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Abdominal Imaging

Should the radiologist order an abdomen CT scan or an abdomen MRI? Abdominal disorders, including the alimentary tract and the genitourinary system, are usually diagnosed and addressed beginning with abdominal imaging. Diagnostic radiology, including ultrasound, computed tomography, MR imaging, and nuclear medicine, are all used in modern abdominal imaging as well. We bring you the latest news on key topics in abdominal imaging in these free articles and newsletters.

Features from this Topic

A new method of creating radioisotopes could not only eliminate the chronic shortages that the medical world has faced in recent years but also lead to new types of medical imaging and nuclear medicine therapy, according to one of the technique’s developers.

Mark Raizen, PhD, professor of physics at the University of Texas at Austin, is senior editor of an article … read more »

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State regulation of radiologic technologists has “little impact on public health and safety” and should be abolished, according to a staff report of an agency of the Texas Legislature.

Christine Lung, vice president of government relations and public policy for the American Society of Radiologic Technologists, begs to differ:
Everyone knows that radiation is a carcinogen. If performed incorrectly, it’s a direct … read more »

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Newer CT scanners drastically reduce the amount of radiation exposure for patients, according to a new study that involved nine sites in the United States and Saudi Arabia.

The researchers compared radiation exposure from first-generation 64-slice single-source and dual-source scanners to that from the new generation of 128-slice dual-source scanners with high-pitch capability. The newer machines reduced overall dosage by 61 … read more »

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An international team of researchers has found a way to make iron oxide nanoparticles behave usefully for both MRI imaging and treatment of tumors: encase them inside larger silicon and polymer particles.

That creates versatile iron oxide composites that can act as MRI contrast agents, be manipulated with magnets, be heated, and degrade quickly. Normally, you would need different sizes of … read more »

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A breakthrough at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory in Berkeley, California, could lead to high-frequency ultrasound imaging with up to 1,000 times higher resolution than today’s medical ultrasounds.

Xiang Zhang, PhD, summed up the research this way:
We have demonstrated optical coherent manipulation and detection of the acoustic phonons in nanostructures that offer new possibilities in the development … read more »

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Computer simulations indicate that, for the most part, new gamma and neutron imaging techniques would be safe, delivering roughly the same radiation dosages as X-rays or CT scans—at least while imaging the liver or breast.

Researchers at Duke Medicine in Durham, North Carolina, came to that conclusion. And the new techniques offer advantages, said Anuj J. Kapadia, PhD, assistant professor of … read more »

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Technology borrowed from military night-vision goggles can greatly improve imaging of the lymphatic system and promises to help victims of lymphedema, according to research scheduled to be presented at the upcoming Conference on Lasers and Electro-Optics (CLEO:2014).

Researcher John Rasmussen, PhD, didn’t mince words about the implications of the new technique, called near-infrared fluorescence lymphatic imaging (NIRFLI):
We feel that the ability … read more »

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Ultrasound performs as well as CT in evaluating emergency department patients suspected of having kidney stones, according to new research presented last month at the American Urological Association annual meeting in Orlando, Florida.

Marshall Stoller, MD, professor and vice chair of urology at the University of California, San Francisco, and colleagues reported on a randomized trial. At 15 U.S. academic medical centers, … read more »

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MRI use substantially improves breast cancer screening for female survivors of childhood Hodgkin’s lymphoma (HL), according to a Canadian-led study detailed in an article published online today in Cancer.

Women who underwent chest radiation therapy for Hodgkin’s lymphoma have an increased risk of breast cancer. Established guidelines recommend MRI breast screening starting at age 25 or eight years after the chest radiation, … read more »

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Cancer screening for people with cirrhosis of the liver, using ultrasound scans and blood tests, could significantly increase liver cancer survival rates, according to researchers at UT Southwestern Medical Center in Dallas and Emory University in Atlanta.

The researchers did a meta-analysis of 47 studies involving more than 15,000 patients. They published their results last month in PLOS Medicine. Amit Singal, MD, lead … read more »

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