Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29964 

Xiao Xiao Tong, MD discusses an original research article that focuses on the pathological correlation of MRI scoring systems. The upgrade and downgrade rates from targeted biopsy to radical prostatectomy were not significantly different between patients whose MRI examinations were clinically interpreted using PI-RADS v2.0 or v2.1. Additional and alternative biopsy techniques with different accuracy rates should be considered in future research to implement the correlation between imaging findings and histology. 

Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29950 

In this episode, Alessandro Micelli, MD discusses an article detailing the advantages that photon-counting detector (PCD) CT can give in the setting of lumbar spine CT, specifically in terms of better CNR and lower radiation dose exposure. This original research study represents first steps in the PCD CT era and will be useful to guide future studies to establish a standard protocol for specific indications of lumbar spine examinations.

Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29670 

Sid Dogra, MD discusses an AJR article in which the authors show that retained biopsy site markers following resection of breast lesions increases risk of residual malignancy, particularly in patients whose initial pathology suggested malignancy. Radiologists can improve patient care by more explicitly noting missing biopsy site markers and recommending early postoperative mammogram on initial intraoperative specimen radiographs.

Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29655 

Shruti Kumar, MD discusses an AJR study that compares the performance of mammography alone, standalone artificial intelligence (AI), ultrasound alone, and a combination of these methods in a sample of 1,325 women. The study suggests that adding AI to mammography and ultrasound does not provide significant benefit in cancer detection rates in patients with dense breasts. However, the study's limitations, including single-institution data and specific AI platform, must be considered before generalizing the results.

Full article: https://www.ajronline.org/doi/10.2214/ajr.23.29570 

Childhood obesity is a growing epidemic globally. Precisely quantifying abdominal fat distribution on MRI could be valuable for research and clinical care, but manual segmentation is extremely tedious. Farzaneh Ghazi Sherbaf, MD discusses a recent study in which the authors developed and validated an AI method to automatically segment subcutaneous and visceral abdominal fat on MRI in adolescents. The work has implications for making obesity research and care more effective through automated, personalized abdominal fat mapping.

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.23.29607 

When grading hepatic steatosis on MRI, we generally assume that chemical-shift images are needed. Robert Smalley, MD takes a look at a recent AJR article that proposes a simpler way using in-and-opposed-phase images. How good is it, and is it ready for clinical adoption? 

Full article: https://www.ajronline.org/doi/10.2214/ajr.23.29674 

Peter Gunderman, MD discusses a recent study that finds artificial intelligence can accurately predict the pathology of pure ground glass nodules, at least in the subset of nodules representing variants of adenocarcinoma. 

Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.23.29609 

Hong Linda Li, MD discusses a new AJR article that details how preoperative MRI-based staging can predict biochemical recurrence of prostate cancer after radical prostatectomy as effectively as post-surgical pathologic staging.

Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29414 

Shambo Guha Roy, MD discusses an article in which the authors developed a deep learning model to predict 30-day mortality of community acquired pneumonia from chest radiographs.

Full article: https://www.ajronline.org/doi/10.2214/AJR.23.29340 

Wenhui Zhou, MD, PhD reviews a recent AJR article that explored the feasibility of pulmonary MRA for evaluating pulmonary embolism during a contrast media shortage in 2022. The results of this study highlight the value of pulmonary MRA as a practical alternative to pulmonary CTA, especially in emergency settings.