Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7119911 | Measurement | 2018 | 14 Pages |
Abstract
The SFB7 bioimpedance spectroscopy (BIS) device from ImpediMed is a widely utilized tool for clinical research in a variety of applications, marketed for the estimation of body composition in individuals. This device has a rated accuracy of 1% for measurements from 50â¯Î© to 1â¯kΩ from 3â¯kHz to 1â¯MHz, making it an ideal choice for the measurement of full-body impedance. Recent research has also used this device to collect impedance measurements from localized regions of tissue which in some cases may be below the 50â¯Î© rated value. In this work, the measurements of impedances below 50â¯Î© are compared to measurements collected from a Keysight E4990A impedance analyzer in this low impedance range. Concluding that the SFB7 device is 1% accurate for resistance measurements as low as 10â¯Î© for frequencies below 100â¯kHz and 5% accurate for frequencies to 1â¯MHz. While 1â¯Î© measurements are possible, their much higher variability decrease their expected accuracy to approximately 5% for frequencies below 100â¯kHz and 30% for frequencies up to 1â¯MHz.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Todd J. Freeborn, Ashley Milligan, Michael R. Esco,