Umehluko Phakathi Kwe-CT Scans Ne-MRIs: Indlela Ezisebenza Ngayo Nalokho Ezikubonisayo

I-CT ne-MRI zisebenzisa amasu ahlukene ukukhombisa izinto ezahlukene - akukho nanye kuzo "engcono" kunenye.

Ezinye izimo noma ukulimala kungabonakala ngeso lenyama. Ezinye zidinga ukuqonda okujulile.

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

Ukukhetha ukuthi uzosebenzisa i-CT scan noma i-MRI kuncike kumhlinzeki wakho wezempilo, ikakhulukazi kuncike kulokho abasola ukuthi bazokuthola.

I-CT ne-MRI zisebenza kanjani? Yikuphi okungcono kakhulu kulokho? Ake sibheke kabanzi.

I-CT scan, efushaniswa ne-computed tomography scan, isebenza njengomshini we-3D X-ray. I-CT scanner isebenzisa i-X-ray edlula esigulini iye kumshini wokuthola idatha ngenkathi ijikeleza isiguli. Ithwebula izithombe eziningi, ezihlanganiswa yikhompyutha ukuze ikhiqize isithombe se-3D sesiguli. Lezi zithombe zingashintshwa ngezindlela ezahlukene ukuze kutholakale imibono yangaphakathi yomzimba.

I-X-ray yendabuko inganika umhlinzeki wakho ukubuka indawo eyayinezithombe. Kuyisithombe esingaguquki.

Kodwa ungabheka izithombe ze-CT ukuze uthole umbono wenyoni wendawo ethathwe isithombe. Noma ujikeleze ukuze ubheke kusukela phambili kuya emuva noma ohlangothini oluya kolunye. Ungabheka ungqimba olungaphandle lwendawo. Noma usondeze ngaphakathi kwengxenye yomzimba ethathwe isithombe.

I-CT Scan: Ibukeka kanjani?

Ukuthola i-CT scan kufanele kube inqubo esheshayo nengenabuhlungu. Ulala etafuleni elihamba kancane ngesikena seringi. Kuye ngezidingo zomhlinzeki wakho wezempilo, ungase udinge namadayi okuhlukanisa ngemithambo yegazi. Ukuskena ngakunye kuthatha isikhathi esingaphansi komzuzu.

I-CT scan: Yenzelwe ini?

Ngenxa yokuthi ama-CT scanner asebenzisa ama-X-ray, angabonisa izinto ezifanayo nama-X-ray, kodwa ngokunemba okukhulu. I-X-ray iwumbono oqondile wendawo yokuthwebula izithombe, kanti i-CT inganikeza isithombe esiphelele nesijulile.

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

Ama-CT scan angasetshenziswa futhi ukubheka izinto i-MRI engaziboni kahle, njengamaphaphu, igazi, namathumbu.

I-CT scan: Izingozi ezingaba khona

Ukukhathazeka okukhulu abanye abantu abanakho nge-CT scan (kanye ne-X-ray) ukuthi kungenzeka ukuthi bavezwe yimisebe.

Abanye ochwepheshe basikisele ukuthi imisebe ye-ionizing ekhishwa yi-CT scans ingayandisa kancane ingozi yomdlavuza kwabanye abantu. Kodwa izingozi eziqondile ziyaphikiswana. I-Food and Drug Administration ithi ngokusekelwe olwazini lwesayensi lwamanje, ingozi yomdlavuza ebangelwa imisebe ye-CT “ayiqinisekile ngokwezibalo.”

Kodwa-ke, ngenxa yezingozi ezingaba khona zokukhishwa kwemisebe ye-CT, abesifazane abakhulelwe abavamile ukufanela ukuskena kwe-CT ngaphandle uma kudingekile.

Ngezinye izikhathi, abahlinzeki bezempilo bangase banqume ukusebenzisa i-MRI esikhundleni se-CT ukunciphisa ingozi yokuchayeka emisebeni. Lokhu kuyiqiniso ikakhulukazi kubantu abanezimo zempilo ezidinga ukuthwetshulwa izithombe izikhathi eziningi isikhathi eside.

I-MRI

I-MRI imele i-magnetic resonance Imaging. Ngamafuphi, i-MRI isebenzisa omayibuthe namagagasi omsakazo ukudala izithombe emzimbeni wakho.

Indlela esebenza ngayo ihilela isifundo eside sefiziksi. Kodwa kafushane, kufana nalokhu: Imizimba yethu iqukethe amanzi amaningi, okungukuthi i-H20. I-H ku-H20 imele i-hydrogen. I-Hydrogen iqukethe ama-proton — izinhlayiya ezishajelwe kahle. Ngokuvamile, la ma-proton ajikeleza ngezindlela ezahlukene. Kodwa uma ehlangana nomagnet, njengasemshinini we-MRI, la ma-proton adonswa aye kumagnet bese eqala ukuma ngokulandelana.

I-MRI: Kunjani?

I-MRI iyimishini ethwala amashubhu. I-MRI scan ejwayelekile ithatha imizuzu engama-30 kuya kwengama-50, futhi kumelwe uhlale unganyakazi ngesikhathi senqubo. Umshini ungaba nomsindo omkhulu, futhi abanye abantu bangazuza ngokugqoka ama-earplug noma ukusebenzisa ama-headphone ukulalela umculo ngesikhathi sokuskena. Kuye ngezidingo zomhlinzeki wakho, bangasebenzisa ama-intravenous contrast dyes.

I-MRI: Yenzelwe ini?

I-MRI inhle kakhulu ekuhlukaniseni izicubu. Isibonelo, abahlinzeki bangasebenzisa i-CT yomzimba wonke ukubheka izimila. Ngemuva kwalokho, kwenziwa i-MRI ukuze kuqondwe kangcono noma yiziphi izingqimba ezitholakala ku-CT.

Umhlinzeki wakho angasebenzisa ne-MRI ukubheka umonakalo wamalunga kanye nomonakalo wezinzwa.

Eminye imizwa ingabonakala nge-MRI, futhi ungabona ukuthi kukhona umonakalo noma ukuvuvukala kwemizwa ezingxenyeni ezithile zomzimba. Asikwazi ukubona imizwa ngqo ku-CT P scan. Ku-CT, singabona ithambo elizungeze imizwa noma izicubu ezizungeze imizwa ukuze sibone ukuthi zinawo yini umthelela endaweni lapho silindele khona imizwa. Kodwa uma ubheka ngqo imizwa, i-MRI iyisivivinyo esingcono.

Ama-MRI awakwazi kahle ukubuka ezinye izinto, njengamathambo, igazi, amaphaphu kanye namathumbu. Khumbula ukuthi i-MRI incike ekusetshenzisweni kwamagnethi ukuze kuthonye i-hydrogen emanzini emzimbeni. Ngenxa yalokho, izinto eziqinile njengamatshe ezinso namathambo azibonakali. Ngisho nanoma yini egcwele umoya, njengamaphaphu akho ngeke ivele.

I-MRI: Ingozi engaba khona

Nakuba i-MRI ingaba yindlela engcono yokubheka izakhiwo ezithile emzimbeni, ayilungele wonke umuntu.

Uma unezinhlobo ezithile zensimbi emzimbeni wakho, i-MRI ayinakwenziwa. Lokhu kungenxa yokuthi i-MRI empeleni iyimagnethi, ngakho-ke ingaphazamisana nokufakelwa kwensimbi ethile. Lokhu kufaka phakathi amanye ama-pacemaker, ama-defibrillator noma amadivayisi e-shunt.

Izinsimbi ezifana nokufakelwa amalunga ngokuvamile ziphephile ku-MR. Kodwa ngaphambi kokwenza i-MRI scan, qiniseka ukuthi udokotela wakho uyazi nganoma yiziphi izinsimbi emzimbeni wakho.

Ngaphezu kwalokho, ukuhlolwa kwe-MRI kudinga ukuthi uhlale unganyakazi isikhathi esithile, okuyinto abanye abantu abangenakuyibekezelela. Kwabanye, ukuvalwa komshini we-MRI kungabangela ukukhathazeka noma i-claustrophobia, okwenza ukuthwebula izithombe kube nzima kakhulu.

Ingabe enye ingcono kunenye?

I-CT ne-MRI azihlali zingcono, kuyindaba yokuthi ufunani nokuthi ukubekezelela kahle kangakanani kokubili. Izikhathi eziningi, abantu bacabanga ukuthi okunye kungcono kunokunye. Kodwa kuncike kakhulu ekutheni umbuzo kadokotela wakho uthini.

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

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