Video: Dab tsi yog osmolar contrast?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
osmolar sib piv media (LOCM)
Qhov piv ntawm iodine yog lub hauv paus tseem ceeb rau kev faib a sib piv tus neeg sawv cev molecule (piv txwv li qhov piv ntawm tus naj npawb ntawm iodine atoms nyob rau hauv lub molecule rau tus naj npawb ntawm osmotically active hais tias lub molecule tsim nyob rau hauv cov tshuaj).
Ua raws li qhov no hauv kev xav, dab tsi yog qhov sib txawv ntawm cov xov xwm sib txawv?
Radiocontrast xov xwm Rau radiography, uas yog raws li X-rays, iodine thiab barium feem ntau yog hom kev sib piv tus neeg sawv cev . Ntau yam hom iodinated tus neeg sawv cev sib txawv muaj nyob, nrog variations tshwm sim ntawm osmolarity, viscosity thiab cov ntsiab lus iodine kiag li.
yog visipaque siab lossis qis osmolar sib piv? Lo lus tseem ceeb: Visipaque 9 Iodixanol muaj osmolality qis tshaj plaws ntawm txhua yam muaj sib piv media (290 mOsm / kg H2O), uas sawv cev ze li ob feem peb ntawm kev txo osmolality piv nrog qis - osmolar sib piv Cov tshuaj xws li iohexol (844 mOsm / kg H2O).
Tsuas yog li ntawd, dab tsi yog qhov tsawg osmolar contrast media?
Ib qho kev nce qib loj yog kev txhim kho ntawm cov sib xyaw nonionic. Lawv yog cov monomers uas yaj hauv dej tab sis tsis sib cais. Li no, nrog tsawg hais hauv kev daws, lawv raug xaiv qis - osmolar contrast media (LOCM).
ionic contrast yog dab tsi?
Iodinated sib piv media yog a sib piv xov xwm uas muaj iodine uas yog siv nyob rau hauv radiography kom lub clarity ntawm daim duab. Ionic iodinated sib piv media tau tsim ua ntej tsis yog ionic iodinated sib piv media thiab feem ntau muaj osmolality siab.
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