Application Note

Besides the unsurpassed repeatability, our technology also has the property of adaptability, presented here, which makes it possible to achieve accuracy nearly as good as its precision. As a reference method for defining accuracy we take chemical analysis.

Figure 1: Validation of EchoMRI Infants < 4 kg (900 kHz) on a set of 25 piglets of mass between 2 and 4.3 kg, versus chemical analysis.

Figure 2: Validation of EchoMRI Infants < 11 kg (600 kHz) on a set of 25 piglets of mass between 2 and 10.6 kg, versus chemical analysis.

Precision of EchoMRI™ System for Humans was tested in a short term (30 to 48 scans within 9 hours of one day, for each of 6 normal subjects) and a long term (69 and 90 scans within 70 days, for each of 6 normal subjects) series of measurements on human volunteers, in spring of 2008. Given the intrinsic variability of the volunteers, these numbers are upper bounds on the errors of the device proper.

Table 1: Root-mean-square (RMS) standard deviations for short term (intraday) and long term (70 days) scans of humans

Frequently Asked Questions (FAQs)

Most Asked

» How easy is it to use a device?
» How does the EchoMRI™ system work to measure fat, lean, and free water?
» Does Echo Medical Systems offer warranty on its products?
» What size of animals can be scanned?
» What are the features and benefits of EchoMRI™ systems?

More Frequently Asked Questions about ...

EchoMRI™ Systems
Learn more about the system configurations.

Measurement Procedure
If you have questions related to the measurement procedure, find answers here.

Measurement Objects
Learn about what can be measured in EchoMRI systems.

Precision and Accuracy of Measurements
Find out how precise and accurate EchoMRI systems are.

Comparisons of EchoMRI™ with Other Technologies
See a comparison of EchoMRI, DEXA, and CT.

Our References and Publications
To view a publication list and references, go here.

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Useful Links about Body Composition Analysis (BCA)

If you would like to learn more about Body Composition Analysis, click here.

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