ClearRead Xray - Compare

Riverain Technologies
ClearRead Compare is an image registration and enhancement application that accentuates interval change between current and prior chest X-ray exams by forming a subtraction image.
Information source: Vendor
Last updated: June 20, 2022

General Information

Product name ClearRead Xray - Compare
Company Riverain Technologies
Subspeciality Chest
Modality X-ray
Disease targeted Lung cancer
Key-features Multiple time-point analysis
Suggested use During: perception aid (prompting all abnormalities/results/heatmaps), interactive decision support (shows abnormalities/results only on demand)

Technical Specifications

Data characteristics
Population Adult, not pediatric
Input Current and prior PA/AP chest view, showing both lungs
Input format DICOM
Output Differences between current and prior images as grayscale values ranging from dark to light.
Output format DICOM Secondary Capture
Integration Integration in standard reading environment (PACS), Integration via AI marketplace or distribution platform
Deployment Locally on dedicated hardware, Locally virtualized (virtual machine, docker)
Trigger for analysis Automatically, right after the image acquisition
Processing time 1 - 10 minutes


Certified, Class IIa , MDR
FDA 510(k) cleared , Class II
Intended Use Statements
Intended use (according to CE) Compare is intended to generate a secondary residual image based on a current and prior chest x-ray image of the same patient, resulting in improved visibility of lung nodules. The Compare image provides adjunctive information and is not a substitute for the original PA/AP image. This device is intended to be used by trained professionals, such as physicians, radiologists, and technicians on patients with risk of having lung nodules and is not intended to be used on pediatric patients.


Market presence
On market since 12-2011
Distribution channels Sectra Amplifier Store, Aidoc aiOS, Volpara Health, GE Healthcare
Countries present (clinical, non-research use) 13
Paying clinical customers (institutes) 200+
Research/test users (institutes) 6
Pricing model Subscription, One-time license fee
Based on Number of analyses


Peer reviewed papers on performance
Non-peer reviewed papers on performance
Other relevant papers