Lapho siya esibhedlela, udokotela uzosinika ezinye izivivinyo zezithombe ngokwesidingo sesimo, njenge-MRI, CT, X-ray film noma Ultrasound. I-MRI, imaging ye-resonance magnetic, ebizwa ngokuthi "i-nuclear magnetic", ake sibone ukuthi yini abantu abavamile okudingeka bakwazi nge-MRI.
Ingabe ikhona imisebe ku-MRI?
Njengamanje, i-MRI iwukuphela komnyango we-radiology ngaphandle kwezinto zokuhlola imisebe, abantu abadala, izingane kanye nabesifazane abakhulelwe abangayenza. Nakuba i-X-ray ne-CT kwaziwa ukuthi kunemisebe, i-MRI iphephile uma kuqhathaniswa.
Kungani ngingakwazi ukuthwala izinto zensimbi nezikazibuthe emzimbeni wami ngesikhathi se-MRI?
Umzimba oyinhloko womshini we-MRI ungaqhathaniswa nozibuthe omkhulu. Kungakhathaliseki ukuthi umshini uvuliwe noma cha, insimu enkulu kazibuthe namandla amakhulu kazibuthe omshini ayohlala ekhona. Zonke izinto zensimbi eziqukethe insimbi, njengeziqeshana zezinwele, izinhlamvu zemali, amabhande, izikhonkwane, amawashi, imigexo, amacici nobunye ubucwebe nezingubo, kulula ukumuncwa. Izinto zikazibuthe, njengamakhadi kazibuthe, amakhadi e-IC, izixhumi zenhliziyo, ingculaza yokuzwa, omakhalekhukhwini nezinye izinto zikagesi, zifakwa uzibuthe kalula noma zilimale. Ngakho-ke, abanye abantu abaphelezelayo namalungu omndeni akumele bangene egumbini lokuskena ngaphandle kwemvume yabasebenzi bezokwelapha; Uma isiguli kufanele siphelezelwe umuntu osiphelezelayo, kufanele kuvunyelwane ngabasebenzi bezokwelapha futhi alungiswe ngokwezidingo zabasebenzi bezokwelapha, njengokungangenisi omakhalekhukhwini, okhiye, izikhwama zemali kanye nezinto zikagesi endlini yokuskena.
Izinto zensimbi nezinto zamagnetic ezimuncwa imishini ye-MRI zizoba nemiphumela emibi: okokuqala, ikhwalithi yesithombe izothinteka kakhulu, futhi okwesibili, umzimba womuntu uzolimala kalula futhi umshini uzolimala ngesikhathi sokuhlolwa. Uma ukufakelwa kwensimbi emzimbeni womuntu ilethwa emkhakheni kazibuthe, amandla kazibuthe anamandla angenza izinga lokushisa lokufakelwa likhuphuke, lishise kakhulu futhi lilimale, futhi isikhundla sokufakelwa emzimbeni wesiguli singashintsha, futhi siholele ngisho namazinga ahlukene. ukusha endaweni yokufakelwa kwesiguli, okungaba kubi njengokusha kwezinga lesithathu.
Ingabe i-MRI ingenziwa ngamazinyo okufakelwa?
Abantu abaningi abanamazinyo okufakelwa bakhathazeka ngokungakwazi ukuthola i-MRI, ikakhulukazi abantu abadala. Eqinisweni, kunezinhlobo eziningi zamazinyo okufakelwa, njengamazinyo angaguquki kanye namazinyo okufakelwa anyakazayo. Uma amazinyo okufakelwa kungeyona insimbi noma i-titanium alloy, anomthelela omncane ku-MRI. Uma amazinyo okufakelwa equkethe insimbi noma izingxenye zamagnetic, kungcono ukususa amazinyo asebenzayo kuqala, ngoba kulula ukuhamba endaweni yamagnetic futhi kuthinte izinga lokuhlola, okuzophinde kube yingozi ekuphepheni kweziguli; Uma kuyi-fixed amazinyo okufakelwa, ungakhathazeki kakhulu, ngoba amazinyo okufakelwa wona ngokwawo ngeke anyakaze, amazinyo atholakalayo mancane uma kuqhathaniswa. Isibonelo, ukwenza i-MRI yobuchopho, amazinyo okufakelwa agxilile anomthelela othile kuphela kwifilimu (okungukuthi, isithombe) esithathwe, futhi umthelela mncane kakhulu, ngokuvamile akuthinti ukuxilongwa. Kodwa-ke, uma ingxenye yokuhlolwa kwenzeka ukuthi isendaweni yamazinyo okufakelwa, isenomthelela omkhulu efilimini, futhi lesi simo sincane, futhi abasebenzi bezokwelapha badinga ukubonisana nabo endaweni yesehlakalo. Ungayeki ukudla ngoba wesaba ukuklinywa, ngoba awenzi iMRI ngoba unamazinyo okufakelwa alungisiwe.
Kungani ngizizwa ngishisa futhi ngijuluka ngesikhathi se-MRI?
Njengoba sonke sazi, omakhalekhukhwini bazoshisa kancane noma bashise ngisho nangemva kokushaya izingcingo, ukungena kwi-inthanethi noma ukudlala imidlalo isikhathi eside, okungenxa yokwamukelwa njalo nokudluliswa kwezimpawu ezibangelwa omakhalekhukhwini, kanye nabantu abathola i-MRI. zifana nomakhalekhukhwini. Ngemva kokuba abantu beqhubeka nokuthola amasiginali e-RF, amandla azodedelwa ekushiseni, ngakho bazozizwa kushisa kancane futhi bakhiphe ukushisa ngokujuluka. Ngakho-ke, ukujuluka ngesikhathi se-MRI kuvamile.
Kungani kunomsindo ongaka ngesikhathi se-MRI?
Umshini we-MRI unengxenye yangaphakathi ebizwa ngokuthi “ikhoyili ye-gradient”, ekhiqiza ukuguquguquka kwamanje, futhi ukushintshwa okubukhali kwamanje kuholela ekudlidlizeni kwe-high-frequency yekhoyili, ekhiqiza umsindo.
Njengamanje, umsindo obangelwa imishini ye-MRI ezibhedlela ngokuvamile ungama-decibel angu-65 ~ 95, futhi lo msindo ungabangela umonakalo othile ekuzweni kweziguli lapho zithola i-MRI ngaphandle kwemishini yokuvikela izindlebe. Uma ama-earplug esetshenziswa kahle, umsindo ungancipha ube ama-decibel angu-10 kuya kwangu-30, futhi ngokuvamile awukho umonakalo ekuzweni.
Ingabe udinga "ukudutshulwa" kwe-MRI?
Kukhona ikilasi lokuhlolwa ku-MRI elibizwa ngokuthi ama-enhanced scans. Ukuskena kwe-MRI okuthuthukisiwe kudinga umjovo womjovo womuthi izazi ze-radiologists eziwubiza ngokuthi “i-ejenti ehlukile,” ngokuyinhloko i-ejenti ehlukile equkethe “i-gadolinium.” Nakuba izehlakalo zokusabela okubi ngama-agent wokuqhathanisa we-gadolinium ziphansi, zisuka ku-1.5% ziye ku-2.5%, akufanele zishaywe indiva.
Ukusabela okungekuhle kwama-agent wokuqhathanisa we-gadolinium kwakuhlanganisa isiyezi, ikhanda elibuhlungu lesikhashana, isicanucanu, ukuhlanza, ukuqubuka, ukuphazamiseka kokunambitha, nokubanda endaweni yomjovo. Izehlakalo zokusabela okubi kakhulu ziphansi kakhulu futhi zingabonakaliswa njenge-dyspnea, ukwehla komfutho wegazi, isifuba somoya, i-pulmonary edema, ngisho nokufa.
Iziguli eziningi ezinemiphumela emibi kakhulu zazinomlando wesifo sokuphefumula noma isifo sokungezwani komzimba. Ezigulini ezinokwehluleka kwezinso, ama-agent ahlukile we-gadolinium angandisa ingozi ye-renal systemic fibrosis. Ngakho-ke, ama-agent e-gadolinium aphikisanayo awavunyelwe kubantu abanokukhubazeka okukhulu kwe-renal. Uma uzizwa ungaphilile ngesikhathi noma ngemva kokuhlolwa kwe-MRI, yazisa abasebenzi bezokwelapha, uphuze amanzi amaningi, futhi uphumule imizuzu engu-30 ngaphambi kokuba uhambe.
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Isikhathi sokuthumela: Mar-22-2024
