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Selected measurements in healthy persons of skin tissue dielectric constant as reference values for subsequent use to evaluate patients with head and neck lymphedema.
Skin tissue dielectric constant (TDC) measurements will non-invasively be made bilaterally at two neck sites, bilaterally on two forearm sites and one site at the chin sub-mental area.
Measurements are made with subjects fully clothed and seated. Measurements are made in triplicate and averaged at each site. Full measurements take about 5-7 minutest to complete. Data will be analyzed to determine the neck-to-arm ratios and chin-to-arm ratios to establish normal ranges of these parameters for subsequent use as comparisons to evaluate and track changes in patients with head and neck lymphedema.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Healthy Adults | Healthy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| TDC | Diagnostic Test | measurements |
|
| Measure | Description | Time Frame |
|---|---|---|
| Neck-to-Arm TDC ratio | Neck-to-Arm TDC ratio | one year |
| Sub-Mental-to-Arm TDC ratio | Sub-Mental-to-Arm TDC ratio | one year |
| Measure | Description | Time Frame |
|---|---|---|
| Bilateral values and Variability in TDC values | Bilateral values and Variability in TDC values | one year |
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Inclusion Criteria:
Exclusion Criteria:
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Healthy adults
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Nova Southeastern University | Fort Lauderdale | Florida | 33328 | United States |
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| ID | Term |
|---|---|
| D008209 | Lymphedema |
| D009362 | Neoplasm Metastasis |
| ID | Term |
|---|---|
| D008206 | Lymphatic Diseases |
| D006425 | Hemic and Lymphatic Diseases |
| D009385 | Neoplastic Processes |
| D009369 | Neoplasms |
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| D010335 |
| Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |