http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A computational model of ureteral peristalsis and an investigation into ureteral reflux
G. Hosseini,C. Ji,D. Xu,M. A. Rezaienia,E. Avital,A. Munjiza,J. J. R. Williams,J. S. A. Green 대한의용생체공학회 2018 Biomedical Engineering Letters (BMEL) Vol.8 No.1
The aim of this study is to create a computationalmodel of the human ureteral system that accuratelyreplicates the peristaltic movement of the ureter for avariety of physiological and pathological functions. Theobjectives of this research are met using our in-house fluidstructuraldynamics code (CgLes–Y code). A realisticperistaltic motion of the ureter is modelled using a novelpiecewise linear force model. The urodynamic responsesare investigated under two conditions of a healthy and adepressed contraction force. A ureteral pressure during thecontraction shows a very good agreement with correspondingclinical data. The results also show a dependencyof the wall shear stresses on the contraction velocity and itconfirms the presence of a high shear stress at the proximalpart of the ureter. Additionally, it is shown that an inefficientlumen contraction can increase the possibility of acontinuous reflux during the propagation of peristalsis.