CT: Page 395

Dual-energy CT halves contrast dose for PE assessment

Pulmonary embolism (PE) rule-outs can be done with half the normal contrast dose using dual-energy CT -- on a single-source scanner. Researchers from Canada believe their new protocol is robust enough to open up a critical diagnostic test to patients who weren't candidates for CT pulmonary angiography.

January 13, 2011

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Mo. radiologist turns clinical scans into creative scenes

By Nicole Pettit

One way radiology can shift into art is as an extension of how it's used medically -- for example, by revealing the delicate internal structure of a flower. A Missouri radiologist is taking a different approach, using clinical images as building blocks to create something entirely new.

January 12, 2011

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CT with ASIR enhances CAD performance for pulmonary nodules

By Erik L. Ridley

Adaptive statistical iterative reconstruction (ASIR) technology can not only reduce CT radiation dose and improve image quality, it can also improve the sensitivity of computer-aided detection (CAD) software for detecting pulmonary nodules, according to researchers from Japan.

January 11, 2011

MDCT shows high accuracy for identifying bullet trajectories

A new study in the March issue of Radiology touts CT as an efficient, effective way to analyze wounds from bullets and explosive devices. The wars in Iraq and Afghanistan mean that U.S. troops face threats from increased sniper activity and the use of improvised explosive devices, according to the study.

January 10, 2011

CAD may boost CT detection of pulmonary embolism

By Erik L. Ridley

Computer-aided detection (CAD) technology shows promise for helping radiologists diagnose pulmonary embolism on CT pulmonary angiography exams, according to research from the University of Michigan in Ann Arbor.

January 10, 2011

Hitachi adds financing partner

By AuntMinnie.com staff writers

Hitachi Medical Systems America has signed an exclusive long-term agreement with financing firm Key Equipment Finance.

January 9, 2011

Colon cancer incidence drops sharply after colonoscopy

Colonoscopy is associated with substantial reductions in colorectal cancer incidence, according to a new study. Colonoscopy reduced cancer risk by 77% overall, and in contrast to other recent studies, it protected both the left and right sides of the colon.

January 9, 2011

Big CTA trial shows coronary plaque risk in low-risk patients

People considered to be at low risk for coronary artery disease aren't so low-risk after all, according to early results from a large coronary CT angiography (CTA) screening study in Korea.

January 6, 2011

U.K. radiation exposure lower than in other countries

Exposure to medical radiation in the U.K. is lower than in other countries, although the level of dose exposure has been creeping higher over the years, according to a new study released January 4 by the U.K. Health Protection Agency.

January 4, 2011

Medic Vision gets FDA nod

By AuntMinnie.com staff writers

Imaging software developer Medic Vision has received U.S. Food and Drug Administration 510(k) clearance for its SafeCT dose reduction software.

January 4, 2011

Large study shows exams using radiation are common in children

Children undergo many imaging procedures involving radiation, concludes a new study from the University of Michigan and other U.S. centers. The three-year study covering more than 350,000 children with health insurance showed that the subjects received, on average, three scans involving radiation over the study period.

January 3, 2011

Dual-phase DECT myocardial perfusion cuts time, dose

There's no need to acquire images during both stress and rest phases in dual-energy CT (DECT) myocardial perfusion imaging, say researchers from the U.S. and Germany. A stress phase combined with a delayed-enhancement phase performs just as well while reducing radiation dose by a third.

January 3, 2011

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