Articles tagged with Magnetic Resonance Imaging
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 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.
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.
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.
A new technique successfully tracks the location of injected cells in cancer patients using magnetic resonance imaging (MRI) and iron oxide particles. The study showed that injection accuracy is critical, but not perfect, and that MRI provides an accurate way to track cells' final resting place.
The new criteria allow for an earlier diagnosis of multiple sclerosis with minimal loss of diagnostic accuracy. The revised guidelines also reduce the number of MRI scans required to evaluate disease progression, making it a powerful tool for diagnosing MS and excluding alternative diagnoses.
Researchers at Penn have developed a new method using high-dimensional shape transformations to identify unique structural brain characteristics in schizophrenia patients. The study demonstrates the potential for early detection and prevention of the disease through MRI analysis.
Researchers developed a functional diffusion map that tracks water movement in the brain, predicting tumor response to treatment. This non-invasive method identifies patients who will benefit from second-line therapy and those whose tumors are not responding, allowing for targeted radiation doses.
A study found that moderate exercise can improve knee cartilage strength and elasticity, reducing the progression of osteoarthritis. Regular physical activity has been shown to reduce knee pain and stiffness, as well as improve functional performance tests.
Researchers have developed a nanoparticle that can identify brain tumor cells and selectively target them for radiation therapy. The particles, called functional metallofullerenes, have shown promise in preliminary experiments and may one day benefit patients with advanced brain tumors.
For patients with early-stage breast cancer, MRI improves treatment selection by identifying additional cancer in the breast that may require wider removal of tissue or mastectomy. Breast MRI can help radiation oncologists identify suitable candidates for accelerated partial breast irradiation.
A new study published in Neurobiology of Aging reveals that a computer analysis of the EEG can accurately predict healthy individuals in their 60s and 70s who will develop dementia over the next 7-10 years. The test was found to be almost 95% accurate in identifying those at risk of cognitive decline.
The new imaging technique enables rapid acquisition of three planes, reducing examination time to 12 minutes compared to the standard method. Fetal MRI is being increasingly performed due to its excellent view of brain tissue and lack of radiation, usually done when ultrasound is inconclusive.
William Edelstein's contributions to Magnetic Resonance Imaging (MRI) led to the commercialization of high-resolution imaging technology. His work on the Spin Warp method and other innovations improved image quality and reduced noise, making MRI systems clinically useful.
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.
A recent MRI study has mapped 'silent' heart changes that remodel the heart, linking specific regional changes to early signs of trouble in the left ventricle. The study found that pumping function deteriorates as hearts increasingly change shape or remodel.
Researchers developed a novel MRI strategy to visualize inflammatory lesions in the pancreas that cause type-1 diabetes. This new approach provides preclinical data on mouse models, guiding the application of an in vivo MRI technique to patients with autoimmune diabetes.
MRI cardiac catheterization provides a detailed three-dimensional picture of the heart, enabling interventional cardiologists to see blood vessels inside and out. This technology is already being used to diagnose congenital heart disease in children and has the potential to replace traditional diagnostic catheterization procedures.
Researchers create gadonanotubes by encasing gadolinium in carbon nanotubes, significantly reducing toxicity while boosting effectiveness. The new agents show promising results in tests at Rice, Houston, and Swiss laboratories.
Researchers used diffusion MRI to measure water movement in treated fibroids, showing significant signal intensity and ADC values. This non-invasive technique may improve monitoring of ultrasound treatment success and be useful for other focused ultrasound treatments.
A recent study published in the American Journal of Roentgenology found that MRI is more comprehensive than SPECT in assessing heart damage in patients with hypertrophic cardiomyopathy. MRI was able to detect small areas of heart damage and provide important data on cardiac function, whereas SPECT only became relevant if no abnormaliti...
A new contrast agent enables quicker and more thorough MRI screenings for potential living liver donors. The study found that this agent can image the liver, bile duct, and vessels simultaneously, reducing the need for separate examinations.
MDCT arthrography outperforms MRI in detecting cartilage problems, offering better 3D evaluation and tissue contrast. The study suggests MDCT arthrography as a prominent method for imaging patients with hip dysplasia.
A study found that Lorenzo's oil therapy can prevent MRI abnormalities and neurological symptoms in patients with asymptomatic ALD. The treatment reduced saturated very long-chain fatty acid levels, which may protect against inflammatory cerebral disease.
A recent study published in the American Journal of Roentgenology found that contrast-enhanced MRI is more accurate than FDG-PET in detecting liver tumors, especially for smaller lesions. The study analyzed 79 liver tumors and showed an accuracy rate of 75.5% for MRI versus 64.1% for PET.
Researchers used a non-invasive MRI technique to distinguish between Alzheimer's disease and frontotemporal dementia. The study successfully differentiated between the two conditions using arterial spin labeling, which measures blood flow in the brain.
A study of 58 breast cancer patients found that initial tumor volume and changes in tumor volume during chemotherapy are strong predictors of recurrence-free survival. MRI measurements can help tailor treatment strategies for individual patients.
A Mayo Clinic case series reveals a link between long-term welding and neurological impairment, including Parkinsonian syndrome, multifocal myoclonus, vestibular-auditory dysfunction, and mild cognitive impairment. The study emphasizes the importance of adequate fume protective measures to prevent damage from manganese exposure.
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 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.
Researchers have developed a whole-body MRI technique that can scan patients' entire bodies in under 20 minutes for cancer spread to bone, detecting 100% of cases. This method offers better sensitivity and specificity than other methods, making it a promising tool for non-invasive cancer diagnosis.
Research found that MRI was nearly twice as sensitive as X-ray mammography in detecting breast cancer in high-risk women. Combining both methods increased detection to 94%. Women with the BRCA1 gene mutation saw a significant boost in tumor detection, making MRI an effective screening tool.
Researchers use ferritin as a reporter gene to track genetic modifications in tumor cells, enabling monitoring of gene therapy's progress. This technique has far-reaching implications for diseases like diabetes, where genes can be tagged and tracked using MRI.
Researchers found that leptin replacement treatment altered brain structure and reduced cravings for people with an obesity gene. The study suggests new potential treatments for weight-related issues.
Researchers used brain imaging to map abnormalities in living patients with Williams syndrome, showing exceptional language skills. The findings shed light on the genetic control of human cortex development and help predict the syndrome's progression.
Researchers developed a functional diffusion map using MRI scans to track water diffusion in the brain, finding that changes predicted tumor response 10 weeks before traditional techniques. This method could spare patients from ineffective treatment and allow doctors to switch to more effective therapies.
UNH has launched its second spinout company, Xemed LLC, backed by three new NIH grants to commercialize a lung imaging technology that could benefit millions suffering from chronic obstructive pulmonary disease. The technology allows MRI to produce a clear picture of the lungs' interior, enabling doctors to see which parts are affected.
Researchers created a platform technology that can be adapted for various tissue types and preclinical uses, enabling real-time monitoring of gene expression. This approach uses magnetic resonance imaging (MRI) to non-invasively image cells at high resolution, providing insights into disease mechanisms.
Johns Hopkins researchers have found that modern implanted heart devices are safe for use in magnetic resonance imaging (MRI) machines. The team has also developed new guidelines for their use, making MRI scans more available to people who may benefit from early detection of cancer and other diseases.
New Jersey Institute of Technology's start-up company Supertron has developed a cryogenic coil to improve Magnetic Resonance Imaging (MRI) scanners for small animal imaging. This new coil will enhance installed MRIs, enabling them to produce cleaner and clearer images at an affordable price.
A UW-Madison study found that autistic children's amygdalas light up during non-threatening face gazing, stunting brain activity in the fusiform region. This challenges existing notions of facial processing in autism, suggesting a more complex relationship between social interaction and brain function.
A study by American College of Radiology found MRI to be useful in assessing suspected breast cancer patients, detecting additional cancers not visible on mammography or sonography. The use of computer-assisted diagnosis improved accuracy and led to recommended mastectomies for some patients.