| Autor: |
Vanessa Lôbo de Carvalho, Sergio Xavier Salles-Cunha, Filipe Amorim Braga, Rita de Cássia dos Santos Moreira, Joyce Annenberg Araújo dos Santos, Thayná Lucilla Santos de Araújo, Guilherme Benjamin Brandão Pitta |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Veins and Lymphatics, Vol 7, Iss 1 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2279-7483 |
| DOI: |
10.4081/vl.2018.7069 |
| Popis: |
Characterization of tissue by ultrasonography (CATUS) is a modern-day research endeavor intended to improve visual perception and image quantification. Visual perception increases with color. Quantification focuses on pixel echo brightnesses. A previously presented case report demonstrated reappearance of lymphatic channels a few days after manual drainage. Ultrasonographic images (US) of lymphatic leg and foot were quantitated and compared to a normal extremity based on proportions of pixels in specific brightness intervals. Anatomy evaluated included control- subcutaneous and lymphatic compartments. US with 256 brightness levels were obtained at the proximal, mid and distal leg and foot. Control and lymphatic Gray Scale Medians (GSM) and histograms were compared using t-test and Chi-square statistics. Average GSM was 97±9 (SD) (82-114, n=12 images) for control, greater than 51±15 (24-69, n=12) for lymphedematous leg/foot (P99% of pixels with brightness in the muscle-fiber range (41-196), in contrast to 62% for the lymphatic extremity (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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