Hauv cov hlab ntsha, cov ntshav ntws tuaj yeem tshwm sim qhov twg atherosclerotic plaques nqaim thiab sib txawv ntawm lub lumen, qhov twg cov hlab ntsha ceg lossis qhov chaw aneurysms tau ntsib. Cov lus khoov nyob rau hauv ascending aorta kuj tsim turbulent flow.
Vim li cas turbulent flow?
Tig tawm yog tshwm sim los ntawm lub zog kinetic ntau dhau ntawm cov kua dej, uas kov yeej cov nyhuv damping ntawm cov kua dej viscosity. … Nyob rau hauv cov nqe lus dav dav, nyob rau hauv turbulent flow, unsteady vortices tshwm sim ntawm ntau qhov ntau thiab tsawg uas cuam tshuam nrog ib leeg, yog li luag vim muaj kev sib txhuam ntau ntxiv.
Dab tsi ua rau cov ntshav ntws tawm hauv lub taub hau?
Kev thaiv hauv koj cov hlab ntsha uas tshwm sim los ntawm kev tsim cov roj cholesterol, rog, thiab cov khoom pov tsegtuaj yeem ua rau cov ntshav ntws tawm. Yog tias qhov no yog qhov ua rau, koj tuaj yeem hnov ib lub suab nrov hauv koj lub pob ntseg.
Koj hu li cas qhov xwm txheej ntawm cov ntshav ntws?
Cov suab nrov nrov, thaum pib ntshav ntws thaum lub cuff siab dhau los ua me me, hu ua Korotkoff suab. Aneurysms, lossis ballooning ntawm cov hlab ntsha, ua rau muaj kev kub ntxhov thiab qee zaum tuaj yeem kuaj pom nrog lub stethoscope.
Dab tsi yog yam uas hloov cov laminar ntws mus rau turbulent flow?
Kev hloov mus rau qhov kub ntxhov tuaj yeem tshwm sim ntau ntawm Reynolds tus lej, nyob ntawm ntau yam, suav nrog theem nto roughness, hloov hluav taws xob, kev co, suab nrov, thiab lwm yam cuam tshuam.
