Imaging News and Research

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Imaging with voltage-sensitive dye captures real-time brain dynamics

The dye incorporates in the brain cells' membrane and changes fluorescence whenever these receive or send electrical signals. Hence, high resolution camera systems allow to simultaneously capture activities of millions of nerve cells across several square millimeters across the brain.

24 Mar 2011

New study: Coronary calcium scan can help reduce risk of heart disease

A new study of coronary artery calcium scanning - a simple, noninvasive test that gives patients baseline information about plaque in their coronary arteries—has shown that the scan helps them make heart-healthy lifestyle changes and lower their heart disease risk factors.

24 Mar 2011

Brain's pleasure and reward circuitry gets a big boost after a sleepless night

A sleepless night can make us cranky and moody. But a lesser known side effect of sleep deprivation is short-term euphoria, which can potentially lead to poor judgment and addictive behavior, according to new research from the University of California, Berkeley.

24 Mar 2011

Cell receptor recycling mechanism discovery opens up new class of therapeutic targets

Prof. Manojkumar Puthenveedu of Carnegie Mellon University studies the mechanisms by which membrane trafficking controls and co-ordinates the complex signalling pathways in the brain. Despite the fact that almost all diseases can be traced to a defect in how cells respond to signals, little is known about how signalling pathways are maintained in normal cells and the changes that occur in abnormal conditions.

23 Mar 2011

Contrast agent for tumor diagnostics

X-rays are not the only way: visible and especially infrared light can also be used to image human tissue. The effectiveness of optical imaging processes can be significantly improved with suitable dyes used as contrast agents. In the journal Angewandte Chemie, a team led by Wenbin Lin at the University of North Carolina (Chapel Hill, USA) has now introduced a novel contrast agent that marks tumor cells in vitro. The dye is a phosphorescent ruthenium complex incorporated into nanoparticles of a metal–organic coordination polymer, which allows an extraordinarily high level of dye loading.

23 Mar 2011

New research on brain plasticity may delay onset of Alzheimer's disease

The human brain loses 5 to 10% of its weight between the ages of 20 and 90 years old. While some cells are lost, the brain is equipped with two compensatory mechanisms: plasticity and redundancy.

23 Mar 2011

Clinical trial to evaluate efficacy of PRP for osteoarthritis pain treatment

For years, doctors have used platelet-rich plasma, or PRP, to promote healing after surgery. Now, Rush University Medical Center is studying whether PRP can help relieve knee pain in patients with mild to moderate osteoarthritis.

23 Mar 2011

Artificial disc replacement may provide better long-term results at reduced cost

When physical therapy and drugs fail to relieve back or neck pain, patients often turn to spinal fusion surgery as a last resort, but two new studies show that in certain situations, especially when several discs are involved, artificial disc replacement may give better long-term results at lower cost.

23 Mar 2011

Gastroenterologist directs new Crohn's and Colitis Program at UT Southwestern

Dorothy Stockstill was taking eight pills a day, and her severe abdominal pain and persistent diarrhea weren't improving. The Denton resident had seen multiple physicians throughout the Dallas area. Her attacks were so severe, she couldn't successfully travel from the front of a retail store to the restrooms in back.

23 Mar 2011

Spectrum's Prior Approval Supplement for Indium-111 ZEVALIN accepted for review by FDA

Spectrum Pharmaceuticals announced today that the U.S. Food and Drug Administration (FDA) has accepted for review the Prior Approval Supplement containing data providing for the removal of the Indium-111 ZEVALIN® (ibritumomab tiuxetan) pre-treatment imaging evaluation, more commonly referred to as the "bioscan" requirement.

23 Mar 2011

Mayo Clinic receives $1 million gift for Lewy body dementia study

To help continue its internationally recognized work in Lewy body dementia, the Harry T. Mangurian, Jr., Foundation has awarded Mayo Clinic a $1 million gift, pledged over four years. Lewy body dementia, which combines aspects of both Alzheimer's and Parkinson's diseases, is the second most common form of dementia in the United States.

23 Mar 2011

CABC offers first-ever PEM-guided accessory for breast biopsy

The Center for Advanced Breast Care is the first comprehensive breast center in the Chicago area to add Positron Emission Mammography-guided biopsy capability to its already extensive breast cancer care services.

23 Mar 2011

$FDA clears LensAR Laser System for use in refractive cataract surgery$

FDA clears LensAR Laser System for use in refractive cataract surgery

LensAR, Inc., the leading developer of next-generation laser technology for refractive cataract surgery, announced today that the company has received 510(k) clearance from the FDA for use of the LensAR™ Laser System for anterior capsulotomy and lens fragmentation during cataract surgery.

23 Mar 2011

New image resolution technology from Ellex ELX

Ellex Medical Lasers Limited (ASX:ELX), an ophthalmic laser and ultrasound technology company, today announced that it will introduce a new diagnostic ultrasound mode for its leading Eye Cubed™ system at the upcoming meeting of the American Society of Cataract and Refractive Surgeons Meeting.

22 Mar 2011

Larger hippocampal volume linked with recovery of PTSD

The hippocampus, a brain region implicated in memory and interpreting environmental contexts, has been the focus of a controversy in posttraumatic stress disorder.

22 Mar 2011

Scientists create organic nanoparticle to treat cancer and deliver drugs

A team of scientists from Princess Margaret Hospital have created an organic nanoparticle that is completely non-toxic, biodegradable and nimble in the way it uses light and heat to treat cancer and deliver drugs.

22 Mar 2011

USPTO grants patent to HistoRx methods for digital microscopy standardization

HistoRx, Inc., announced today that the U.S. Patent and Trademark Office has granted a patent protecting the company's methods for standardization of digital microscopy instruments in order to go beyond imaging to generating high-quality reproducible data that precisely relates to biomarker concentrations in tissue sections.

22 Mar 2011

NDS Surgical Imaging launches dynamic color calibration solution for surgical displays

NDS Surgical Imaging (NDSsi) today launched its proprietary Color Correction Technology (CCT). This dynamic color calibration solution is designed to fine tune the color response of surgical displays, uniquely correcting high-definition images in real-time on a pixel-by-pixel basis. The result is accurate, consistent color across all displays, conforming to international standards.

21 Mar 2011

NDS Surgical Imaging introduces new 26" Radiance G2 High-Bright displays with stabilized LED backlight

NDS Surgical Imaging (NDSsi) today announced the industry's first stabilized LED backlight, available in all new 26" Radiance G2 High-Bright surgical displays. Backlight stabilization assures consistent brightness of images over the life of the display—specified at 25,000 hours—without any dimming or compromise in luminance output. The result is a new level of image clarity and consistency, with enhanced brightness, contrast and color.

21 Mar 2011