Immediate calculation
Clear inputs, consistent units and results without unnecessary steps.
Clinical calculations, clarified
ZED Cardio brings trusted Z-scores, measurement guidance and clinical references into a focused workflow for congenital and paediatric cardiovascular imaging.
Built for focused cardiovascular imaging workflows
Why ZED Cardio
The free tools demonstrate the calculation. The app supports the complete measurement workflow around it.
Clear inputs, consistent units and results without unnecessary steps.
The dataset, formula and publication remain visible beside the output.
The full app adds how-to-measure guidance, clinical modules and pathways.
Inside the app
Paediatric echocardiographic dimensions from published reference datasets.
Open calculatorSelected paediatric longitudinal-function reference calculations.
Open calculatorFetal cardiovascular measurements and reference support.
Open calculatorCross-sectional cardiovascular dimensions for congenital imaging.
Open calculatorCondition-specific assessment pathways and criteria support.
Free and complete
Free web tools

ZED Cardio app
ZED Cardio channel
Short, focused demonstrations of ZED Cardio calculations, cardiac imaging and the measurements behind the result.
Visit YouTube channelFeatured video
Explore a left ventricular fibroma with a clear 3D cardiac view.
More from the channel
2 videos
How to Measure the Sinuses of Valsalva on Cardiac CT | ZED CardioWatch on YouTube Follow the channel for new walkthroughs and measurement tips.
Clinical transparency
ZED Quick Tools show the selected method, formula and publication. They provide calculation support for appropriately trained users and do not replace clinical judgement, local guidelines or specialist review.