Cardiac MRI Reference Values Calculator

A research-based tool for estimating normal cardiac MRI values based on age, sex, and body size.

Developed by Dr. Hunain Shiwani at UCL and Barts Heart Centre

Last Update: 10th April 2025

Demographics

Valid range: 20-80 years

Height & Weight
BSA

Normal range: 1.2-2.5 m²

Loading predictions data...

Results

EDV (End Diastolic Volume)
- (-.- ml - -.- ml)
ESV (End Systolic Volume)
- (-.- ml - -.- ml)
SV (Stroke Volume)
- (-.- ml - -.- ml)
EF (Ejection Fraction)
- (-.- % - -.- %)
LV Mass
- (-.- g - -.- g)

When to Use

This tool provides demographic-adjusted reference values for cardiac MRI values based on age, sex, and body size (BSA) for cardiac MRI. It generates reference values for end diastolic volume (EDV), end systolic volume (ESV), stroke volume (SV), ejection fraction (EF), and left ventricular mass (LVM) to help contextualize MRI values in relation to established reference data.

🛑 This tool is for informational and research purposes only. It is not a diagnostic device and should not be used to make clinical decisions without expert evaluation.

Important points

  • Not a diagnostic tool → Provides reference values, not a clinical diagnosis. Results should be interpreted in the context of full clinical evaluation.
  • Validated with cardiac MRI data → This tool was developed using MRI measurements, which may differ from echocardiographic findings.
  • Optimized for ages 20-80 years → Accuracy may be limited outside this range or in extreme BSA values.
  • For clinicians and researchers → This tool is intended to support research and clinical discussions rather than serve as a standalone decision-making tool.

Results

EDV (End Diastolic Volume)
- (-.- ml - -.- ml)
ESV (End Systolic Volume)
- (-.- ml - -.- ml)
SV (Stroke Volume)
- (-.- ml - -.- ml)
EF (Ejection Fraction)
- (-.- % - -.- %)
LV Mass
- (-.- g - -.- g)

Clinical Considerations

EDV (End Diastolic Volume): The volume of blood in the left ventricle at the end of diastole.

ESV (End Systolic Volume): The volume of blood in the left ventricle at the end of systole.

SV (Stroke Volume): The volume of blood ejected from the left ventricle with each heartbeat (EDV - ESV).

EF (Ejection Fraction): The percentage of blood ejected from the left ventricle with each heartbeat ((SV/EDV) × 100).

LV Mass: The mass of the left ventricular myocardium, calculated from myocardial volume × specific gravity of myocardium.