Body Composition Reference Values: Z-Score Calculator

Marquardt JP, Tonnesen PE, Mercaldo ND, Graur A, Allaire B, Bouxsein ML, Samelson EJ, Kiel DP, Fintelmann FJ. Subcutaneous and Visceral Adipose Tissue Reference Values From the Framingham Heart Study Thoracic and Abdominal CT. Invest Radiol. 2024 Jul 25. doi: 10.1097/RLI.0000000000001104. Epub ahead of print. PMID: 39047288.

The publication featured above describes adipose tissue reference values. We offer a web interface that enables anyone to compare individual measurements of adipose tissue and skeletal muscle against the metrics of the study population.

The reference values for skeletal muscle have previously been described by the publication below.

Tonnesen PE, Mercaldo ND, Tahir I, Dietrich ASW, Amari W, Graur A, Allaire B, Bouxsein ML, Samelson EJ, Kiel DP, Fintelmann FJ. Muscle Reference Values from Thoracic and Abdominal CT for Sarcopenia Assessment: The Framingham Heart Study. Invest Radiol. 2024 Mar 1;59(3):259-270. doi: 10.1097/RLI.0000000000001012. Epub 2023 Sep 18. PMID: 37725490; PMCID: PMC10920396.

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The web application is running on the open-source version of Shiny Server. It requires some time to start and may run slowly. A strong server load can lead to additional loading time, and we recommend visiting the site again at a different time point. If the problem persists, please contact the corresponding author of the publication or file the issue on GitHub. Alternatively, follow the guide below on running the app offline.

Comparing batches of data

When trying to compare a list of values, we strongly recommend to do so locally. On GitHub, we offer an R package that allows for comparison of batches of data, as well as the adipose tissue models. Please refer to the guide below for setting up a local version of the process.

Running the app offline.

Installing the R package on your device is easy. The exact procedure is described in the repository on GitHub.