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Tissue viability (TiVi) imaging: temporal effects of local occlusion studies in the volar forearm

McNamara, Paul N (author)
University of Limerick, Ireland
O'Doherty, Jim (author)
Royal Surrey County Hospital, Guildford, UK
O'Connell, Marie-Louise (author)
University of Limerick
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Fitzgerald, Barry W (author)
University of Limerick, Ireland
Anderson, Chris (author)
Östergötlands Läns Landsting,Linköpings universitet,Dermatologi och venerologi,Hälsouniversitetet,Hudkliniken i Östergötland
Nilsson, Gert (author)
Linköpings universitet,Biomedicinsk instrumentteknik,Tekniska högskolan
Toll, Rani (author)
Östergötlands Läns Landsting,Linköpings universitet,Institutionen för klinisk och experimentell medicin,Hälsouniversitetet,Akutkliniken
Leahy, Martin J (author)
University of Limerick, Ireland
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 (creator_code:org_t)
2009-08-28
2010
English.
In: Journal of Biophotonics. - : John Wiley & Sons. - 1864-063X .- 1864-0648. ; 3:1-2, s. 66-74
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Tissue Viability (TiVi) imaging is a promising new technology for the assessment of microcirculation in the upper human dermis. Although the technique is easily implemented and develops large amounts of observational data, its role in the clinical workplace awaits the development of standardised protocols required for routine clinical practice. The present study investigates the use of TiVi technology in a human, in vivo, localized, skin blood flow occlusion protocol. In this feasibility study, the response of the cutaneous microcirculation after provocation on the volar surface of the forearm was evaluated using a high temporal-low spatial resolution TiVi camera. 19 healthy subjects - 10 female and 9 male - were studied after a localized pressure was applied for 5 different time periods ranging from 5 to 25 seconds. Areas corresponding to 100 x 100 pixels (2.89 cm(2)) were monitored for 60 seconds prior to, during and after each occlusion period. Our results demonstrated the removal of blood from the local area and a hyperaemic response supporting the suitability of TiVi imaging for the generation of detailed provocation response data of relevance for the physiological function of the skin microcirculation in health and disease.

Keyword

tissue viability
TiVi
biophotonics
optical imaging
occlusion
PORH
reactive hyperaemia
TECHNOLOGY
TEKNIKVETENSKAP

Publication and Content Type

ref (subject category)
art (subject category)

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