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3D map of the structure of the enzyme D-xylose isomerase

An innovative collaboration among scientists at Los Alamos National Laboratory, Fox Chase Cancer Center and the University of Tennessee has successfully applied neutron diffraction to create a three-dimensional map of the structure of the enzyme D-xylose isomerase.

16 May 2006

New phase-contrast microscopy developed at PSI enhances X-ray images

Imaging techniques are increasingly at the forefront of progress in science and technology.

10 May 2006

Study reveals structure of E. coli multidrug transporter protein

This new study could potentially help researchers find new ways to avoid the problem of multidrug resistance and enhance the potency of existing drug compounds.

9 May 2006

Breast removal not the only treatment option for non-invasive breast cancer

Breast conserving surgery, long known to be successful at treating the more common invasive cancer, can also be effective for this pre-invasive condition, according to a new study from researchers at the University of Michigan Comprehensive Cancer Center.

8 May 2006

MicroCT-based virtual histology

Utah and Texas researchers combined miniature medical CT scans with high-tech computer methods to produce detailed three-dimensional images of mouse embryos - an efficient new method to test the safety of medicines and learn how mutant genes cause birth defects or cancer.

8 May 2006

New technology to help physicians and engineers pool resources to prevent stroke

A professor at the University of Houston and his research students are working with physicians and scientists at the Methodist Neurological Institute on new technology to help identify which brain aneurysms are at highest risk of rupture and could cause a stroke.

8 May 2006

Breast conserving surgery is a good option for early breast cancer

For women diagnosed with a type of non-invasive breast cancer, removing the breast is not the only treatment option.

8 May 2006

Significant changes in tumor growth can be detected through short interval follow-up

These growths may have important clinical implications in the management of patients, enabling early discontinuation of potentially toxic chemotherapy drugs.

4 May 2006

Patients have high expectations about breast cancer screening mammography

A substantial proportion of women have beliefs about their personal risk of breast cancer, and expectations about the performance of mammography that are abnormally high or unrealistic, according to a survey conducted at University of Michigan Health Systems in Ann Arbor, Michigan.

4 May 2006

Scientists learn valuable lesson from nature - secret behind nature's medicines

After years of wondering how organisms managed to create self-medications, such as anti-fungal agents, chemists have discovered the simple secret.

3 May 2006

MRI clues identify stroke victims at risk of skull hemorrhaging

The appearance of parenchymal enhancement of stroke lesions and the hyperintense MCA sign on MRI may help identify stroke patients at risk of hemorrhaging in the skull, says a new study by researchers at Shantou University Medical College in China and the University of Toronto in Canada.

3 May 2006

Image-guided kidney biopsy can diagnose benign kidney tumors and has a low rate of complications

For the study, 407 image-guided kidney lesion biopsies were performed in 377 patients using either CT, ultrasound, or a combination of both to guide a small needle through the skin of the patient to take a sample of the lesion.

3 May 2006

Percutaneous cryoablation is a safe method for treating kidney tumors

Percutaneous cryoablation, a relatively non-invasive technique that destroys tumors by freezing them, is a safe method for treating kidney tumors in selected patients who are not considered candidates for surgery, according to a new study by researchers from the Mayo Clinic in Rochester, MN.

3 May 2006

MR cystography accurate and safe for vesicoureteral reflux screening

MR cystography provides excellent anatomic detail of the urinary system and is a potential screening examination for vesicoureteral reflux (VUR), according to a new study by researchers from Changi General Hospital in Singapore and the University of California, San Francisco.

3 May 2006

MDCT urography shows potential for detecting bladder cancer without surgery

MDCT urography is a promising technique for detecting bladder tumors both with and without contrast material, helping patients avoid an invasive test, according to a new study by researchers from the University of Michigan Health System in Ann Arbor, MI.

3 May 2006

Low radiation dose still means successful interventional procedures

Radiation dose can be reduced by as much as 88 percent for common interventional radiology procedures and still be safe and effective, a new study shows.

3 May 2006

African American men have fewer, less severe coronary obstructions than white males

While African American men are more likely to die from cardiovascular disease, they paradoxically have fewer cases of coronary obstruction than clinically similar white men, according to a new national study led by a Medical College of Wisconsin researcher.

3 May 2006

Virtual reality simulation technology improves carotid angiography skills

Cardiologists can learn to perform risky catheter procedures such as carotid angiography on a virtual patient simulator, rather than on real patients, according to a new study in the May 2, 2006, issue of the Journal of the American College of Cardiology.

3 May 2006

New technique reduces radiation exposure by 60 percent in abdominal CT of children

By lowering the tube current to account for both the weight and body symmetry of a child, an abdominal CT radiation dose can be reduced by 60% without compromising the image quality, says a new study by researchers from the Children's Hospital of Philadelphia in Pennsylvania.

3 May 2006

CT colonography even safer than previously thought

The safety profile for CT colonography (CTC) is extremely favorable, particularly for the purposes of screening patients with no symptoms and when distending the colon using an automated carbon dioxide technique, a finding that goes against the higher complication rates for CTC reported by other groups, according to a new study.

3 May 2006