Umehluko Phakathi Kwe-CT Scans nama-MRIs: Indlela Asebenza Ngayo Nalokho Abakubonisayo

I-CT ne-MRI zisebenzisa amasu ahlukene ukuze zibonise izinto ezihlukene - futhi akukho "ngcono" kunomunye.

Okunye ukulimala noma izimo zingabonakala ngeso lenyama. Ezinye zidinga ukuqonda okujulile.

Uma umhlinzeki wakho wokunakekelwa kwezempilo esola isimo esinjengokopha kwangaphakathi, isimila, noma ukulimala kwemisipha, angase acele i-CT scan noma i-MRI.

Ukukhetha ukuthi usebenzise i-CT scan noma i-MRI kukumhlinzeki wakho wezempilo, ikakhulukazi ngokusekelwe kulokho abasola ukuthi bazokuthola.

I-CT ne-MRI isebenza kanjani? Yikuphi okungcono kakhulu? Ake sibhekisise.

I-CT scan, emfushane ye-computed tomography scan, isebenza njengomshini we-X-ray we-3D. I-CT scanner isebenzisa i-X-ray edlula esigulini iye kumtshina kuyilapho izungeza isiguli. Ithwebula izithombe eziningi, okuthi ngemva kwalokho ikhompuyutha ihlanganiswe ukuze ikhiqize isithombe se-3D sesiguli. Lezi zithombe zingasetshenziswa ngezindlela ezihlukahlukene ukuze kutholwe imibono yangaphakathi yomzimba.

I-X-ray yendabuko inganikeza umhlinzeki wakho ukubuka okukodwa kwendawo obekuyizithombe. Isithombe esimile.

Kodwa ungabheka izithombe ze-CT ukuze uthole umbono wenyoni wendawo efakwe isithombe. Noma zungeza ukuze ubuke ukusuka phambili ukuya emuva noma ohlangothini ukuya kolunye. Ungabheka ungqimba olungaphandle kakhulu lwendawo. Noma sondeza ekujuleni kwengxenye yomzimba ethathwe isithombe.

I-CT Scan: Ibukeka kanjani?

Ukuthola i-CT scan kufanele kube inqubo esheshayo nengenabuhlungu. Ulala phezu kwetafula elihamba kancane kusithwebuli seringi. Ngokuya ngezidingo zomhlinzeki wakho wokunakekelwa kwezempilo, ungase futhi udinge odayi be-introvenous. Ukuskena ngakunye kuthatha ngaphansi komzuzu.

I-CT scan: Yenzelweni?

Ngenxa yokuthi izithwebuli ze-CT zisebenzisa ama-X-ray, zingabonisa izinto ezifanayo nama-X ray, kodwa ngokunemba okukhulu. I-X-ray iwukubuka okuyisicaba kwendawo yokuthwebula, kuyilapho i-CT inganikeza isithombe esiphelele nesijulile.

Ama-CT scan asetshenziselwa ukubheka izinto ezifana nalezi: Amathambo., Amatshe, Igazi, Izitho, Amaphaphu, Izigaba zomdlavuza, izimo eziphuthumayo zesisu.

I-CT scans ingasetshenziswa futhi ukubuka izinto i-MRI engakwazi ukuzibona kahle, njengamaphaphu, igazi, namathumbu.

I-CT scan: Izingozi ezingaba khona

Ukukhathazeka okukhulu abanye abantu ababa nakho ngama-CT scan (kanye nama-X-ray alolo daba) amandla okuchayeka emisebeni.

Abanye ochwepheshe baye basikisela ukuthi imisebe ye-ionizing ekhishwa ama-CT scan ingase yandise kancane ingozi yomdlavuza kwabanye abantu. Kodwa izingozi eziqondile ziyaphikiswa. I-Food and Drug Administration ithi ngokusekelwe olwazini lwamanje lwesayensi, ingozi yomdlavuza ovela emisebeni ye-CT “ayiqiniseki ngokwezibalo.”

Nokho, ngenxa yezingozi ezingaba khona zemisebe ye-CT, abesifazane abakhulelwe ngokuvamile abakulungele ukuhlolwa kwe-CT ngaphandle kwalapho kudingekile.

Ngezinye izikhathi, abahlinzeki bezempilo bangase banqume ukusebenzisa i-MRI esikhundleni se-CT ukuze banciphise ingozi yokuchayeka emisebeni. Lokhu kuyiqiniso ikakhulukazi kubantu abanezimo zempilo ezidinga imijikelezo eminingi yokuthwebula izithombe esikhathini eside.

I-MRI

I-MRI imele i-magnetic resonance imaging. Ngamafuphi, i-MRI isebenzisa omazibuthe namaza omsakazo ukwenza izithombe ngaphakathi komzimba wakho.

Indlela eqondile esebenza ngayo ibandakanya isifundo eside se-physics. Kodwa ngamafuphi, kufana nalokhu: Imizimba yethu inamanzi amaningi, okuyi-H20. I-H ku-H20 imele i-hydrogen. I-Hydrogen iqukethe ama-proton - izinhlayiya ezifakwe kahle. Imvamisa, lawa ma-proton ajikeleza ngezindlela ezihlukene. Kodwa lapho ehlangana nozibuthe, njengasemshinini we-MRI, la ma-proton adonselwa ngakuzibuthe futhi aqale ukukleliswa.

I-MRI: Kunjani?

I-MRI ingumshini we-tubular. Ukuskena okujwayelekile kwe-MRI kuthatha imizuzu engama-30 kuye kwengama-50, futhi kufanele unganyakazi phakathi nenqubo. Umshini ungaba phezulu, futhi abanye abantu bangase bazuze ngokufaka ama-earplugs noma ukusebenzisa ama-headphone ukuze balalele umculo ngesikhathi sokuskena. Ngokuya ngezidingo zomhlinzeki wakho, angasebenzisa odayi abahlukile be-intravenous.

I-MRI: Yenzelweni?

I-MRI inhle kakhulu ekuhlukaniseni phakathi kwezicubu. Isibonelo, abahlinzeki bangasebenzisa i-CT yomzimba wonke ukuze babheke izimila. Khona-ke, kwenziwa i-MRI ukuze kuqondwe kangcono noma yiziphi izixuku ezitholakala ku-CT.

Umhlinzeki wakho angasebenzisa futhi i-MRI ukuze abheke ukulimala kwamalunga kanye nokulimala kwezinzwa.

Ezinye izinzwa zingabonakala nge-MRI, futhi ungabona ukuthi kunomonakalo noma ukuvuvukala kwemizwa ezingxenyeni ezithile zomzimba. Asikwazi ukubona inzwa ngokuqondile ku-CT P scan. Ku-CT, singabona ithambo elizungeze inzwa noma izicubu ezizungeze inzwa ukuze sibone ukuthi azinawo yini umthelela endaweni lapho silindele ukuthi inzwa ibe khona. Kodwa ngokubheka ngqo ezinzwa, i-MRI iyisivivinyo esingcono.

I-MRIs ayilungile kangako ekubhekeni ezinye izinto, njengamathambo, igazi, amaphaphu namathumbu. Khumbula ukuthi i-MRI incike ngokwengxenye ekusetshenzisweni kwamagnethi ukuthonya i-hydrogen emanzini emzimbeni. Ngenxa yalokho, izinto eziminyene njengamatshe ezinso namathambo azibonakali. Futhi ngeke lutho olugcwele umoya, njengamaphaphu akho.

I-MRI: Ingozi engaba khona

Nakuba i-MRI ingase ibe indlela engcono yokubheka izakhiwo ezithile emzimbeni, akuyona eyawo wonke umuntu.

Uma unezinhlobo ezithile zensimbi emzimbeni wakho, i-MRI ayikwazi ukwenziwa. Lokhu kungenxa yokuthi i-MRI empeleni inguzibuthe, ngakho ingase iphazamise izimila ezithile zensimbi. Lokhu kufaka phakathi amanye ama-pacemaker, ama-defibrillator noma amadivaysi e-shunt.

Izinsimbi ezifana nokushintshwa kwamalunga ngokuvamile ziphephile nge-MR. Kodwa ngaphambi kokuthola i-MRI scan, qiniseka ukuthi umhlinzeki wakho uyazi noma yiziphi izinsimbi emzimbeni wakho.

Ngaphezu kwalokho, ukuhlolwa kwe-MRI kudinga ukuthi uhlale uthule isikhathi esithile, abanye abantu abangakwazi ukukubekezelela. Kwabanye, imvelo evaliwe yomshini we-MRI ingabangela ukukhathazeka noma i-claustrophobia, okwenza isithombe sibe nzima kakhulu.

Ingabe omunye ungcono kunomunye?

I-CT ne-MRI azihlali zingcono, kuyindaba yalokho okufunayo nokuthi ukubekezelela kahle kangakanani kokubili. Izikhathi eziningi, abantu bacabanga ukuthi omunye ungcono kunomunye. Kodwa kuya ngokuthi uyini umbuzo kadokotela wakho.

Iphuzu elibalulekile: Kungakhathaliseki ukuthi umhlinzeki wakho wezempilo uyala i-CT noma i-MRI, umgomo uwukuqonda ukuthi kwenzekani emzimbeni wakho ukuze akunike ukwelashwa okungcono kakhulu.

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