Premium
IN‐VIVO ESTIMATION OF VEIN‐WALL TENSION AND HOOP STRESS
Author(s) -
Alexander Colin James
Publication year - 1972
Publication title -
medical journal of australia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 131
eISSN - 1326-5377
pISSN - 0025-729X
DOI - 10.5694/j.1326-5377.1972.tb46798.x
Subject(s) - sitting , tension (geology) , stress (linguistics) , venography , in vivo , biomedical engineering , materials science , vein , structural engineering , medicine , surgery , engineering , composite material , compression (physics) , biology , pathology , thrombosis , linguistics , philosophy , microbiology and biotechnology
A pilot study of a technique for the in‐vivo measurement of wall tension In an individual vein is described. From this measurement stress ratios can be calculated. The technique involves pressure measurements and venography through the same needle. It is concluded that the technique Is sufficiently accurate for most purposes. In the subject studied, the stress ratios in the ground‐sitting, chair‐sitting, standing and exercising postures were approximately 1, 2.5, 3 and 2 respectively.