Computer-aided detection software developer Riverain Technologies debuted its ClearRead Compare temporal comparison software in Vienna at the European Congress of Radiology (ECR).
By electronically comparing current and prior chest x-ray images, the software can help identify nodules that may be early-stage lung cancer, according to Riverain. The software, which was previously marketed under the name DeltaView, also uses bone suppression technology to transform the radiograph into a soft-tissue image without showing ribs and clavicles. Its temporal comparison technology takes two chest x-rays taken of a patient at different times and produces a third subtraction image, in which brighter or darker areas help radiologists see changes that could indicate an emerging or enlarging tumor.
ClearRead Compare may also be helpful to pinpoint small changes in patients who have frequent chest radiographs, such as to monitor patients with chronic obstructive pulmonary disease (COPD) or those with chronic pleural thickening from asbestos exposure.
The software integrates seamlessly with all PACS, Riverain said.











![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&fit=crop&h=112&q=70&w=112)






