Open AccessMechanics of Human Myometrium Studied with Dynamic Tests in Vivo
Author(s) -
Joelsson Ingemar
Publication year - 1972
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016347209154007
Subject(s) - myometrium , in vivo , medicine , uterus , amplitude , hysteresis , volume (thermodynamics) , biomedical engineering , physics , biology , thermodynamics , optics , condensed matter physics , microbiology and biotechnology
A technique for dynamic studies of the mechanics of the uterine musculature in vivo is described, based on the registration of pressure responses to sinusoidally imposed changes in volume. The final amplitudes are varied between 1 and 9 ml and the frequency of volume changes is selected between 0.005 and 0.1 Hz. Having defined the frequency of the spontaneous activity of the uterus, end pressure, area of hysteresis and distance between the limbs of the loop are used as parameters to characterize the mechanical properties of the myometrium. The potential of the method includes the study of the effect upon the myometrium of pharmacologic agents with oxytocic and relaxant effects.