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.

New publicly available deep learning model for CT organ segmentation in children shows promise
The model was developed and validated specifically for liver, spleen and pancreas segmentation, and outperformed a publicly available segmentation model already in use.
A significant amount of imaging orders in emergency settings are inappropriate
A general lack of awareness pertaining to ACR appropriateness criteria could be a driving factor behind the misguided requisitions, authors of a new analysis suggest.
AI improves CT assessments, boosts care for real-world heart patients
Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.
ChatGPT shows 'significant promise' in guiding contrast-related decisions
This could be especially helpful when timely clinical decisions relative to the use of a contrast agent need to be made.
Actionable tips imaging departments can implement to reduce energy consumption
With the earth’s warmest March on record in 175 years barely in the rearview mirror, a team of radiology experts says medical imaging must step up its sustainability efforts.

A 'disconcerting' number of patients at high risk of lung cancer put off follow-up care

Up to 47% of patients identified as being at high risk of lung cancer after CT screening drag their feet before seeking follow-up care.

May 17, 2022

found that abdominal CT scans could be a feasible option for bone density screenings, as the modality achieved results comparable to those yielded by traditional DXA scans #osteoporosis #bonedensity

Abdominal CT comparable to DXA for osteoporosis screening

Outside of the correlation between measurements obtained using both modalities, the researchers also identified Hounsfield unit thresholds that could reliably rule out osteoporosis.

May 10, 2022

How radiology should prepare for AUC clinical decision support reporting requirements

An overview for the coming January 2023 mandate to use clinical decision support for all advanced imaging orders.

May 10, 2022

Lung abnormalities completely resolve for majority of COVID pneumonia patients

A study published this week in Radiology found that 12 months after hospitalization for COVID pneumonia, 93% of patients’ lung abnormalities had cleared up on follow-up chest CT scans.

May 10, 2022

Preserving contrast media supplies: 7 ACR recommendations

With the shortage, which pertains specifically to all formulations and concentrations of GE Healthcare’s Omnipaque (iohexol), expected to last until mid-June, several organizations have alluded that conservation efforts are of critical importance.

May 9, 2022

An example of CT imaging coronary plaque assessment on TeraRecon's advanced visualization software.

VIDEO: Use of CT to assess coronary plaques

Leslee Shaw, PhD, director of The Blavatnik Family Women’s Health Research Institute, Mount Sinai Hospital, New York, explains how cardiac computed tomography (CT) can be used to assess coronary plaques.

May 9, 2022

$Patients with heart failure with preserved ejection fraction (HFpEF), who face a high mortality risk and do not respond to conventional therapies, are changing the way clinicians think about heart failure.$

Is coronary heart disease on CT associated with early development of COPD?

"This awareness is important to avoid oversight of symptoms like dyspnea and vague chest discomfort, which can easily be interpreted as symptoms caused by the known disease COPD,” experts involved in the study said.

May 9, 2022

Be prepared: IV contrast media shortage could last up to 8 weeks

All formulations and concentrations of GE Healthcare’s Omnipaque (iohexol) are expected to be in short supply until mid-June due to COVID lockdowns where the contrast is manufactured.

May 6, 2022

Around the web

Cardiovascular Business

AI improves CT assessments, boosts care for real-world heart patients

Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.

Cardiovascular Business

AI predicts cardiovascular risk during CT scans—no invasive tests or contrast required

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans.

Radiology Business

Google teams with Bayer to address radiologist burnout via AI

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday.