The American College of Radiology (ACR) has released an updated version of its ACR Appropriateness Criteria (ACR AC), adding eight new topics and revising eight existing ones across its library of diagnostic imaging and interventional radiology guidance.
New topics include the following:
Autosomal Dominant Polycystic Kidney Disease
Breast Imaging During Lactation
Diagnosis and Monitoring of Sarcopenia
Hydrocephalus - Child
Management of Chylothorax
Nonthrombotic Iliac Vein Lesion
Suspected Abdominal Neoplasm - Child
Staging and Follow-up of Adrenal Cancer
The updated criteria now cover 277 topics with more than 1,350 clinical variants across 4,100 clinical scenarios, the ACR said. Spanish translations of the ACR AC are also now available through the Colegio Interamericano de Radiología, with additional translations to be posted on a rolling basis. More information is available on the ACR website.
![A normal mammogram confirmed by three-year radiologic follow-up illustrates reader-marked regions of interest (ROIs) during (A) unaided (round 1) and (B) artificial intelligence (AI)–assisted (round 2) reading. Each colored dot represents an ROI for recall by a human reader. Readers could mark more than one ROI per case, represented by multiple dots of the same color. During AI-assisted reading, the AI system displayed three visible prompts: two with suspicion of malignancy scores of 35% (left mediolateral oblique [L MLO] and craniocaudal [L CC]) and one with a suspicion of malignancy score of 10% (right craniocaudal [R CC]), shown as polygonal overlays. Without AI, six of 10 readers (60%) marked a false-positive ROI. With AI assistance, this fell to two of 10 (20%). R MLO = right mediolateral oblique.](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/07/2026-07-14-radiology-mammogram-ai-auto-bias.H0bYO8QlWs.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
