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.

Caught early, lung cancer has 80% overall survivability at 20 years—100% for some tumor types—yet few individuals avail themselves of LDCT screening

New findings to be presented at RSNA confirm that lung cancer is highly curable as long as it’s diagnosed early, as is often the case with low-dose CT screenings.

Canadian radiologists push federal lawmakers to deal with ‘devastating impact’ of long waits for medical imaging

Radiologists from across Canada descended on Parliament Hill in Ottawa earlier this month to voice pressing concerns on behalf of medical-imaging patients and professionals.

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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Lung Association finds low-dose CT screenings underused but cancer survival improving

More than 16% of eligible individuals get screened for lung cancer in Massachusetts. Only 1% do so in California. The national average is unfortunately closer to the latter extreme, at 5.8%.

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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.

FDA greenlights intracranial hemorrhage AI

RapidAI has been cleared for U.S. marketing of updated AI-outfitted software that quickly detects or rules out acute brain hemorrhage on unenhanced CT.

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.”