Umahluko Phakathi kwe-CT Scans kunye ne-MRIs: Indlela Ezisebenza Ngayo Nezo Zibonisayo

I-CT kunye ne-MRI zisebenzisa iindlela ezahlukeneyo ukubonisa izinto ezahlukeneyo - akukho nanye kuzo "engcono" kunenye.

Ezinye iingozi okanye iimeko zinokubonwa ngeliso lenyama. Ezinye zifuna ukuqonda okunzulu.

Ukuba umniki-nkonzo wakho wezempilo ukrokrela imeko efana nokopha ngaphakathi, ithumba, okanye umonakalo wezihlunu, banokuyalela i-CT scan okanye i-MRI.

Ukukhetha ukuba uza kusebenzisa i-CT scan okanye i-MRI kuxhomekeke kumboneleli wakho wezempilo, ikakhulu kuxhomekeke kwinto abacinga ukuba baza kuyifumana.

Zisebenza njani ii-CT kunye nee-MRI? Yeyiphi efanelekileyo yokwenza ntoni? Makhe sijonge ngokusondeleyo.

I-CT scan, isishunqulelo se-computed tomography scan, isebenza njengomatshini we-3D X-ray. I-CT scanner isebenzisa i-X-ray edlula kwisigulana iye kwisixhobo sokufumanisa ngelixa ijikeleza isigulana. Ibamba imifanekiso emininzi, ethi emva koko ikhompyutha iyihlanganise ukuze ivelise umfanekiso we-3D wesigulana. Le mifanekiso inokuguqulwa ngeendlela ezahlukeneyo ukuze kufunyanwe umbono wangaphakathi womzimba.

I-X-reyi yesiqhelo inganika ugqirha wakho ingcali ukujonga indawo eyayinemifanekiso. Yifoto engashukumiyo.

Kodwa ungajonga imifanekiso ye-CT ukuze ufumane umbono wentaka wendawo ebonisiweyo. Okanye ujikeleze ujonge ukusuka phambili ukuya ngasemva okanye kwicala ukuya kwelinye. Ungajonga umaleko ongaphandle wendawo. Okanye usondeza nzulu ngaphakathi kwenxalenye yomzimba ebonisiweyo.

I-CT Scan: Ijongeka njani?

Ukufumana i-CT scan kufuneka kube yinkqubo ekhawulezayo nengenabuhlungu. Ulala etafileni ehamba kancinci kwi-ring scanner. Ngokuxhomekeke kwiimfuno zomboneleli wakho wezempilo, unokufuna needayi zokudibanisa imithambo yegazi. I-scan nganye ithatha ngaphantsi komzuzu.

I-CT scan: Yenzelwe ntoni?

Ngenxa yokuba ii-CT scanners zisebenzisa ii-X-reyi, zinokubonisa izinto ezifanayo nee-X-reyi, kodwa ngokuchanekileyo ngakumbi. I-X-reyi yindlela ethe tyaba yokubona indawo yokufota, ngelixa i-CT inokubonelela ngomfanekiso opheleleyo nonzulu ngakumbi.

Ii-CT scans zisetyenziselwa ukujonga izinto ezinje: Amathambo, Amatye, Igazi, Amalungu, Imiphunga, Amanqanaba oMhlaza, Iingxamiseko zesisu.

Ii-CT scans zingasetyenziselwa ukujonga izinto ezingenakubonwa kakuhle yi-MRI, ezifana nemiphunga, igazi, kunye namathumbu.

I-CT scan: Iingozi ezinokubakho

Eyona nkxalabo inkulu abanye abantu abanayo ngee-CT scans (kunye nee-X-reyi) kukuba abantu banokuchaphazeleka yimitha.

Ezinye iingcali zithi i-ionizing radiation ekhutshwa yi-CT scans inokunyusa kancinci umngcipheko womhlaza kwabanye abantu. Kodwa iingozi ezichanekileyo ziyaphikiswana. I-Food and Drug Administration ithi ngokusekelwe kulwazi lwesayensi lwangoku, umngcipheko womhlaza ovela kwi-CT radiation “awuqinisekanga ngokwezibalo.”

Nangona kunjalo, ngenxa yeengozi ezinokubakho zemitha ye-CT, abafazi abakhulelweyo abaqhelekanga ukujongwa nge-CT scans ngaphandle kokuba kuyimfuneko.

Ngamanye amaxesha, ababoneleli bezempilo banokugqiba ekubeni basebenzise i-MRI endaweni ye-CT ukunciphisa umngcipheko wokuvezwa yimitha. Oku kuyinyani ngakumbi kubantu abaneengxaki zempilo ezifuna ukwenziwa imifanekiso emininzi kangangexesha elide.

I-MRI

I-MRI imele i-magnetic resonance Imaging. Ngamafutshane, i-MRI isebenzisa iimagnethi kunye namaza erediyo ukwenza imifanekiso ngaphakathi emzimbeni wakho.

Indlela esebenza ngayo ibandakanya isifundo eside sefiziksi. Kodwa ngamafutshane, ifana nale: Imizimba yethu inamanzi amaninzi, oko kukuthi i-H20. I-H kwi-H20 imele i-hydrogen. I-Hydrogen inee-protons — ii-particles ezitshajiweyo kakuhle. Ngokwesiqhelo, ezi protons zijikeleza kumacala ahlukeneyo. Kodwa xa zidibana nemagnethi, njengakumatshini we-MRI, ezi protons zitsalwa ziye kwimagnethi kwaye ziqale ukuma zilungelelene.

I-MRI: Ingaba kunjani?

I-MRI yimatshini ethwala iityhubhu. I-MRI scan eqhelekileyo ithatha malunga nemizuzu engama-30 ukuya kwengama-50, kwaye kufuneka uhlale ungashukumi ngexesha lenkqubo. Umatshini unokuba nesandi esikhulu, kwaye abanye abantu banokungenelwa kukunxiba ii-earplugs okanye ukusebenzisa ii-headphones ukumamela umculo ngexesha le-scan. Ngokuxhomekeke kwiimfuno zomboneleli wakho, banokusebenzisa iidayi zokudibanisa imithambo yegazi.

I-MRI: Yenzelwe ntoni?

I-MRI ilungile kakhulu ekwahlukaniseni izicubu. Umzekelo, ababoneleli ngeenkonzo banokusebenzisa i-CT yomzimba wonke ukukhangela iithumba. Emva koko, i-MRI yenziwa ukuze kuqondwe ngcono naziphi na iziqwenga ezifumaneka kwi-CT.

Ugqirha wakho angasebenzisa i-MRI ukujonga umonakalo wamalungu kunye nomonakalo wemithambo-luvo.

Eminye imithambo-luvo inokubonwa nge-MRI, kwaye unokubona ukuba kukho umonakalo okanye ukudumba kwimithambo-luvo kwiindawo ezithile zomzimba. Asinakuyibona ngqo imithambo-luvo kwi-CT P scan. Kwi-CT, sinokubona ithambo elijikeleze imithambo-luvo okanye izicubu ezijikeleze imithambo-luvo ukuze sibone ukuba zinayo na impembelelo kwindawo esilindele ukuba imithambo-luvo ibe kuyo. Kodwa xa sijonga ngqo imithambo-luvo, i-MRI luvavanyo olungcono.

Ii-MRI azilunganga kangako ekujongeni ezinye izinto, njengamathambo, igazi, imiphunga kunye namathumbu. Khumbula ukuba i-MRI ixhomekeke ekusetyenzisweni kweemagnethi ukuze ichaphazele i-hydrogen emanzini emzimbeni. Ngenxa yoko, izinto ezixineneyo ezifana namatye ezintso kunye namathambo azibonakali. Akukho nto izaliswe ngumoya, njengemiphunga yakho.

I-MRI: Umngcipheko onokubakho

Nangona i-MRI isenokuba yindlela engcono yokujonga izakhiwo ezithile emzimbeni, ayilungelanga wonke umntu.

Ukuba uneentlobo ezithile zesinyithi emzimbeni wakho, i-MRI ayinakwenziwa. Oku kungenxa yokuba i-MRI ngokuyintloko yimagnethi, ngoko ke inokuphazamisana nee-implants ezithile zesinyithi. Ezi ziquka ezinye ii-pacemakers, ii-defibrillators okanye izixhobo ze-shunt.

Iintsimbi ezifana nokufakelwa amalungu endaweni yawo zihlala zikhuselekile kwi-MR. Kodwa ngaphambi kokuba wenze i-MRI scan, qiniseka ukuba ugqirha wakho uyazi naziphi na iintsimbi emzimbeni wakho.

Ukongeza, uvavanyo lwe-MRI lufuna ukuba uhlale ungashukumi ixesha elithile, nto leyo abanye abantu abangenakuyinyamezela. Kwabanye, indlela evaliweyo yomatshini we-MRI inokubangela ixhala okanye i-claustrophobia, nto leyo eyenza ukuba ukufota kube nzima kakhulu.

Ngaba enye ingcono kunenye?

I-CT kunye ne-MRI azisoloko zingcono, ngumbandela wokuba ufuna ntoni kwaye uzinyamezela njani zombini. Amaxesha amaninzi, abantu bacinga ukuba enye ingcono kunenye. Kodwa kuxhomekeke kakhulu kumbuzo kagqirha wakho.

Ingongoma ephambili: Nokuba umniki-nkonzo wakho wezempilo uyalela i-CT okanye i-MRI, injongo kukuqonda okwenzekayo emzimbeni wakho ukuze akunike unyango olungcono.

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