Ukuhlola Izinzuzo Zabo, Izinkomba, Nokuhluleka
Ubuchopho kanye nesistimu yezinzwa zingabonwa ngezingcingo ze- tomography (CT) zekhompyutha nokufaneka kwe-magnontic resonance (MRI) . Lapho ubhekene nesifo se-neurologic, i-neurologist esazibonela kaningi ingavame ukuthola ukuxilongwa ngaphandle kwesidingo sokuhlolwa okwengeziwe. Ngezinye izikhathi, kungaba usizo (noma ngisho nokuphuthumayo) ukuhleleka ibhethri yokuhlolwa kwe-neuroimaging ukuthola noma ukuhlola izinkinga ezingabonakali kalula.
Funda ukuthi kungani lezi zivivinyo zenziwa nokuthi kungani.
Ukuqhathanisa i-CT Scans nama-MRIs
Igama elithi neuroimaging lichaza izindlela zokubuka ubuchopho nezinye izingxenye zesimiso sezinzwa ukuze kuqinisekiswe noma kukhishwe izinsolo ze-neurologist. I-MRIs kanye ne-CT scans ngamathuluzi amabili anjalo i-neurologist izobuyela njalo.
Ukukhuluma ngokwemfuyo, i-MRI ifana nekhamera elibiza kakhulu, lochwepheshe ngenkathi i-CT scan ifana nekhamera ehlaziyekayo. Ukuqhathanisa kubaluleke kakhulu kunikezwe ukuthi izindleko ze-MRI zidlulele kakhulu kune-CT scan.
Lokhu akusho ukuthi umuntu ungcono kakhulu kunomunye. Abanye abantu bacabanga ukuthi, ngoba izinga le-imaging le-MRI liphakeme, kufanele lihlale likhetha kuqala. Kodwa lokho kubonisa ukungaqondani okujwayelekile mayelana nobuchwepheshe, kokubili ngokwamakhono abo kanye nokungaphumeleli.
Ngokubanzi, i-MRI ne-CT scan ihluke ngezindlela ezintathu ezihlukene:
- Uma isikhathi siyisisekelo. I-MRI ingathatha cishe imizuzu engama-45 ukuqedela kanti i-CT scan ingathatha imizuzu emihlanu kuya kwezingu-10 kuphela. Esikhathini esithathayo ukuthola i-MRI eyenziwe (ngoba, ukuthi, isifo segazi esingathandeki kakhulu ) umuntu angafa noma akalimele kanzima. I-MRI idinga nokuthi umuntu abe namanje isikhathi eside, okungaba nzima esimweni esiphuthumayo. Ngokuvamile i-CT scan iyindlela engcono kakhulu yezimo eziphuthumayo.
- Izinhlobo zezinto ezingavamile abazibona. Kwezinye izimo, i-CT scan ingabona kalula izinto ezilula ngaphezu kwe-MRI, kuhlanganise nokuphuma kwegazi kanye ne-bone fractures. Ngokuphambene nalokho, i-MRI ingcono kakhulu ekutholeni izilonda ezincane noma ezicashile ezifana nezindawo eziningi ze-sclerosis , i- acoustic neuromas , noma i -astrocytomas ephansi .
- Ukungafani nekhwalithi ye-imaging. I-MRIs yenza izithombe usebenzisa amagagasi amakhulu amakhulu. Izimplantshi ezithile zensimbi namadivayisi angahambelani angaphazamisa lawa maza, okwenza kube nokuhlanekezela kwezithombe. Ngomqondo ofanayo, imishayo yemisebe esetshenziswa yi-CT scan ingahlakazeka ngethambo elincane (ithi, nxazonke zobuchopho), okuholela esithombeni esinzima noma esingenakwenzeka ukuyihumusha.
Izingozi
Imithombo eyinhloko yengozi kulezi zinqubo zivela emthonjeni wokucabangela kanye nakwamanye ama-agent ahlukene. Nakhu ukuthi lezi zingozi zihluke kanjani kuzo zonke izinhlobo ze-imaging.
Ukucabanga
Ukuhlola kwe-CT kudinga ukusebenzisa i-X-ray ukudala isithombe esijikelezayo. Ngakho-ke, inani lemishanguzo elibandakanyekayo lingabhekisana, kanti ezinye izifundo zikhomba ithuba loku-1 kwabangu-300 lokuthola umdlavuza ngenxa yokuskena. Lokhu okunye okukhathazayo kubantu abasha kusukela ukuthuthukiswa komdlavuza kuthatha amashumi eminyaka ukuze kubonakale. Ngenxa yalesi sizathu, odokotela bavame ukuba baqaphe kakhulu ngokwenza i-CT scan kumntwana kunomuntu omdala osekhulile.
I-MRI, ngokuphambene, isebenzisa umlenze onamandla kakhulu ukukhuthaza ama-athomu emzimbeni womuntu. Lawo ma-athomu atholakale ngesithwebuli. Umngcipheko omkhulu we-MRI wukuthi noma yikuphi ukufakelwa kwensimbi ye-ferromagnetic kungaba yimbane ngaphansi kwethonya le-MRI bese uzama ukuvumelanisa ukugoba okuphambene nalokhu Lokhu kungenza ukuba ukufakelwa kuthunjiswe noma kudlulele.
Ama-Contra Agents
Kwezinye izimo, izazi ze-neurologists zizosebenzisa idayisi ehlukile ukuhlukanisa kangcono lokho okwenzeka ngaphakathi kobuchopho. Amadayi okungafani angasiza ekugcizeleleni okungajwayelekile kwe-vascular ezifana ne- aneurysms yobuchopho noma izilonda ezihlobene ne-MS enzima, isifo esiwumhubhe noma umdlavuza.
Kuzo zombili izingcingo ze-CT nama-MRIs, i-agent ehlukileko ingabangela izinkinga ezinkulu:
- Izikrini ze-CT zisebenzisa i-agent ehlukile engase ibe ne-iodine. Ezimweni ezithile ezingavamile, ukuvezwa kwe-iodine kungabangela kakhulu ukubhekana nokuphila kokusongela i-allergen.
- Abathengi be-MRI basebenzisa i-agent ehlukile ebizwa nge-gadolinium. Kubantu abanesifo sezinso, ukuvezwa kwe-gadolinium kungabangela isimo esingavamile kodwa esibi esibizwa nge-nephrogenic systemic fibrosis (NSF).
Izwi elivela
Kukhona okuningi okudingeka kucatshangelwe ngaphambi kokuba uhlole ukuhlolwa kwe-neuroimaging. Njengesiguli, kubalulekile njalo ukwazisa udokotela wakho nganoma yisiphi isifo sofuba, ukugxila, kanye nenkinga yezempilo (kufaka phakathi ukwelapha komdlavuza) onayo noma kungenzeka. Kumele futhi ukhombise noma yikuphi ukukhathazeka onakho mayelana nenqubo uqobo, ikakhulukazi uma une-claustrophobia noma ube nolwazi olubi esikhathini esidlule. Ezinye izindlela zingatholakala. Uma ithuluzi lokucabanga likhethwe ngokuhlakanipha futhi ngokufaka okugcwele kwesiguli, kungasiza kakhulu ekunetheziseni nasekuqinisekiseni ukuxilongwa. Khuluma nodokotela wakho noma uthole umbono wesibili, uma kudingeka.
> Umthombo:
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