Ukuphuhliswa kwonyango lokuxilonga ngoku kukuvumela ukuba usungula isifo okanye ukukhubazeka kwisigaba sokuqala. Oku kusebenza nakwiinkqubo ezinzima kangaka zomzimba njengomntu wengqondo. Umgaqo wendlela yokukhangela ngokucwangcisa kusekelwe kwiindlela ze-CT kunye ne-MRI. Oku kuhambelana kwazo. Makhe sibone ukuba yintoni umehluko phakathi kwe-CT kunye ne-MRI yengqondo, kwaye kwaye yintoni esebenzayo kwaye ichanekile ngakumbi kune-MRI okanye i-CT.
Umehluko phakathi kwe-MRI ne-CT yengqondo
Ukuba uthetha ngokubanzi, ngoko phakathi kokuxilongwa kwengqondo ngo-CT kunye ne-MRI kukho impazamo ebalulekileyo, equlethwe kuyo:
- te knoloji ye sixhobo;
- ubukhulu bokubaluleka kwesixhobo.
Isenzo se-computer ye-tomograph sisekelwe kwimizila ye-x ray, eqondiswa kwiisishu, enika ingcamango yesimo somzimba, ubuninzi bayo. CT - ifowuni iyajikeleza i-axis ephezulu-umzimba wesigulane, ukuvelisa umfanekiso wesigxina esususwe (kulo mzekelo, ingqondo) kwiingqinisiso ezahlukeneyo. Amacandelo athatywayo ngexesha lophando atshwankathelwe, aqhutywe kwikhompyutheni, kwaye isiphumo sokugqibela sinikezelwa, esichazwa yingcali kwintsimi.
I-MRI ihluke ngohlobo lokuba umsebenzi wefowuni ibandakanye iindawo ezinamandla ezinamandla. Ngokwenza i-athomu ye-hydrogen, zilungelelanisa ezi ngqungquthela ezihambelana nesikhokelo se-magnetic field. I-radio-frequency pulse eveliswe yile fowuni i-perpendicular kwi-field magnetic, ukunyanzeliswa kweeseli ezixhamlayo, kwaye yilokho eyenza kube lula ukulungiselela imifanekiso emininzi. Amanqaku e-MR yanamhlanje atyhiweyo, ebaluleke kakhulu kwizigulane ezinobunzima be-claustrophobia.
Imiqondiso yokuqeshwa kwe-CT kunye ne-MRI yengqondo
Kwiigulane ezinikezelwe kwinkqubo yoviwo lweengqondo, umbuzo ubaluleke kakhulu: yintoni engcono kuneMRI okanye CT scan? Cinga ngeenkqubo zokuxilonga ezivela kwindawo yegosa lonyango.
Ukusebenzisa i-MRI, kungcono ukufunda izicubu ezinotsholongwane (imisipha, imithwalo yegazi, ingqondo, ii-disks intervertebral disks), kunye ne-CT iphumelela ngakumbi ekufundeni izicubu ezininzi (amathambo).
I-MRI ikhethwayo:
- iintsholongwane zeembrane zengqondo;
- izilonda zesisu;
- ukukrokra ukuvuvukala;
- ukuvuvukala kwezicubu zengqondo ngenxa yesifo , isifo se-sclerosis, njl.;
- utshintsho olubi kwiintliziyo ezingenakunyango, i-pituitary gland.
I-MRI iphinde ibekwe ukungahambelani kwimimandla e-radiopaque, echaphazelekayo kwi-tomography. Okubalulekileyo kunye ne-MRI kukuba akukho mijelo efundwayo. Yilokho eyenza inkqubo ikhuselekile kwabasetyhini abakhulelweyo (ngaphandle kwe-trimester yokuqala) kunye nabasetyhini abasetyhini, kunye nabantwana bexesha lokuqala lokufunda.
Ngelo xesha, i-MRI iyaphikiswa kubantu abano-plates zetsimbi, implants, spirals, njl.
I-CT inikeza ulwazi oluchanekileyo ekufumaneni:
- utshintsho lwe-atherosclerotic kwi-system ye-vascular;
- aneurysms ;
- izilonda zamathambo ezinyunyiweyo, i-paranasal sinuses, isifuba somzimba;
- iigraum ze-krikri ezichaphazela izakhi zengqondo.
Ukuba siqwalasela zombini iinkqubo ukususela kwinqanaba elithile, i-CT scan enye inxalenye yomzimba iphela imizuzu eyi-10, ngelixa i-MRI scan ithatha malunga nemizuzu engama-30.
Kukho umahluko kwiindleko zophando. I-tomography yekhompyutheni yengqondo ixabiso elincinci, kwaye umrhumo we-imagination magnetic resonance, ngokulandelanayo, uphezulu. Ngaphezu koko, i-MRI ifanelekileyo kwaye ibiza kakhulu idivayisi ye-MRI, ephakamileyo umgangatho wemifanekiso, imali eyimfuneko yokuhlawula inkqubo yolu vavanyo.