In this series, authors of select AJR articles discuss how their studies were performed, the results, and how the studies changed their practices.
Meta-Analysis of the Noninvasive Colorectal Screening Tests
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.20.25416
There has been a dearth of head to head comparison of the performance of the different noninvasive colorectal cancer screening tests. Alicia Chen, MD discusses a new study that has completed a valuable meta-analysis comparing the positive predictive value and detection rate of stool DNA, FIT, and CT colonography.
Adding Delayed Phase Images to Dual-Phase Contrast-Enhanced CT Increases Sensitivity for Small Pancreatic Ductal Adenocarcinoma
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.20.25430
Dual phase pancreatic CT has been the traditional work horse for evaluation of pancreatic masses. Ben Kipper, MD discusses a paper examining an additional “delayed” phase to enhance the sensitivity and detection of small pancreatic adenocarcinomas.
Acute Exacerbation of Interstitial Pneumonia after Lung Cancer Surgery: Challenges in Developing Imaging Criteria and Opportunities for Future Research
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.21.25499
Jordan Perchik, MD discusses a new study in which a team of radiologists attempt to detail imaging findings that can identify patients with interstitial lung disease who are at high risk of developing acute exacerbation after thoracic surgery. Several promising metrics are described however the close overlap between the statistically significant values leads to a broader discussion of statistical significance versus practical application.
Performance of MRI for Detection of Lateral Meniscus Posterior Root Injury in Children with Anterior Cruciate Ligament Tear
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.21.25554
Yoon-Jin Kim, MD discusses a study identifying imaging findings of lateral meniscus posterior root tear on pre-operative MRI in children. Imaging findings generally having a high specificity put low sensitivity with tears of the root proper having the best accuracy for identifying root tears when arthroscopy reports are used at the reference standard.
Axillary adenopathy following COVID-19 vaccination in breast imaging
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.21.25651
Jeff Guccione, MD discusses an article has potential implications for future guidelines in how to manage axillary adenopathy following vaccination.
Post-Lumpectomy Surveillance Mammography: Diagnostic versus Screening?
Full article: https://www.ajronline.org/doi/abs/10.2214/AJR.20.25417
For patients who have undergone prior lumpectomy for localized breast cancer, no clear guidelines exist regarding use of diagnostic or screening mammography for post-lumpectomy imaging surveillance. Amber Liles, MD, MPH dives into a recently published article which seeks to answer this research question.
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