Abstract
A well defined step compression was applied over an area of the skin and maintained for a fixed time. The resistive force of the tissue, which was continuously recorded, decreased with time as a function of the translocation of fluid volume to the surrounding areas. The rate of decrease was proportional to the fluid mobility. Measurements on ten normal subjects and 14 oedematous patients showed marked differences in the pattern of fluid translocation. Flow rate and total volume flow under compression were calculated and found to vary with the degree of oedema. This noninvasive technique can measure the degree of oedema, which provides important information for diagnosis and treatment.
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Abbreviations
- V(t) :
-
volume of translocated fluid in timet
- F(t) :
-
tissue resistive force to deformation
- h :
-
compression depth
- A :
-
surface area
- k :
-
spring constant
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Mridha, M., Ödman, S. Noninvasive method for the assessment of subcutaneous oedema. Med. Biol. Eng. Comput. 24, 393–398 (1986). https://doi.org/10.1007/BF02442694
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DOI: https://doi.org/10.1007/BF02442694