Qhov sib txawv tseem ceeb ntawm ionic thiab nonionic contrast media yog tias ionic contrast media tuaj yeem yaj mus rau hauv cov khoom siv hluav taws xob thaum nws nkag mus rau hauv ib qho kev daws teeb meem, whereas nonionic contrast media tsis tuaj yeem yaj rau hauv cov khoom them thaum nws nkag mus rau hauv cov tshuaj.
Iodinated contrast media muaj nyob rau hauv ob hom xws li ionic thiab nonionic sib piv media. Cov no yog hom tshuaj tua kab mob hauv cov hlab ntsha uas muaj iodine ua ib feem tseem ceeb. Cov neeg ua haujlwm no tuaj yeem txhim kho qhov pom ntawm cov kab mob vascular thiab cov kabmob hauv cov kabmob muaj sia thaum lub sijhawm ua haujlwm radiographic. Ob qho tib si ionic thiab nonionic sib piv cov xov xwm muaj txiaj ntsig zoo hauv kev siv hluav taws xob vim tias lawv yog cov neeg ua haujlwm tsis zoo thiab muaj cov soluble zoo heev.
Ionic Contrast Media yog dab tsi?
Ionic sib piv xov xwm yog iodinated sib piv cov neeg sawv cev uas tuaj yeem cuam tshuam rau hauv cations thiab anions thaum lawv nkag mus rau hauv kev daws teeb meem. Hauv lwm lo lus, ionic contrast media tuaj yeem yaj mus rau hauv cov khoom them nqi thaum nkag mus rau hauv cov tshuaj. Hauv hom xov xwm no, txhua ob cations yog txuam nrog peb anionic Cheebtsam. Yog li, cov tshuaj no feem ntau hu ua 3: 2 compounds.
Feem ntau, ionic contrast media yog cov neeg ua haujlwm siab osmolarity sib piv. Kev txhaj tshuaj ntawm tus neeg sawv cev no tuaj yeem ua rau muaj qhov loj ntawm cov khoom uas tshwm sim hauv cov hlab ntsha. Cov ions uas los ntawm kev sib cais ntawm ionic contrast media muaj peev xwm ua kom puas cov nqi hluav taws xob uas cuam tshuam nrog lub hlwb thiab lub plawv. Qhov kev cuam tshuam no yog hu ua neurotoxicity.
Nonionic Contrast Media yog dab tsi?
Nonionic contrast media yog iodinated contrast agents uas tsis cuam tshuam rau cations thiab anions thaum nkag mus rau hauv kev daws teeb meem. Hauv lwm lo lus, nonionic sib piv cov xov xwm tsis tuaj yeem yaj mus rau hauv cov khoom raug them thaum nws nkag mus rau hauv kev daws teeb meem. Hom xov xwm no muaj ib qho nruab nrab ntawm txhua peb iodine molecules. Yog li ntawd, cov no yog hu ua 3: 1 compounds.
Ntxiv mus, feem ntau ntawm cov xov xwm nonionic tsis sib xws yog cov xov xwm tsis zoo osmolarity. Thaum cov xov xwm nonionic sib piv tau nkag mus rau hauv cov hlab ntsha, nws tuaj yeem ua rau muaj kev txav ntawm cov dej ntawm lub cev nqaij mus rau vascular system thaum sim ua kom sib npaug ntawm cov concentrations. Cov kua dej ntau ntxiv no kuj tuaj yeem ua rau cov hlab ntsha tawg.
Qhov txawv ntawm Ionic thiab Noionic Contrast Media yog dab tsi?
Iodinated contrast media muaj nyob rau hauv ob hom xws li ionic thiab nonionic sib piv media. Qhov sib txawv tseem ceeb ntawm ionic thiab nonionic contrast media yog tias ionic contrast media tuaj yeem yaj mus rau hauv cov khoom them thaum nws nkag mus rau hauv kev daws teeb meem, whereas nonionic contrast media tsis tuaj yeem yaj rau hauv cov khoom them thaum nws nkag mus rau hauv kev daws teeb meem. Ntxiv mus, ionic contrast media qhia siab osmolarity media whereas nonionic contrast media qhia low osmolarity media. Tsis tas li ntawd, cov xov xwm nonionic sib piv yog qhov sib piv tsis tshua muaj tshuaj lom tshaj li ionic contrast media; yog li ntawd, muaj kev thov siab rau hom nonionic.
Cov lus hauv qab no nthuav tawm qhov sib txawv ntawm ionic thiab nonionic sib piv xov xwm hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Ionic vs Noionic Contrast Media
Ob qho tib si ionic thiab nonionic sib piv cov xov xwm muaj txiaj ntsig zoo hauv kev siv hluav taws xob vim tias lawv yog cov neeg ua haujlwm tsis zoo uas muaj kuab heev. Qhov sib txawv tseem ceeb ntawm ionic thiab nonionic contrast media yog tias ionic contrast media tuaj yeem yaj mus rau hauv cov khoom raug them thaum nkag mus rau hauv cov tshuaj, qhov nonionic sib piv cov xov xwm tsis tuaj yeem yaj rau hauv cov khoom them thaum nkag mus rau hauv cov tshuaj. Ntxiv mus, ionic contrast media yog tshuaj lom tshaj li nonionic contrast media; yog li ntawd, muaj kev thov siab rau hom nonionic.
