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.

Experts evaluate new consensus recommendations involving rare cancer on CT

Researchers referred to the newly developed Korean Society of Abdominal Radiology consensus recommendations when evaluating the CT scans of patients with extrahepatic bile duct cancer.

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Pre-treatment chest CT features can predict overall survival in lung cancer patients

The noncancerous imaging features obtained before radiation therapy could be used in the future to help guide treatment decisions for these patients, experts suggested.

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Risks of stroke and heart attack increase with larger thoracic aortic diameter, research shows

Results from multi-detector CT scans revealed that women in particular appeared to be more susceptible to faster deterioration of the aging aorta.

Patient-reported risk factors increase unnecessary testing before contrast-enhanced CT

In a new study published in the AJR, pre-scan same day eGFR testing revealed that out of 10,256 patients who had these labs, only 1.4% displayed levels below the recommended cutoff.

Patients' T-shirt size an accurate measurement for CT dose reference levels

Experts suggest that their findings indicate dose reference levels could be shirt size specific in the not so distant future, according to a study published in the European Journal of Radiology

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AI predicts COVID prognosis at near-expert level using CT scoring system

A deep convolutional neural network was able to predict hospital stay, ICU admission and intubation when scoring chest CT images of hospitalized COVID patients.

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Individualized communications increase colorectal cancer screening completion

Those who received customized messages pertaining to their risk of developing colorectal cancer are 34% more likely to complete the screening than those who are offered standard referrals, research shows.

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Lung cancer screenings are proven to save lives, but disparities remain, experts discover

Non-white individuals and people living in less educated, lower income areas are more likely to receive an advanced lung cancer diagnosis, such as stage 4 disease.

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.