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What Is An Ultrasound?
An ultrasound scan, also referred to as a sonogram, diagnostic sonography, and ultrasonography, is a device that uses high frequency sound waves to create an image of some part of the inside of the body, such as the stomach, liver, heart, tendons, muscles, joints and blood vessels. Experts say that as sound waves, rather than radiation are used, ultrasound scans are safe...
Aortic Aneurysm Treatment Monitored By Contrast-Enhanced Ultrasound
Contrast-enhanced ultrasound is an effective, noninvasive method for monitoring patients who undergo endovascular repair for abdominal aortic aneurysms, according to a new study published in the journal Radiology. "Our findings support the addition of contrast-enhanced ultrasound as a complementary tool in the follow-up of these patients," said Rosa Gilabert, M.D., Ph.D...
Breast Imaging And Reporting Data Systems, And MRI In Predicting Breast Cancer: Study
A large, multicenter study found that the Breast Imaging and Reporting Data Systems (BI-RADS) terminology used by radiologists to classify breast imaging results is useful in predicting malignancy in breast lesions detected with MRI. Results of the study are published online in the journal Radiology...
Additional Malignancies Detected By Pre-Op MRI In Dense & Non-Dense Breasts
Newly diagnosed breast cancer patients should undergo a preoperative MRI exam even if their breasts are not dense, a new study indicates. The study found no difference between the usefulness of 3T breast MRI in detecting additional malignancies and high risk lesions in dense versus non-dense breasts...
Questioning The Necessity Of 6 Month Follow-Up Of Patients With Benign MRI-Guided Breast Biopsies
Short term follow-up of patients who have had a negative (benign) MRI-guided vacuum assisted breast biopsy may not be necessary, a new study indicates. The study, conducted at Yale New Haven Hospital in Connecticut, included 144 patients with 176 lesions that were followed anywhere from three months to 36 months...
Wouldn't You Like To Know What Your Dog Is Thinking? Brain Scans Unleash Canine Secrets
When your dog gazes up at you adoringly, what does it see? A best friend? A pack leader? A can opener? Many dog lovers make all kinds of inferences about how their pets feel about them, but no one has captured images of actual canine thought processes - until now...
Dissection Necessary For Breast Cancer Patients With Positive Ultrasound Guided Axillary Node Biopsy
Contrary to a trend in treatment, breast cancer patients with suspicious lymph nodes should have an ultrasound-guided axillary node biopsy, and if that biopsy is positive these patients should undergo an axillary dissection, a new study shows...
Physician Interpretation Time Dramatically Reduced By Automated Breast Ultrasound
Automated breast ultrasound takes an average three minutes of physician time, allowing for quick and more complete breast cancer screening of asymptomatic women with dense breast tissue, a new study shows. Mammography misses more than one-third of cancers in women with dense breasts, said Rachel Brem, MD, lead author of the study...
Imaging Agent Flutemetamol Presented At Neurology Meeting
Flutemetamol is a GE Healthcare PET imaging agent currently being developed for the detection of beta amyloid. The study demonstrated a high sensitivity and specificity of both biopsy and autopsy study images. There was also a strong concordance between Alzheimer's disease-associated beta amyloid brain pathology and [18F]flutemetamol PET images...
Nanotechnology That May Enhance Medication Delivery And Improve MRI Performance
Researchers at Harvard-affiliated McLean Hospital have shown a new category of "green" nanoparticles comprised of a non-toxic, protein-based nanotechnology that can non-invasively cross the blood brain barrier and is capable of transporting various types of drugs...
When Abdominal Ultrasound Inconclusive, Follow-Up CT Often Effective
About one-third of CT examinations performed following an inconclusive abdominal ultrasound examination have positive findings, according to a study of 449 patients at Massachusetts General Hospital in Boston...
MRI Not Recommended For Patients With Pacemakers
Great care should be taken when performing magnetic resonance imaging (MRI) in patients with a cardiac pacemaker. Henning Bovenschulte and his co-authors review recent findings in the latest issue of Deutsches Arzteblatt International (Dtsch Arztebl Int 2012; 109[15]: 270-5)...
Using PET And CT To Predict Heart Attack
Almost 2.7 million people in the UK suffer from coronary heart disease (CHD), which kills 88,000 people every year, most of these being caused by heart attacks. Every year, about 124,000 heart attacks occur in the UK...
Bacteria-Tainted Ultrasound Gel Seized By FDA
The FDA informs that US Marshals have seized Other-Sonic Generic Ultrasound Transmission Gel after laboratory analyses found samples contained two strains of bacteria, Pseudomonas aeruginosa and Klebsiella oxytoca. The gels were seized from Pharmaceutical Innovations Inc. in Newark, New Jersey, and included lots manufactured between June 2011 and December 2011 (all lots)...
Dementia Progress Predicted By New MRI Technique
In the March 22 edition of Neuron, researchers at the San Francisco VA Medical Center and the University of California, San Francisco, reveal that a new magnetic resonance imaging (MRI) technique based on whole-brain tractography that maps the "communication wires" (neural pathways) that connect different regions of the brain, may predict the rate of progression and physical ...
Human Brain Understood In Simple Statistical Model
By modeling the trade-off between two competing ways of making useful connections, a team of UK and US scientists has created a remarkably complete statistical picture of the human brain's complex network. They suggest the simple mathematical model not only helps us better understand healthy brains, but also offers unique insights into schizophrenia and similar disorders...
ORNL Microscopy Inspires Flexoelectric Theory Behind 'Material On The Brink'
Electron microscopy, conducted as part of the Shared Research Equipment (ShaRE) User Program at the Department of Energy's Oak Ridge National Laboratory, has led to a new theory to explain intriguing properties in a material with potential applications in capacitors and actuators...
Amyvid For PET Scans For Alzheimer's Detection Approved By FDA
Amyvid (Florbetapir F 18 Injection), a medication for PET (Positron Emission Tomography) brain scans of adults, which estimates brain amyloid plaque content in patients with cognitive decline, has been approved by the Food and Drug Administration. Cognitive decline occurs when the patient finds it harder to think and form clear, rational thoughts, as well as making decisions...
Endoscopic Ultrasound Best Detects Pancreatic Lesions Common In People At High Risk For Hereditary Pancreatic Cancer
A team of scientists led by Johns Hopkins researchers have found that more than four in 10 people considered at high risk for hereditary pancreatic cancer have small pancreatic lesions long before they have any symptoms of the deadly disease...
Mammography Plus Additional Screening Better For Breast Cancer Detection
A study published in the April 4 issue of JAMA reveals that ultrasound screening or magnetic resonance imaging (MRI) in addition to annual mammography increases breast cancer detection rates among women with an increased risk of breast cancer and dense breast tissue...