Cardio Link
Holter ECG
80 Man/Months
9 months
Healthcare/Telemedicine/Device medicine
About the project
CardioLink ambition was to make the CTG Holter examination analysis a truly mobile experience. ExploreIT role was to solve the scalability and efficiency problem and develop the highly intuitive, modern-looking solution.
Approach
The most significant complication was the amount of data. There are three binary files for each examination, with one data point for every 4 ms and one JSON with 100.000+ annotations. To overcome this obstacle, we have developed a dedicated, specialised solution, including using a low-level browser API and designing a reliable download and queueing system. We have also designed and implemented an advanced data cache system ensuring smooth work with graphs and annotations, enabling zooming, distance measurement, stripes and many other editing tools to work efficiently.
Solution
Our solution allowed us to remove typicalbrowsers’ limitations and get closer to classic desktop applications’ possibilities. The result of the work is a high-quality, smooth user interface. The medical staff can view the complete study, from 24 hours in real-time. Optimisation of front-end browser app algorithm allows analysing 21 irregularities into below 1 second for three-channel 24 hours signal starting from unacceptable 12 minutes.
Technologies
Java 8
Spring
.NET
Apache Cassandra
MariaDB
React
Apache Kafka
Nginx