Implementation of Single-Tab Electrodes for Bioimpedance Spectroscopy Measures

Area of Science:

• Biomedical Engineering
• Oncology
• Medical Diagnostics

Background:

• Bioimpedance spectroscopy (BIS) is crucial for early detection of breast cancer treatment-related lymphedema (BCRL).
• Traditional dual-tab electrodes offer consistency but may limit accessibility in certain clinical settings.
• Single-tab electrodes present a potentially more accessible alternative for BIS measurements.

Purpose of the Study:

• To evaluate the consistency and reliability of single-tab electrodes for BIS measurements compared to dual-tab electrodes.
• To assess the discriminatory capacity of single-tab electrodes in identifying BCRL in patients.
• To determine if single-tab electrodes enhance the accessibility of BIS technology in community hospitals and outpatient settings.

Main Methods:

• Upper limb BIS ratios were measured using ImpediMed L-Dex® U400 in healthy controls and BCRL patients.
• Measurements were taken using both dual-tab and single-tab electrodes to compare consistency.
• Statistical analyses included intraclass correlation coefficients (ICC), linear mixed-effects models, and Wilcoxon rank-sum tests.

Main Results:

• Single-tab electrodes demonstrated statistical interchangeability with dual-tab electrodes (ICC = 0.966).
• No significant differences were found in L-Dex ratios between single-tab and dual-tab measurements (p = 0.74).
• Single-tab electrodes were highly significant (p < 0.0001) in discriminating between BCRL patients and control subjects.

Conclusions:

• Single-tab electrodes provide consistent and reliable BIS measurements comparable to dual-tab electrodes.
• The use of single-tab electrodes can increase the accessibility of BIS for BCRL monitoring in diverse clinical environments.
• Single-tab electrodes are effective in identifying BCRL, supporting their broader clinical application.