I-CT angiography - ikhanda nentamo

I-CT angiography (CTA) ihlanganisa ukuskena kwe-CT nomjovo wedayi. I-CT imele i-computed tomography. Le ndlela ikwazi ukudala izithombe zemithambo yegazi ekhanda nasentanyeni.

Uzocelwa ukuba ulale etafuleni elincane elingena phakathi kwesithwebuli se-CT.

Ngenkathi ungaphakathi kwesithwebuli, ugongolo lomshini lwe-x-ray luzungeza wena.

Ikhompyutha idala izithombe eziningi ezihlukene zendawo yomzimba, ezibizwa ngokuthi izingcezu. Lezi zithombe zingagcinwa, zibukwe kumonitha, noma ziphrintwe kwifilimu. Amamodeli amathathu-ntathu endawo yekhanda nentamo angakhiwa ngokufaka izingcezu ndawonye.

Kufanele uthule ngesikhathi sokuhlolwa, ngoba ukunyakaza kubangela izithombe ezifiphalisiwe. Ungatshelwa ukuthi ubambe umoya wakho isikhathi esifushane.

Ukuskena okuphelele ngokuvamile kuthatha imizuzwana embalwa kuphela. Ama-scanner amasha angakwazi ukufanekisela wonke umzimba wakho, ikhanda nozwane, ngemizuzwana engaphansi kwengu-30.

Izivivinyo ezithile zidinga udayi okhethekile, obizwa ngokuqhathanisa, ukulethwa emzimbeni ngaphambi kokuqala kokuhlolwa. Umehluko usiza izindawo ezithile ukuthi zibonakale kangcono kuma-x-ray.

• Umehluko unganikezwa ngomthambo (IV) osesandleni sakho noma engalweni. Uma kusetshenziswa umehluko, ungacelwa futhi ukuthi ungadli noma uphuze noma yini amahora amane kuya kwayisithupha ngaphambi kokuhlolwa.
• Yazisa umhlinzeki wakho wezokunakekelwa kwempilo uma ngabe uke waba nokusabela kokungafani. Kungase kudingeke ukuthi uthathe imithi ngaphambi kokuhlolwa ukuze uyithole ngokuphepha.
• Ngaphambi kokuthola umehluko, tshela umhlinzeki wakho uma uthatha umuthi wesifo sikashukela i-metformin (Glucophage). Ungadinga ukuthatha ezinye izinyathelo zokuqapha.

Umehluko ungadala izinkinga zezinso kubantu abanezinso ezingasebenzi kahle. Khuluma nomhlinzeki wakho uma unomlando wezinkinga zezinso.

Isisindo esiningi kakhulu singalimaza isithwebuli. Uma unesisindo esingaphezu kwamakhilogremu angama-300 (135 kilograms), khuluma nomhlinzeki wakho ngomkhawulo wesisindo ngaphambi kokuhlolwa.

Uzocelwa ukuthi ususe ubucwebe futhi ugqoke ingubo yasesibhedlela ngesikhathi kufundwa.

Abanye abantu bangase bangakhululeki ngokulala etafuleni eliqinile.

Uma uqhathanisa ngokusebenzisa umthambo, ungahle ube:

• Umuzwa ovuthayo omncane
• Ukunambitheka kwensimbi emlonyeni wakho
• Ukufudumala okufudumele komzimba wakho

Lokhu kujwayelekile futhi kuvame ukuphela ngemizuzwana embalwa.

I-CTA yekhanda ingenziwa ukubheka imbangela ye:

• Izinguquko ekucabangeni nasekuziphatheni
• Kunzima ukuphimisa amagama
• Isiyezi noma i-vertigo
• Ukubona kabili noma ukulahleka kombono
• Ukuquleka
• Ubuhlungu bekhanda, lapho unezinye izimpawu noma izimpawu ezithile
• Ukuzwa ukulahlekelwa (kwabanye abantu)
• Ukuba ndikindiki noma ukuncinza, imvamisa ebusweni noma ekhanda
• Izinkinga zokugwinya
• Unhlangothi
• Ukuhlaselwa kwe-ischemic kwesikhashana (i-TIA)
• Ubuthakathaka engxenyeni eyodwa yomzimba wakho

I-CTA yentamo nayo ingenziwa:

• Ngemuva kokuhlukumezeka entanyeni ukubheka ukulimala emithanjeni yegazi
• Ngokuhlela ngaphambi kokuhlinzwa komthambo we-carotid
• Ngokuhlelela ukuhlinzwa kwesimila ebuchosheni
• Ngokusolwa kwe-vasculitis (ukuvuvukala kwezindonga zomthambo wegazi)
• Ngemithambo yegazi esolwayo ebuchosheni

Imiphumela ibhekwa njengejwayelekile uma kungabonwa zinkinga.

Imiphumela engajwayelekile ingabangelwa:

• Imithambo yegazi engajwayelekile (i-arteriovenous malformation).
• Ukopha ebuchosheni (ngokwesibonelo, i-subdural hematoma noma indawo yokopha).
• Isigaxa sobuchopho noma okunye ukukhula (isisindo).
• Unhlangothi.
• Imithambo ye-carotid emincane noma evinjiwe. (Imithambo ye-carotid inikeza ukunikezwa kwegazi okuyinhloko ebuchosheni bakho. Zitholakala ohlangothini ngalunye lwentamo yakho.)
• Umthambo we-vertebral omncane noma ovinjelwe entanyeni. (Imithambo ye-vertebral inikeza ukugeleza kwegazi emuva kobuchopho.)
• Ukudabuka odongeni lomthambo (ukuhlukaniswa).
• Indawo ebuthakathaka odongeni lwesitsha segazi ebangela ukuthi umthambo wegazi uqhume noma ibhaluni liphume (aneurysm).

Izingozi zokuhlolwa kwe-CT zifaka:

• Ukuvezwa yimisebe
• Ukusabela okwe-allergen kudayi wokuqhathanisa
• Ukulimala kwezinso kudayi

Izikena ze-CT zisebenzisa imisebe eminingi kunama-x-ray avamile. Ukuba nama-x-ray amaningi noma ama-CT scan ngokuhamba kwesikhathi kungakhuphula ingozi yokuba nomdlavuza. Noma kunjalo, ingozi evela kunoma yikuphi ukuskena okukodwa incane. Wena nomhlinzeki wakho kufanele nilinganise le ngozi ngezinzuzo zokuthola ukuxilongwa okulungile kwenkinga yezokwelapha. Ama-scanner amaningi anamuhla asebenzisa amasu okusebenzisa imisebe emincane.

Abanye abantu banokungezwani komzimba nokuqhathanisa udayi. Yazisa umhlinzeki wakho uma ngabe uke waba nokungezwani komzimba nodayi wokuqhathanisa ojojowe.

• Uhlobo oluvame kakhulu lokungafani olunikezwe emthanjeni luqukethe iodine. Uma une-iodine yokungezwani komzimba, ungahle ube nesicanucanu noma uhlanze, uthimule, ulume, noma isifuba uma uthola lolu hlobo lokungafani.
• Uma kufanele unikezwe umehluko onjalo, umhlinzeki wakho angakunika ama-antihistamine (njengeBenadryl) noma ama-steroids ngaphambi kokuhlolwa.
• Izinso zisiza ukususa i-iodine emzimbeni. Abantu abanesifo sezinso noma isifo sikashukela bangadinga ukuthola uketshezi oluthe xaxa ngemuva kokuhlolwa ukusiza ukukhipha iodine emzimbeni.

Imvamisa, idayi ingadala ukusabela okweqile okusongela impilo okubizwa nge-anaphylaxis. Tshela opharetha wesithwebuli khona manjalo uma unenkinga yokuphefumula ngesikhathi sokuhlolwa. Ama-scanner eza ne-intercom nezipikha, ngakho-ke opharetha angakuzwa ngaso sonke isikhathi.

I-CT scan inganciphisa noma igweme isidingo sezinqubo ezihlaselayo zokuthola izinkinga kugebhezi. Le ngenye yezindlela eziphephe kakhulu zokufunda ikhanda nentamo.

Ezinye izivivinyo ezingenziwa esikhundleni se-CT scan yekhanda zifaka:

• I-MRI yekhanda
• Ukuskena kwekhanda kwePostron emission tomography (PET)

I-computed tomography angiography - ubuchopho; I-CTA - ugebhezi; I-CTA - i-cranial; Inhloko ye-TIA-CTA; Inhloko ye-Stroke-CTA; I-computed tomography angiography - intamo; I-CTA - intamo; Umthambo we-Vertebral - i-CTA; I-Carotid artery stenosis - i-CTA; I-Vertebrobasilar - i-CTA; Ukusakazwa kwangemuva kweschemia - i-CTA; Intamo ye-TIA - CTA; Unhlangothi - CTA entanyeni

I-Barras CD, iBhattacharya JJ. Isimo samanje sokucabanga kobuchopho nezici ze-anatomical. Ku: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, ama-eds. I-Grainger & Allison's Diagnostic Radiology: Incwadi Yokufunda Ngezithombe. Umhla wesi-7. IPhiladelphia, PA: Elsevier; 2021: isahluko 53.

I-Wippold FJ, i-Orlowski HLP. I-Neuroradiology: ukwenziwa kwe-neuropathology eyedlulele. Ku: Perry A, Brat DJ, ama-eds. I-Neuropathology Yokuhlinzwa Esebenzayo: Indlela Yokuxilonga. Okwesibili. IPhiladelphia, PA: Elsevier; 2018: isahluko 4.