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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AI-generated coronary tree from a patient's CT scan showing a color code of areas of interest for plaque burden from the Cleerly software shown at SCCT 2022.

VIDEO: Why plaque composition CT imaging may be the future of cardiology

Former European Society of Cardiology president Prof. Jeroen Bax explains the difficulty in quantifying these plaques manually and how artificial intelligence may change this to allow rapid, detailed quantitative analysis. 

FDA temporarily approves importation of a second foreign-labeled iodinated contrast media

Bracco Diagnostics, Inc has been given the go ahead by the U.S. Food and Drug Administration to temporarily import Iomeron (iomeprol injection) into the U.S. market amid the ongoing iodinated contrast media shortage. 

Left, coronary CT angiography of a vessel showing plaque heavy calcium burden. Right, image showing color code of various types of plaque morphology showing the complexity of these lesions. The right image was processed using the FDA cleared, AI-enabled plaque assessment from Elucid.

Cardiac CT soft plaque assessment may offer paradigm shift for coronary disease screening

New artificial intelligence software that can evaluate coronary CT scans to automatically assess soft plaques were by far the biggest technology advance discussed at the Society of Cardiovascular Computed Tomography (SCCT) 2022 meeting. 

Iodine contrast being loaded into a contrast injector in preparation for a cardiac CT scan at Duly Health and Care in Lisle, Illinois. The contrast shortage is causing some healthcare organizations to postpone exams and procedures and ration contrast supplies. Photo by Dave Fornell

Substituting iodinated contrast media in patients with a history of ICM reactions reduces risk by 61%

“For patients with a prior ICM-induced hypersensitivity reaction, healthcare providers must balance the benefit of ICM reuse against the risk of a repeat reaction,” authors of a new meta-analysis published in Radiology said.

Eric Williamson, MD, MSCCT, the 2021-2022 president of the Society of Cardiovascular Computed Tomography (SCCT) and professor of radiology at Mayo Clinic, shares his key takeaways from the SCCT 2022 conference. #SCCT #SCCT2022 #yesCCT

VIDEO: Top 6 takeaways from the Society of Cardiovascular CT 2022 meeting

Eric Williamson, MD, MSCCT, the 2021-2022 president of the Society of Cardiovascular Computed Tomography (SCCT) and professor of radiology at Mayo Clinic, shared his key takeaways from the SCCT 2022 conference. 

contrast shortage

Generic, FDA approved contrast agent set to hit the market in wake of nationwide shortage

On July 18 Fresenius Kabi announced that they are rolling out a line of generic contrast media products, starting immediately with Iodixanol Injection USP. 

Contrast shortage update: FDA opens door for U.S. providers to order foreign-labeled Bayer contrast media

Per Bayer’s communications, the contrast agent is manufactured at the same site in Berlin, Germany as the Ultravist that is intended for U.S. markets, but due to its intended distribution abroad it lacks current FDA-approved labeling. 

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Techniques for photon-counting CTs that could improve orthopedic imaging

Image sharpness was further improved when sharper reconstruction kernels were used, despite having higher noise levels.

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Around the web

Cardiovascular Business
Positron partners with Upbeat Cardiology Solutions to improve cardiac PET/CT access

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

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.