Imaging News and Research

RSS

Study shows Actos prevented progression of atherosclerotic plaque volume in patients

New data from a clinical trial using intravascular ultrasound (IVUS) technology found that in patients living with type 2 diabetes, ACTOS (pioglitazone HCl) reduced the atherosclerotic burden in the coronary arteries compared to glimepiride, and prevented progression compared to baseline.

1 Apr 2008

Gene mutations tied to immune comeback during therapy for HIV-1

A new study by U.S. scientists provides compelling evidence that two genes are linchpins in defining the course of immune restoration in HIV-positive individuals undergoing virus-suppressing therapy.

31 Mar 2008

Femtogram-level chemical measurements now possible

Finding a simple and convenient technique that combines nanoscale structural measurements and chemical identification has been an elusive goal.

31 Mar 2008

Teenage brains are different

Many parents are convinced that the brains of their teenage offspring are different than those of children and adults.

31 Mar 2008

Groundbreaking study validates Pittsburgh Compound-B in identifying Alzheimer's disease brain toxins

A groundbreaking study conducted by University of Pittsburgh Alzheimer's disease researchers reported in the journal Brain (currently online) confirms that Pittsburgh Compound-B (PiB) binds to the telltale beta-amyloid deposits found in the brains of patients with Alzheimer's disease.

28 Mar 2008

PET confirmed as valuable cancer diagnostic and disease-staging tool

The recent release of data by the National Oncologic PET Registry (NOPR) showing that positron emission tomography (PET) produced scans revealing disease at a molecular level, which then caused physicians to change treatment plans for more than one-third of participating patients, has corroborated decades of nuclear medicine research.

28 Mar 2008

New brain cells implicated in machinery of cannabinoid signaling

The researchers said their findings could aid in development of treatments for cannabinoid drug abuse. Also, because so-called "endocannabinoids" produced by brain cells are involved in the neural machinery of pain perception and learning and memory, the findings could help in understanding those processes, said the researchers.

28 Mar 2008

Calcium deposits in coronary arteries provide a strong predictor for possible future heart problems

Calcium deposits in coronary arteries provide a strong predictor for possible future heart attacks and cardiac diseases, and detecting such deposits can be valuable for promoting overall cardiac health, according to a study led by the University of California, Irvine and appearing in the March 28 issue of the New England Journal of Medicine.

28 Mar 2008

New nanoparticles for targeting tumors

As a wide variety of nanoparticles continue to demonstrate their ability to improve the delivery of imaging agents and drugs to tumors, nanoparticle researchers have turned their attention to the challenge of systematically determining how a given nanoparticle’s physical and chemical characteristics affect its ability to target tumors. Such data could provide drug developers with guidelines to help them select the most effective type of nanoparticle for a given therapeutic or imaging application.

28 Mar 2008

Astrotechnology brings nanoparticle probes into sharper focus

While pondering the challenges of distinguishing one nanosize probe image from another in a mass of hundreds or thousands of nanoprobes, two investigators at Emory University and the Georgia Institute of Technology made an interesting observation. The tiny, clustered dots of light looked a lot like a starry sky on a clear night.

27 Mar 2008

Next-generation nanomedicine

In an article featured on the cover of the March issue of Nature Nanotechnology, Mauro Ferrari, Ph.D., of The University of Texas Health Science Center at Houston, presented a proof-of-concept study on a new multistage delivery system (MDS) for imaging and therapeutic applications. This discovery could go a long way toward making injectable drugs more effective.

27 Mar 2008

Radiologists use special MRI to identify brain cancer early

A special type of magnetic resonance imaging (MRI) can depict changes in blood volume in the brain that often precede cancerous transformation of brain tumors, according to a new study published in the April issue of the journal Radiology.

26 Mar 2008

MRI's high false positive rate has little impact on women's choice of preventive mastectomy

Magnetic resonance imaging (MRI) falsely detects breast cancer in five out of every six positive scans according to new research into the use of MRI for women with a high, inherited risk of developing the disease.

26 Mar 2008

MRI findings help forecast prostate cancer prognosis

Magnetic resonance imaging (MRI) findings in patients about to undergo radiation therapy for prostate cancer can help predict the likelihood that the cancer will return and spread post-treatment, according to a new study published in the April issue of the journal Radiology.

26 Mar 2008

Yerkes researchers shed light on how human language evolved

Researchers at the Yerkes National Primate Research Center, Emory University, have identified a language feature unique to the human brain that is shedding light on how human language evolved.

25 Mar 2008

New hope for children with bilateral Wilms tumors

Physicians at St. Jude Children's Research Hospital have demonstrated that children with bilateral Wilms tumor, a cancer of the kidneys, can retain normal function in both kidneys by undergoing a procedure called bilateral nephron-sparing surgery, even when preoperative scans suggest that the tumors are inoperable.

25 Mar 2008