Urodynamics pp 60-68 | Cite as

Search for Anisotropy in Specific Electrical Conductance of Ureteral Tissue as a Measure of Muscle-Fiber Structure

  • W. A. van Duyl
Conference paper

Abstract

Electrical conductance is measured in pieces of ureteral tissue in two mutually perpendicular directions by means of a four-electrode technique. No anisotropy in conductance is found. It is concluded that there is no predominant fiber orientation. Passive tissue is a capacitance which, combined with the conductance, yields a value of a time constant which is too short to be a limiting factor in the propagation of peristaltic wave.

Keywords

Anisotropy Rubber Verse 

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References

  1. Dullman J (1967) Konstruktionsanalytische Untersuchung der Ureter und der Glandula vesiculosa. Acta Anat 68:344CrossRefGoogle Scholar
  2. Duyl WA van, Coolsaet BLRA (1982) Potassium-induced contractions in pig ureter strips: consequences for helical muscle-fiber model of ureter. Urology XX: 53–58CrossRefGoogle Scholar
  3. Geddes LA, Baker LE (1967) The specific resistance of biological material. A compendium of data for muscle fibers. Med Biol Eng 5:271–293PubMedCrossRefGoogle Scholar
  4. Gielen FLH, Boon KL (1981) Measurement of the (complex) electrical conductivity and the anisotropy in skeletal muscle: a new electrode configuration. Proc 5th I.C.E.B.I., Tokyo pp 191–194Google Scholar
  5. Gosling JA, Dixon JS (1981) A three-dimensional analysis of the musculature of the upper urinary tract; abstract. Third Meeting of the Int. Soc. for Dyn. of the Upper Urinary Tract, AarhusGoogle Scholar
  6. Nagai T, Prosser CL (1963) Electrical parameters of smooth muscle cells. Am J Physiol 204(5):915–924PubMedGoogle Scholar
  7. Rush S (1962) Methods of measuring the resistivity of anisotropic conducting media in situ. J Res Nat Bur St Eng Instr 66C(3):217–222Google Scholar
  8. Satani Y (1919) Histological study of the ureter. J Urol 3:247Google Scholar
  9. Schnabel P (1967) Vierpunktmethode zur Messung der elektrischen Widerstandsanisotropie. Z Angew Phys 22:136–140Google Scholar
  10. Weast RC (1978) CRC Handbook of chemistry and physics, 55 th edn. The Chemical Rubber Company, Ohio, USA, D253Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • W. A. van Duyl
    • 1
  1. 1.Department of Biological and Medical PhysicsErasmus University RotterdamRotterdamThe Netherlands

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