AJR Podcasts

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27842

Diagnostic yield of CT guided core needle biopsy of visible bone lesions has been well studied, but not thoroughly studied for occult non-spinal bone lesions. Abdul Khan, MD, discusses a recently published AJR article in which investigators evaluated the diagnostic performance of biopsy of occult osseous lesions and analyze the various malignant and benign diagnosis.

Full article: https://www.ajronline.org/doi/10.2214/AJR.22.27739

Ragheed Al-Dulaimi, MD discusses a new article that demonstrates how the addition of DWI to conventional MRI can improve diagnostic performance and interobserver agreement in differentiating cancer recurrence from postsurgical fibrosis.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27687

Axillary swelling, tenderness and palpable lymphadenopathy are commonly reported side effects of the COVID-19 vaccination. Alexandra Millet, MD discusses a new study that observed a prolonged duration to resolution of unilateral ipsilateral axillary lymphadenopathy suspected to be related to COVID 19 vaccination. Administration of the Moderna vaccine, receipt of a second vaccine dose after the initial lymphadenopathy presentation, and greater cortical thickness at initial presentation were independently associated with a longer time to resolution following presentation. The findings support a follow up interval of at least 12 weeks for suspected vaccination-related lymphadenopathy as well as not delaying screening mammography due to recent vaccination.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.22.27378

Wenhui Zhou, MD, PhD reviews a recent AJR article examining the performance and interreader agreement of clear cell likelihood score (ccLS) for noninvasive, imaging assessment of renal mass. This validation study bolsters the value of multiparametric MRI to predict pathologic diagnosis of incidentally detected renal cell carcinoma.

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.

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.