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Last Updated:
14 April 2020

Dr CADx is a computer-aided reading system that can interpret medical images and distinguish the chest X-rays of healthy people from those with tuberculosis (TB) or lung cancer. On analysing a chest X-ray image, Dr CADx provides a likelihood score (between 0 to 100%) for the presence of TB and also generates a heat map.
Certification
Pending. South African certification and CE mark anticipated in 2021
Development Stage
Validation
Deployment
Online only
Intended Age Group
16+ years
Target Setting
Primary health centres, general hospital (above primary level), government/public sector, e.g. national TB programme, private sector
Current Market
Currently not on the market
Input
»» Can be used to read images from any kind of chest X-ray machine (vendor neutral)
»» Chest X-ray image format: JPEG, PNG, DICOM
»» Chest X-ray type: posterior-anterior chest X-ray, anterior-posterior chest X-ray
»» Other requirements: none
Output
The Dr CADx results consist of:
»» Heat map
»» A probability score for TB


1/1

Hardware
Computer interfaced to the X-ray machine and connected to the internet
Validation
No validation required for the X-ray machine
Hardware
Computer interfaced to the X-ray machine and connected to the internet
Server
None
Integration
The current version of Dr CADx cannot be integrated with client's legacy picture archiving and communication system (PACS).
Software
Any web browser
Processing Time
Less than a minute
Data Sharing & Privacy
»» Server is located in the USA. Local or national server options not currently available
»» Data are shared with the developer. DICOM images including DICOM metadata are sent to the server. Dicom meta data are not being used by the manufacturer
»» No option to de-identify input at the moment. This feature is being developed for the next version of the product
Price
»» Online solution: US$ 1 per chest X-ray; no upfront costs
»» Offline solution: US$ 1 per chest X-ray; there will be installation costs of US$ 500 per machine and users will be charged for travel and lodging with actual amount based on location
»» No difference in public or private pricing
»» Sales contact: Gift Gana at info@drcadx.com
Software Updates
»» Annual software updates
»» Updates are included in usage fees. No cost difference between private and public sector
Product Development Method
Supervised deep learning (CNN, RNN)
Training
The product was trained on thousands of chest X-rays from the USA, China, and Belarus
Reference Standard
Mixture of human reader, culture, sputum smear microscopy and GeneXpert results
Publications
Peer-reviewed publications are not yet available.
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