A new study published in Radiology found that moderate-intensity exercise significantly decreases fat volume in the abdomen, liver, and around the heart in patients with type 2 diabetes. The results suggest that exercise can reduce cardiovascular risk by targeting specific fat deposits.
Researchers found a striking resemblance between white matter brain abnormalities in concussion patients and those seen in early Alzheimer's dementia. The study suggests that the true problem facing concussion patients may be their brain's response to injury, rather than the injury itself.
A study of over 2,000 adults found that increased abdominal aortic wall thickness and plaque buildup are associated with future cardiovascular events. MRI measurements can help identify individuals at risk of these events.
A study published in Radiology found that frequent heading in soccer is associated with white matter microstructural changes and cognitive impairments, similar to those seen in traumatic brain injury patients. Players who headed the ball over 1,800 times per year showed poorer memory scores.
Researchers found that aortic arch pulse wave velocity is a strong predictor of white matter hyperintensities, which are associated with accelerated cognitive decline and Alzheimer's disease. The study used MRI to measure aortic arch pulse wave velocity in 1,270 participants and found a significant association between the two variables.
A new study suggests that digital direct radiography (DR) is significantly more effective than computed radiography (CR) in detecting breast cancer. DR detected 4.9 cancers per 1,000 mammograms, while CR's detection rate was 21% lower, with 3.4 cancers per 1,000 mammograms.
A new study found that MRI atrophy in the thalamus is a strong predictor of multiple sclerosis (MS) development and progression. Thalamic atrophy was associated with increased risk of conversion to clinically definite MS, outperforming traditional methods for evaluating patients at risk.
Research suggests that migraines are related to brain abnormalities present at birth and others that develop over time. Cortical thickness and surface area abnormalities were found in regions related to pain processing, with minimal overlap between the two types of abnormalities.
A single concussion can cause lasting structural damage to the brain, according to a new study. Brain atrophy has been found in patients one year after mild traumatic brain injury (MTBI), which may explain long-term neurological and psychological symptoms. The study also identified specific brain regions affected by MTBI.
A new study found that CT angiography is an effective tool for determining the risk of heart attacks and other adverse cardiac events in patients with suspected coronary artery disease but no treatable risk factors. The test identified a high prevalence of coronary artery disease, even in patients without modifiable risk factors.
A new study published in Radiology found that CT scans are associated with a significantly lower risk of death than radiation-induced cancer in young adults. The study analyzed imaging records of patients 18 to 35 years old who underwent chest or abdominopelvic CT exams between 2003 and 2007.
Researchers used a second-generation 320-detector row CT scanner to significantly reduce radiation exposure in patients undergoing coronary CT angiography. The new system achieved diagnostic-quality scans with low doses of radiation, reducing effective radiation dose by 72% compared to the first-generation unit.
A new study highlights the importance of considering immediate health risks when weighing benefits and potential future radiation-induced cancer risks. The researchers found that for patients with testicular cancer undergoing CT surveillance, the near-term risk of death from the condition was more significant than lifetime cancer risk.
A new study published in Radiology found that cerebral angioplasty and stent placement can be an effective treatment for stroke patients, with a significant improvement in outcomes compared to no additional therapy. The procedure was shown to improve symptoms and quality of life for approximately 43.5% of patients.
A combination of diagnostic tests, including MRI, PET and cerebrospinal fluid biomarkers, can improve the prediction of conversion from mild cognitive impairment to Alzheimer's disease. The study found that combining these tests reduced false classifications and increased accuracy compared to clinical testing alone.
Researchers found that men with higher visceral and total abdominal fat had lower failure load and stiffness, two measures of bone strength. Muscle mass was also positively associated with bone strength. The study suggests that excess belly fat is a risk factor for bone loss in obese men.
A study finds that most patients who have undergone imaging exams know little about radiologists, with only 53.5% aware they are physicians. Radiologists now see an opportunity to educate the public about their role in healthcare.
Researchers found that African-American patients with coronary artery disease have significantly less fat around their hearts compared to Caucasian patients. The study suggests that epicardial adipose tissue may act as a protective buffer, contributing to lower risk of acute coronary events.
Researchers have found that mountain climbers who develop a severe form of high-altitude cerebral edema (HACE) are at risk for microbleeds in the brain years after their initial incident. The condition can cause swelling of brain tissue due to fluid leakage from capillaries, leading to symptoms like headaches and loss of coordination.
A study of 250,000 women found that repeated CT and nuclear imaging increased breast cancer risk, especially in younger patients. The risk was highest among young women who received multiple scans, with estimates suggesting a 20% increase in 10-year breast cancer risk.
Researchers found that doses from mammography scatter radiation are negligible and do not increase cancer risk. The use of thyroid shields is unnecessary due to the extremely low dose received by the gland.
Two studies presented at RSNA 2012 found that revised guidelines for screening mammography may lead to a decline in screening, potentially resulting in missed cancers. The new recommendations, issued by the USPSTF, recommend routine screening every two years for women 50-74 years old.
A study identified a pattern of frequent injuries, including facial trauma, dental trauma, and brain hemorrhages, among abused elderly patients. Radiologists can use these findings to aid in identifying potential cases of elder abuse, which is often neglected compared to child abuse.
A survey of women with dense breasts found that many would pursue additional screening if notified of their breast density. The study highlights the need for patient education regarding breast density and available alternative technologies to aid in screening.
A study using PET/CT imaging found statistically significant decreases in regional brain metabolism associated with symptoms of chemo brain phenomenon. Researchers hope to establish a prospective study to improve treatment for patients experiencing this debilitating condition.
A study found that an active lifestyle can preserve gray matter in older adults' brains, reducing the burden of dementia and Alzheimer's disease. The research suggests that a combination of lifestyle choices, including aerobic physical activities, may alleviate brain aging.
Researchers used MRI to image patients with mild traumatic brain injury and found that some brains compensate for damage by changing water flow patterns. This compensation is associated with fewer post-concussion symptoms and higher functioning, suggesting a potential new approach to treating traumatic brain injury.
Researchers found that both high and low levels of physical activity can lead to accelerated degeneration of knee cartilage in middle-aged adults. The study suggests that finding an optimal level of physical activity may help preserve cartilage health.
A study found that women with Alzheimer's disease exhibit greater gray matter loss in the brain compared to men, with differences observed in regional atrophy patterns. This discovery has important implications for the development of therapies for mild cognitive impairment and Alzheimer's disease.
A study found that exercise programs on stationary bicycles improve Parkinson's disease symptoms, with faster pedaling leading to greater brain connectivity and motor ability improvements. The therapy is low-cost and effective, even for patients who don't need forced-rate exercise.
A new study found that frequent cognitive activity in late life is associated with higher diffusion anisotropy values in the brain, indicating better microstructural integrity. The research suggests that keeping the brain occupied can have positive outcomes and may help maintain brain health in older adults.
A new study reveals that fetal alcohol exposure alters brain structure and metabolism in children, with MRI techniques showing statistically significant thinning of the corpus callosum. Diffusion weighted imaging also detected increased diffusion, indicative of neurological disorders or brain damage.
Researchers discovered changes in brain connectivity after mild traumatic brain injury (MTBI), which may lead to improved diagnosis and treatment of post-concussion syndrome. The study found decreased functional connectivity in the posterior network of the brain, correlated with neurocognitive dysfunction.
A new breast imaging technology, tomosynthesis, significantly improves radiologists' diagnostic accuracy and reduces false positive recall rates when combined with standard digital mammography. The study found a 10.7% increase in diagnostic sensitivity and a 38.6% reduction in absolute recall rates.
A new digital mammography technique has been shown to improve the accuracy of breast cancer screening, reducing both false positive findings and recalls. The stereoscopic method uses a unique workstation and polarizing lenses to identify lesions at different depths within the breast volume.
A new MRI technique has shown promise in identifying early-stage coronary disease, which can be treated with lifestyle changes and medications. The study used time-resolved multi-frame acquisition to measure coronary artery wall thickness with a high success rate and precise measurements.
A new study from the Netherlands found that digital mammography improves breast cancer screening detection rates, particularly for high-grade lesions. While there was a slight increase in clinically insignificant disease diagnoses, the benefits of digital mammography outweighed the risks.
A novel MRI technique using diffusion-weighted imaging (DWI) successfully characterizes 46% of non-malignant breast lesions as benign, reducing false-positive findings and preventable biopsies. DWI differentiates high-risk lesions requiring additional workup from other non-malignant subtypes.
A new MRI study reveals that vein abnormalities do not contribute to multiple sclerosis (MS) severity and are not specific to the disease. Despite previous speculation, the researchers found no correlation between cerebral blood flow and MS symptoms.
Researchers at Mayo Clinic discover leukoaraiosis is a disease that alters brain function, affecting language processing and network activity. Moderate levels of the condition lead to decreased activation in key areas, while high blood pressure may also play a role.
A new study published in Radiology found that sodium accumulation in the brain correlates directly with disability in multiple sclerosis patients. The research used 3 Tesla sodium MRI to detect abnormal sodium concentrations in specific brain regions and throughout the whole brain.
Researchers found a strong link between post-stroke depression and brain network impairment, specifically in the default-mode network (DMN), which is involved in emotional regulation. The study suggests that functional brain impairment may be more critical than structural lesions in predicting depression severity.
A new study shows that Breast MRI provides an indication of a breast tumor's response to pre-surgical chemotherapy significantly earlier than possible through clinical examination. MRI size measurements were superior to clinical examination at all time points, predicting both complete tumor response and residual cancer burden.
A multicenter study found that the Breast Imaging and Reporting Data Systems (BI-RADS) terminology used by radiologists is useful in predicting malignancy in breast lesions detected with MRI. Features such as irregular shape, spiculated margins, and marked enhancement are most predictive of cancer.
A new study found that contrast-enhanced ultrasound is a highly effective method for monitoring patients after endovascular repair for abdominal aortic aneurysms. The technique offers real-time exploration without ionizing radiation or kidney damage, supporting its integration in EVAR follow-up.
A study found that CT exams increased among pediatric patients with non-traumatic abdominal pain in emergency departments from 1999 to 2007, while ultrasound use remained stable. This trend is concerning due to the potential risks of radiation exposure on children.
A new study published in Radiology journal reveals that lung cancers diagnosed through annual rounds of computed tomography (CT) screening exhibit similar growth rates and cell-type distributions compared to those found in clinical practice. The findings suggest a less aggressive approach for diagnosis and treatment of sub-solid lesions.
Researchers have developed a new MRI technique that significantly improves the detection of pulmonary embolism, a potentially life-threatening condition. The addition of two magnetic resonance imaging sequences to a common MR angiography technique boosts detection rates to 84%, reducing the need for ionizing radiation and contrast agents.
Prolonged space travel has been found to cause brain and eye abnormalities in astronauts, similar to those seen in intracranial hypertension of unknown cause. MRI scans revealed optic nerve expansion, eyeball flattening, and pituitary gland changes in astronauts exposed to microgravity for extended periods.
A new study published in Radiology found that computed tomography (CT) colonography, also known as virtual colonoscopy, is an effective screening tool for colorectal cancer in adults over 65. The study analyzed data from 477 patients over 65 and found high diagnostic accuracy rates comparable to those for younger patients.