Researchers Develop 4-D Cardiac Image Capability

Utilizing an MRI scanner and software designed for the automotive and aircraft industries, researchers at the University of Wisconsin School of Medicine and Public Health have developed technology that captures 4-D  images of the entire chest, with blood flow velocity represented in color coded filaments.

The procedure has the added advantage of producing results in 10 minutes—or nine times faster than current methods—does … read more »

Pneumoperitoneum must be diagnosed promptly when it occurs, which is often abruptly and without warning.

Author: Stephen R. Baker, MD. Special Presentation for Practical Reviews in Radiology

Other Signs of Free Air on Radiography

This third section of the review on diagnosing pneumoperitoneum considers supine plain film signs of abdominal free air outside the right upper quadrant.

In the anterior paramedian superior position of … read more »

Pneumoperitoneum must be diagnosed promptly when it occurs, which is often abruptly and without warning.

Author: Stephen R. Baker, MD. Special Presentation for Practical Reviews in Radiology

Signs of Free Air on Radiography

The best place to look on plain films for findings of pneumoperitoneum is in the right upper quadrant, because the homogeneous shadow of the liver affords an excellent background upon … read more »

PACS systems or review stations don’t always correctly display and measure lesions on magnified images, even though they have FDA approval. That’s according to a small study published in the January issue of the American Journal of Roentgenology.

Currently the FDA has approved eight digital mammogram systems. However, none of the literature on image quality among these systems addresses measurement accuracy, … read more »

Over the past 10 years, CT angiography (CTA) has been replacing ventilation/perfusion (VQ) imaging as “the gold standard” for imaging pulmonary embolism (PE). Some would say that’s with good reason: CT is faster, produces sharper images, and is usually readily available in most hospitals. However, using CT for diagnosing PE is a big concern for some doctors, who say the … read more »

Annual screening with both mammography and MRI seems to be a cost-effective way to help high-risk women live longer, says a new study published in the March issue of Radiology. The findings support current screening recommendations by the American Cancer Society.

“For women at the highest risk of breast cancer, using both breast MRI and mammography together for screening will likely … read more »

University of Missouri researchers are studying how photoacoustics, or a laser-induced ultrasound, could help scientists locate the general area of the lymph node where melanoma cells could be residing. This new technology could help doctors identify the stage of melanoma more accurately.

“This method can be used to determine if the cancer has spread from stage 2, where the melanoma is … read more »

The U.S. Food and Drug Administration will hold a public meeting March 30-31 to discuss what CT manufacturers and other vendors can do to reduce unnecessary radiation exposure. The day-long meetings will take place at the Holiday Inn Gaithersburg in Gaithersburg, Maryland. Registration is free and on a first-come, first-served basis.

According to the FDA’s federal notice, the goal of the … read more »

There’s no shortage of radiologists in the employment market today, and radiologists want more work, a new study suggests. The findings appear in the March issue of the American Journal of Roentgenology.

Using anonymous data from the American College of Radiology’s 2007 Survey of Diagnostic Radiologists, researchers from the American College of Radiology (ACR), Yale, Johns Hopkins, and the University of … read more »

Radiologists will play a key role in the event of a national disaster and should adequately prepare for such scenarios, says an article recently published in Emergency Radiology. The article describes 12 possible situations, formulated by the U.S. Department of Homeland Defense after the Sept 11 attacks, and the expected response from the radiology community. Potential scenarios include:

nuclear detonation
biological aerosol … read more »