Ishikawa, Koichi; Mishima, Yoshio; Morioka, Yasuhiko; Hara, Keiichi
July 1973
Angiology;Jul/Aug1973, Vol. 24 Issue 7, p398
Academic Journal
Of 347 cases (521 limbs), 38 cases (45 limbs) demonstrated the accordion-like shadows in the arteriography of the lower extremities. These cases were analized and the characteristics of the shadows were discussed. The shadows do not indicate the presence of a pathological state of the arterial wall, but presumably appear in a physiologic state. The problems concerning on the appearing mechanism of the shadows were discussed. Among etiological explanations in the literatures, the theory of longitudinal constriction of the arterial wall seemed to be most reliable for producing the shadows, hut further histological (structure) and biological (elasticity) studies are necessary. A critical point of the flow velocity through an accordion-like elastic tube was calculated from the relation between stress and strain in a minute part of its wall as an assumption formula.


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