Computed Tomography

Computed tomography (CT) is a fast and accurate imaging modality often used in emergency settings and trauma imaging. CT scans, with or without (or both) iodinated contrast are frequently used to image the brain, chest, abdomen and pelvis, but also have post-imaging reconstructive capabilities for detailed orthopedic imaging. It is now a standard imaging modality in emergency rooms to quickly assess patients. CT uses a series of X-ray images shot as the gantry rotates around the patient. Computer technology assembles these into into a dataset volume than can be slices on any access, or advanced visualization software can extract specific parts of the anatomy for study. Find more content specific to cardiac CT.

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Sunshine and rainbows and trauma: How weather can impact CT volume in EDs

This week at the annual RSNA meeting, the worlds of radiologists and meteorologists collided when researchers presented evidence of associations between certain weather conditions and patients presenting with polytrauma. 

Canon to open new subsidiary, Canon Healthcare USA, in Cleveland

“The U.S. market is more and more important for our business,” the company's president and CEO said during a press conference at RSNA 2022. 

Long-term lung cancer survival rates see a 'dramatic' boost thanks to early detection initiatives

When lung cancer is caught in its early stages, long-term survival rates can reach 80% and higher, according to a new large-scale, 20-year international study presented at this year's RSNA meeting.

Iodinated contrast use before, during and after COVID: Trends predict significant growth in demand

A new analysis suggests that, if the use of iodinated contrast were to follow pre-pandemic trends, it could rise by as much as 37% from 2019. 

Why do chest CT findings differ between marijuana and tobacco-only smokers?

Researchers noted that these changes could potentially be attributed to the way in which marijuana is consumed in comparison to tobacco cigarettes, noting that smoking marijuana typically involves a “full inhalation with a sustained Valsalva maneuver.”

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New data deepens debate over links between breast arterial calcification and CAD

The presence of breast arterial calcifications on mammography exams might not be as indicative of cardiovascular risk as previously thought, according to new data.

James Udelson, MD, from Tufts and an investiogator in the PRECISE trial, explains how FFR-CT combined with coronary CT outperformed the standard of care in patients with stable chest pain, or low-risk patients with suspected coronary involvement.

VIDEO: PRECISE trial shows cardiac CT with FFR-CT significantly improves patient outcomes

James Udelson, MD, an investigator involved with the PRECISE trial, explained how patient outcomes were improved by 70% from the current standard of care.

A convicted murderer's fate could hinge on different interpretations of her brain scans

In the case of a convicted murderer, a New York neuro specialist cited a slew of neuroimaging findings that indicate “severe dysfunction” that could have numbed the defendant’s “brakes of inhibition.” 

Around the web

Positron, a New York-based nuclear imaging company, will now provide Upbeat Cardiology Solutions with advanced PET/CT systems and services. 

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.

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