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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lung cancer

AI powers dual CT screening for lung cancer and cardiovascular disease

Rensselaer Polytechnic Institute teamed up with clinicians at Massachusetts General Hospital to develop and test the deep learning tool.

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CT data shows high rates of emphysema among marijuana users

Radiologists should take note of these findings as the drug's popularity and legalization continue to climb.

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Mobile stroke units improve patient outcomes, reduce risk of disability

Researchers tracked data from more than 1,000 patients who received care from 2014 to 2020. 

chest pain lung pulmonary embolism

New pulmonary embolism approach could substantially reduce imaging overuse

The pretest probability score produced false-negative rates below 1% and dropped imaging use by about 20%, according to a new JAMA Cardiology study. 

chest pain lung pulmonary embolism

AI spots dozens of missed incidental pulmonary embolism diagnoses at one hospital

The investigation was retrospective, but Duke scientists believe their algorithm could potentially aid radiologists in spotting near-misses in their work.

chest pain lung pulmonary embolism

CCTA is a safe, effective alternative to SPECT in patients with stable chest pain

The findings come by way of the RESCUE Trial, which included more than 1,000 participants from 44 different sites.

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Top cardiac society releases new guidelines for training radiology students in cardiovascular CT

The Society of Cardiovascular Computed Tomography recently published its 14-page guidance online.

Fasting before contrast-enhanced CT exams is unnecessary, experts say

In some instances, not eating solid foods can actually make patients feel sick, leading to nausea and dehydration, researchers explained recently.

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Around the web

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

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.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

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.

Cardiovascular Business
FDA clears AI tool that flags signs of heart disease in chest CT scans

The newly cleared offering, AutoChamber, was designed with opportunistic screening in mind. It can evaluate many different kinds of CT images, including those originally gathered to screen patients for lung cancer. 

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