AJR Podcast Series AJR

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27664 
Gregory Lee, MD and Jean Jeudy, MD discuss the accuracy of visual scoring of coronary artery calcium on chest CT, regardless of contrast. By more accurately reporting these scores, large groups of patients may greater benefit from preventative treatment of coronary disease.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27494 
Xiaochen Denise Liu, PGY 5, discusses an article in which the preliminary findings suggest the need for modification of the current consensus for CKD risk factor prior to outpatient administration of iodinated contrast.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.21.27289  Rosalind Gerson, PGY3, discusses a study that compared the diagnostic performance of stress myocardial perfusion imaging (MPI) and CT Angiography with AI-Quantitative CT (CTA + AI-QCT) in detecting obstructive coronary artery stenosis, with invasive angiography serving as the reference standard. CTA + AI-QCT demonstrated better diagnostic performance than MPI. Modelling of diagnostic algorithms showed that incorporating CTA+AI-QCT reduced both costs and rates of invasive testing.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27675 
The key step in the creation of a transjugular intrahepatic portosystemic shunt (TIPS) is the needle puncture from a hepatic vein to a portal vein. This can be challenging in patients with portal vein thrombosis, where the portal vein is poorly visualized. Liwei Jiang, MD, discusses a feasibility study that employs a previously described technique of placing a guidewire into the right hepatic artery to serve as a landmark for the target portal vein.

Full article: https://www.ajronline.org/doi/full/10.2214/AJR.21.27255 
Radiation safety is important, particularly in pediatric imaging. Viet Le, MD discusses an article that demonstrates how a deep learning-based algorithm reduces radiation dose in pediatric CTs compared to current techniques without loss of image quality.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.21.27274 
Ground-level fall is a common injury in older patients and a frequent cause of ED visits. These low impact falls may lead to intracranial hemorrhage, which is a particular concern in patients on antithrombotic therapy. In this episode, Sara Tedla MD, discusses a recently published study in AJR, which evaluates traumatic intracranial hemorrhage on CT after minor head trauma in adult patients on antithrombotic therapy.