Abstract:
BACKGROUND:Bioimpedance spectroscopy (BIS) is commonly used in the assessment and monitoring of lymphedema. This study investigated electrodes as a source of variability that could impact the accuracy of BIS in the clinic and determined if Ag/AgCl electrocardiograph (ECG) electrodes could be used as an alternative to instrument-specific electrodes. METHODS AND RESULTS:Two types of Ag/AgCl electrodes were studied: instrument-specific bioimpedance electrodes (bioimpedance) and single tab ECG electrodes (cardiac). Six areas of investigation were addressed: intrinsic electrode resistance; electrode age; drive electrode position; electrode width/surface area; concordance between cardiac and bioimpedance electrodes; and mixing electrode types and batches. Participants included women (n = 26) and men (n = 8), both with (n = 4) and without lymphedema (n = 30). Resistance (R0) of the limbs was measured and used to calculate interlimb BIS ratios. Intrinsic electrode resistance varied between batches (p ≤ 0.001), with cardiac electrodes recording higher resistance. Electrode age had no impact on limb resistance (p = 0.85). Drive electrode position biased limb resistance (0.1%-2.3%) and electrode size/surface area had a small (≤1%), but significant effect on limb resistance (p ≤ 0.001). However, calculation of interlimb BIS ratios negated the impact of these as well as any effect of mixing electrode batches and types (p = 0.15-0.96). Electrode type had no impact on arm and leg resistance, or interlimb BIS ratios (p = 0.173-0.289). CONCLUSION:Calculation of interlimb BIS ratios improves accuracy of clinical BIS. Ag/AgCl cardiac electrodes can be used as an alternative to device-specific electrodes to measure limb resistance.
journal_name
Lymphat Res Bioljournal_title
Lymphatic research and biologyauthors
Svensson BJ,Dylke ES,Ward LC,Kilbreath SLdoi
10.1089/lrb.2018.0002subject
Has Abstractpub_date
2019-02-01 00:00:00pages
51-59issue
1eissn
1539-6851issn
1557-8585journal_volume
17pub_type
杂志文章abstract:: Background: Local tissue water in patients with breast cancer-related lymphedema (BCRL) can be assessed by measurement of the tissue dielectric constant using the MoistureMeterD Compact® (MMDC) device, or by performing the pitting test. Although these assessment methods ar...
journal_title:Lymphatic research and biology
pub_type: 杂志文章
doi:10.1089/lrb.2019.0013
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abstract::Despite the fact that the central nervous system parenchyma does not contain lymphatics, extracranial lymphatic vessels play a very important role in volumetric cerebrospinal fluid (CSF) transport. The most important extracranial location at which lymphatics gain access to CSF is in the nasal submucosa after CSF conve...
journal_title:Lymphatic research and biology
pub_type: 杂志文章,评审
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abstract:BACKGROUND:Tissue dielectric constant (TDC) and spot bioimpedance measurement (BIA) have a role in the assessment of tissue composition changes in breast cancer-related lymphedema (BCRL). Our aims were to determine whether TDC and spot BIA measures could detect inter-limb differences in BCRL, explore the relationship b...
journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
pub_type: 杂志文章,评审
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journal_title:Lymphatic research and biology
pub_type: 杂志文章,评审
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journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
pub_type: 杂志文章
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journal_title:Lymphatic research and biology
pub_type: 杂志文章,评审
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更新日期:2009-12-01 00:00:00
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journal_title:Lymphatic research and biology
pub_type: 杂志文章
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abstract:: Background: Bioimpedance spectroscopy detects unilateral lymphedema if the ratio of extracellular fluid (ECF) between arms or between legs is outside three standard deviations (SDs) of the normative mean. Detection of bilateral lymphedema, common after bilateral breast or ...
journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
pub_type: 杂志文章,评审
doi:10.1089/lrb.2008.1014
更新日期:2008-01-01 00:00:00
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journal_title:Lymphatic research and biology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2017-09-01 00:00:00
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journal_title:Lymphatic research and biology
pub_type: 杂志文章
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journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
pub_type: 杂志文章
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journal_title:Lymphatic research and biology
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journal_title:Lymphatic research and biology
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doi:10.1089/153968503768330265
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pub_type: 临床试验,杂志文章,随机对照试验
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