generate highly selective contrast and provides both spatial and biochemical information.
The University of Minnesota's Center for Magnetic Resonance Research (CMRR) has received a $7.9 million NIH grant to expand its neuroscience research capabilities. The grant will enable more university researchers to access the center's state-of-the-art magnetic resonance equipment and methodology.
The study on MRI and CT imaging technology will investigate the relationships between availability, usage, patient outcomes, and health care spending. The device development study will document the regulatory and commercialization processes for new medical technologies.
A study found that maternal infection during pregnancy and very preterm birth are associated with an increased risk of cerebral palsy. Brain MRI scans also revealed white-matter damage as the most common finding in children with cerebral palsy, with strong correlations between clinical findings and brain scan results.
A four-year project aims to dramatically improve scanning for serious illnesses by enhancing electron spin resonance imaging techniques. The technology could provide 10,000 times more spatial information, recording images 10,000 times faster, and improve sensitivity by 100 times or more.
A new analysis technique identifies cellular damage in the brain, allowing for earlier diagnosis and intervention of Alzheimer's disease. The study found increased water content in white-matter areas and brain atrophy in patients with mild cognitive impairment.
Researchers found that more people with AIDS died from common causes in 2004 compared to 1999. A survey of gay men revealed a significant gap between self-identified straight men who have sex with men and their actual behavior.
Researchers from Massachusetts General Hospital successfully tracked transplanted pancreatic islets using MRI, revealing complex factors behind islet loss and potential causes of rejection. The study could lead to improved outcomes for patients with type 1 diabetes.
Mayo Clinic researchers have developed MR Elastography (MRE), a new technique for measuring liver elasticity using MRI. This non-invasive method shows great promise for detecting liver fibrosis, which can lead to cirrhosis if left untreated.
Researchers at Lawrence Berkeley National Laboratory have developed a novel laser-based MRI technique that offers enhanced sensitivity and time resolution. The approach uses atomic magnetometry and separates signal encoding and detection steps, enabling optimized sensitivity and reducing costs.
A new study shows MRI is better than MDCT for determining breast cancer's intraductal component, allowing surgeons to achieve a cancer-free surgical margin. MRI correctly identified 33 of 44 cases with an intraductal component, outperforming MDCT in sensitivity and underestimation accuracy.
Researchers at Penn's Department of Radiology will utilize a new 7 Tesla whole-body Magnetic Resonance Imaging (MRI) system for high-field imaging. The ultra-high field magnet will improve sensitivity, speed, and image resolution, enabling detection of disease in ways never seen before.
Researchers used MRI scans to identify white matter and gray matter abnormalities in pre-term infants' brains, predicting risk of cognitive delays, cerebral palsy, and other neurodevelopmental challenges. The study found that nearly half of children born prematurely suffer some form of developmental delay.
The NIH is providing funding for cutting-edge research equipment to advance biomedical research and increase knowledge of the underlying causes of human disease. High-end instruments supported include supercomputers, nuclear mass resonance spectrometers, magnetic resonance imaging systems, and cryo-electron microscopes.
A new MRI data-acquisition technique developed at the University of Wisconsin-Madison enables clinics to image more patients with osteoarthritis-related knee problems in a shorter time. The technique delivers precise 3D images, allowing for better diagnosis and treatment options.
A study found that obesity significantly impacts diagnostic imaging quality and diagnosis, leading to misdiagnosis or failed diagnoses. The impact is particularly pronounced on exams requiring radiation exposure, such as CT scans and x-rays.
A new study using MRI scans has found that the drug donepezil slows brain deterioration in patients with mild cognitive impairment, a condition on the road to Alzheimer's disease. The treatment showed a positive effect on patients who carried the APOE 4 allele, which increases the risk of developing Alzheimer's.
Researchers developed a new imaging technique using stress first-pass perfusion MRI with delayed contrast-enhancement, demonstrating an accuracy of 88 percent in detecting coronary artery disease. The non-invasive method can potentially replace traditional angiography and guide clinical decision-making.
Researchers detected subtle changes in left ventricle walls using MRI tagging, showing an association between atherosclerosis and reduced heart pumping function. The study found early signs of atherosclerosis in carotid arteries related to fine changes in heart contraction.
Researchers from NYU's Department of Chemistry and the Department of Radiology have successfully decorated virus particles with gadolinium chelates, resulting in a very intense signal in clinical MRI scans. This study validates hypotheses on the effect of particle size on MRI contrast agent effectiveness.
Researchers at the University of Virginia Health System developed a new test for peripheral arterial disease (PAD) using MR spectroscopy, a technique from the 1970s. The test measures phosphocreatine recovery time in leg muscles after exercise, indicating PAD severity and potential complications.
Researchers developed a new MRI technique using hyperpolarized helium to detect early signs of emphysema in asymptomatic smokers. The technology shows promise for early disease detection, surgical planning, and monitoring patient response to treatments without radiation exposure.
Using MR spectroscopy improves the detection of malignant breast lesions, reducing the need for biopsy procedures. The technology helps identify tumors with elevated choline compounds, which are a marker of an active tumor, and eliminates the need for biopsies to determine their composition.
Researchers at the University of Wisconsin-Madison developed a new approach that tracks helium gas molecules in lungs to detect micro-structural changes in smokers. The technique has shown promise in identifying structural changes in asymptomatic smokers and may help screen for genetic predispositions to conditions like emphysema.
The WPI team will use computational modeling, MRI scans, and histological studies to develop a detailed picture of plaque formation and rupture. This research aims to create better diagnostic tools for physicians to assess the risk of arterial plaques and choose effective treatments.
Research suggests that initiating MS therapy with an immunomodulating drug as soon as possible following a diagnosis can significantly reduce future disease activity and progression of disability. Studies have shown that delaying treatment is associated with more progression of disability and larger volumes of disease damage.
A study found that breast MRI screening can be cost-effective for BRCA1 mutation carriers, particularly when mammography is insensitive. Adding annual MRI from ages 35-54 is cost-effective among all BRCA1 carriers and those with high-risk due to aggressive cancer types
Researchers have developed a new integrated system that combines MRI and NIR imaging to quantify hemoglobin, water, and scattering values in breast tissue. This technique may help detect early tumor growth and characterize tumor stage by learning about its vascular and cellular makeup.
Researchers developed an MRI technique to measure cysts and kidneys in individuals with autosomal dominant PKD. The study found that both small and large cysts grew at steady rates, correlating with losses in kidney function.
Researchers at UI Hospitals and Clinics discovered a fundamental problem in predicting case durations for diagnostic scans under anesthesia. By analyzing experts' estimates, they implemented a solution that significantly improved accuracy and reduced pre-anesthesia fasting times for young patients.
A study found that lobular breast cancer (ILC) and ductal breast cancer (IDC) have similar success rates for breast-conserving therapy. ILC patients had larger tumors, but the success rate did not differ between groups.
A recent study using diffusion tensor imaging found no significant differences in brain integrity and volume between cannabis smokers and non-smokers. The findings suggest that moderate cannabis use may not have a direct impact on brain structure and integrity, but more research is needed to confirm these results.
The University of Washington has licensed its innovative cardiovascular software, CASCADE, to VPDiagnostics. The technology helps clinicians identify 'vulnerable' plaque, which is linked to heart attack and stroke, providing a powerful tool for researchers to study atherosclerosis.
A study analyzed MRIs of 24 patients with ischemic stroke to identify signs at increased risk for skull hemorrhaging. The researchers found that patients with parenchymal enhancement or hyperintense MCA sign may be at higher risk for developing hemorrhagic complications after tPA treatment.
A recent study published in American Journal of Roentgenology found that higher strength MRI can detect shoulder cartilage tears with high accuracy, allowing doctors to diagnose and treat the condition without surgery. This non-invasive approach has significant benefits for patients, especially athletes who are prone to such injuries.
Researchers used gold beads to visualize slow phenomena in the eye, such as growth and fast eye movement. The study showed that three-quarters of the implanted beads remained stable over six months.
Researchers at NYU and Austria have developed a non-invasive imaging technique using nuclear magnetic resonance (NMR) that eliminates the need for external radiofrequency irradiation. This allows for lower energy deposition, enabling new applications in magnetic resonance microscopy.
Researchers have identified two patterns of cognitive impairment in people with AIDS, differing in severity and brain region affected. The study found that while severe dementia has decreased, a milder form of impairment has increased, warranting further investigation into its mechanisms and potential treatments.
A new MRI study found a nearly perfect correlation between iron levels in brain regions and those reported by past post-mortem studies. The study suggests that age-related brain iron accumulation is a modifiable risk factor for degenerative brain diseases, including Alzheimer's disease.
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.
Researchers at McGill University have developed advanced MRI methods to improve detection of brain lesions in epilepsy patients. These new techniques reduce complexity and cost of pre-surgical evaluation, paving the way for more surgical treatment options.
A study published in Annals of Neurology found that brain scans can predict cognitive decline in normal older people, with lower glucose metabolism detected in the parietal and temporal lobes. The scans also predicted declines on memory tests, such as the DelRec test, suggesting a potential link to Alzheimer's disease.
Researchers detected lower gray matter density in brains of patients with Type 1 diabetes, associated with poorer glycemic control and depression. The study opens up new approaches to understanding the central nervous system in diabetes.
Research suggests that chronic drinking and smoking both lead to significant brain structural abnormalities, including reduced gray matter and neuronal injury. Chronic smoking may also hinder recovery during abstinence from alcohol, leading to impaired cognitive function.
Researchers use MRI to visualize individual immune cells in live animals, enabling real-time tracking of organ rejection. The new approach offers personalized care and reduces biopsy procedures.
Researchers at UT Southwestern found that MRI offers more detailed views and specific information on cochlear implants than CT scans. This enables surgeons to determine the best surgical technique, electrode arrays, and ear placement for each patient.
Researchers at Washington University in St. Louis have developed a new technique to image brain deformation after impact, using magnetic resonance imaging (MRI). The study shows that the brain tries to pull away from attachments, leading to significant deformation of the front of the brain.
Researchers found significant brain volume enlargement in children with autism, particularly in white and gray matter, which affects the cerebral cortex responsible for thought, perception, and memory. The study suggests that this enlargement may begin as late as the first year of life, during the postnatal period.
A study by SCCA physicians found that computer-aided evaluation can significantly assist radiologists in accurately interpreting breast MRI studies, improving sensitivity and specificity. The use of CAE resulted in reduced false positive rates and improved accuracy in detecting malignant lesions.
A study of 101 MRI knee exams found a remarkable high incidence of lateral meniscal tears among elite football players, which may be related to the physical demands of tackling. The research also identified an indirect sign of syndesmotic tear, also known as high ankle sprain, using MRI and x-rays.
Researchers used MRI to study canine cranial nerves, enabling earlier disease recognition and imaging of nerve nuclei. The study sheds light on the challenges of identifying small nerves using conventional imaging modalities.
A study of 24 patients found that MRI with an endorectal coil at 1.5T outperforms conventional body coils in staging prostate cancer. The results suggest a need for advances in coil technology to improve imaging at higher field strengths.