MRI

Ukuhlolwa kwe-magnetic resonance imaging (MRI) kuyindlela yokuhlola izithombe zezokwelapha esebenzisa insimu yamagnethi namaza omsakazo akhiqizwe ikhompyutha ukudala izithombe ezinemininingwane yamalungu nomzimba wakho. Izinsimbi eziningi ze-MRI zizimagnethi ezinkulu, ezinobukhulu obunjengobhethuna. Uma ulele ngaphakathi kwesinsimbi se-MRI, insimu yamagnethi ngaphakathi isebenza namaza omsakazo na-hydrogen atoms emzimbeni wakho ukudala izithombe zesigaba — njengezlice ezinqeni lokubhaka.

I-MRI iyindlela engathinti lutho yokuhlola amalungu omzimba, izicubu, kanye nesistimu yezigqamiso yochwepheshe wezokwelapha. Ivelisa izithombe ezinokucaciswa okuphezulu kwangaphakathi komzimba ezisiza ekuxilongeni izimo ezahlukahlukene.

Ngenxa yokuthi i-MRI isebenzisa ama-magnets anamandla, ukuba khona kwethusi emzimbeni wakho kungaba yingozi yokuphepha uma kudonseleke yi-magnet. Ngisho noma kungadonseliwe yi-magnet, izinto zethusi zingakwazi ukuphambanisa izithombe ze-MRI. Ngaphambi kokwenza i-MRI, cishe uzogcwalisa ifomu lemibuzo elihlanganisa ukuthi unezinto zethusi noma amadivayisi e-elekthroniki emzimbeni wakho. Ngaphandle kokuthi idivayisi onayo igunyazwe njenge-MRI safe, ungase ungakwazi ukwenza i-MRI. Amadivayisi ahlanganisa: Ama-prostheses ajoyinwe ngethusi. Ama-valve e-Artificial heart. I-defibrillator yenhliziyo efakwe. Ama-pumps okufakwa kwezidakamizwa afakwe. Ama-stimulators ezinzwa afakwe. I-pacemaker. Ama-clips ethusi. Ama-pins ethusi, izikrufu, iziplate, ama-stents noma ama-staples okuhlinzwa. Ama-cochlear implants. Ibhola, i-shrapnel noma noma iyiphi enye inhlobo yengcezu yethusi. Idivayisi ye-Intrauterine. Uma une-tattoos noma ubuqhosha obuhlala njalo, buza ukuthi kungenzeka yini ukuthi kuchaphazele i-MRI yakho. Ezinye ze-inks ezimnyama ziqukethe ithusi. Ngaphambi kokuba uhlele i-MRI, tshela udokotela wakho uma ucabanga ukuthi ukhulelwe. Imiphi yakho yemithamo yama-magnetic fields kumntwana ozalwayo ayiqondakali kahle. Ukuhlolwa okunye kungase kunconywe, noma i-MRI ingase isuswe. Tshela udokotela wakho futhi uma uncelisa, ikakhulukazi uma uzokwamukela izinto ezihambisana nayo ngesikhathi senqubo. Kubalulekile futhi ukuxoxa ngezinkinga zezinso noma isibindi nodokotela wakho kanye nomsebenzi wezobuchwepheshe, ngoba izinkinga kulezi zitho zingase zikhawulele ukusetshenziswa kwezinto ezihambisana nezinto eziqhakazile ngesikhathi sokuhlolwa kwe-MRI yakho.

Ngaphambi kokuhlolwa kwe-MRI, dla njengoba nje ubungadle njalo bese uqhubeka nokuthatha imithi yakho evamile, ngaphandle uma utshelwe ngenye indlela. Ngokuvamile uzocelwa ukuba uguqule ube yigqoka bese ususe izinto ezingase zithinte isithombe se-magnetic, ezifana nalezi: Izinto zokuhlobisa. Izipayini zezinwele. Izikhululo. Iiwashi. Iziqhwaga. Ama-dentures. Izimonyo zokuzwa. Ama-bras ane-underwire. Izimonyo ezinamahlu ametal.