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.

Head CTs could present an opportunity to screen for osteoporosis
In individuals who have not completed a DEXA scan, head CT conducted for other reasons can offer insight into patients’ frontal bone density, a potential marker of osteoporosis.
PET is an energy hog, but relatively rare utilization lessens its carbon footprint. MRI and CT have no such ‘out’
Medical imaging machinery uses a lot of power, and the extent to which it quickens the pace of global warming is becoming clearer.
AI automation could 'revolutionize' Crohn's Disease severity CT assessments
Machine learning models could help create a more standardized, reproducible and efficient way of grading Crohn’s disease severity in the small bowel based on CT imaging.
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.

Examples of two lung cancers that were caught using low dose CT lung screening. Image from RSNA

Q&A: What updated reimbursement policies could mean for CT lung screening rates in the United States

The ACR said a recent reimbursement rule change for low-dose computed tomography (CT) lung screen scans will help open up screening to more patients.

March 11, 2022

Radiologists call for standardized imaging criteria for diagnosing pancreatitis in children

A recent analysis conducted on interobserver agreement when diagnosing chronic pediatric pancreatitis has raised some concerns about the need for more standardized diagnostic criteria.

March 9, 2022

CT is a safe, comparable alternative to invasive coronary angiography for chest pain work-ups

Patients who underwent CTA experienced fewer procedure-related cardiovascular events compared to a group who had invasive coronary angiography exams, experts explained recently.

March 8, 2022

Simple, proven strategies to reduce extravasation of contrast media during CT scans

Though adverse events after subcutaneous extravasation of contrast media during CT scans are not common, serious complications can occur, experts report in Academic Radiology.

March 2, 2022

CT scan showing lung cancer nodules with measurements of each nodule to track growth or regression from treatment. Image courtesy of RSNA

ACR outlines changes in Medicare lung cancer screening coverage

The American College of Radiology recently released a detailed summary of the National Coverage Determination related to screening for lung cancer with low dose CT.

February 28, 2022

Deep learning-based reconstruction reduces pediatric CT dose by 54%, maintains image quality

Researchers used three different reconstruction techniques to compare how lower dose CT scans would impact image quality for pediatric patients.

February 25, 2022

Allergic reactions to iodinated CT contrast increase likelihood of sensitivity to GBCAs

Historically, sensitivity to iodinated contrast media was not a risk factor for adverse reactions to gadolinium-based contrast agents, experts explained this week in Radiology.

February 22, 2022

Automated CT scoring system accurately predicts prognosis in stroke patients

The study used non-contrast CT and CT perfusion imaging to analyze agreement between an automated reader and human radiologists with differing experience levels.

February 18, 2022

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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.

Computed Tomography

Head CTs could present an opportunity to screen for osteoporosis

PET is an energy hog, but relatively rare utilization lessens its carbon footprint. MRI and CT have no such ‘out’

AI automation could 'revolutionize' Crohn's Disease severity CT assessments

New publicly available deep learning model for CT organ segmentation in children shows promise

A significant amount of imaging orders in emergency settings are inappropriate

Around the web