I-CT angiography - izingalo nemilenze

I-CT angiography ihlanganisa ukuskena kwe-CT nomjovo wedayi. Le ndlela ikwazi ukudala izithombe zemithambo yegazi ezandleni noma emilenzeni. I-CT imele i-computed tomography.

Uzolala etafuleni elincane elingena phakathi kwesithwebuli se-CT.

Uma ungaphakathi kwesithwebuli, ugongolo lomshini lwe-x-ray luzungeza wena. Izikena zesimanje "ezivunguza" zingenza isivivinyo ngaphandle kokuma.

Ikhompyutha yenza izithombe eziningi zendawo yomzimba, ebizwa ngokuthi izingcezu. Lezi zithombe zingagcinwa, zibukwe kumonitha, noma ziphrintwe kwifilimu. Amamodeli endawo yomzimba ngobukhulu obuthathu angakhiwa ngokungeza izingcezu ndawonye.

Kufanele uhlale unganyakazi ngesikhathi sokuhlolwa, ngoba ukunyakaza kufiphaza izithombe. Kungadingeka ubambe umoya wakho isikhathi esifushane.

Ukuskena kufanele kuthathe cishe imizuzu emihlanu.

Ezinye izivivinyo zidinga udayi okhethekile, obizwa ngokungafani, ukuze ujovwe emzimbeni wakho ngaphambi 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. Ungadinga ukuthatha imithi ngaphambi kokuhlolwa ukuze ugweme le nkinga.
• Ngaphambi kokuthola umehluko, tshela umhlinzeki wakho uma uthatha umuthi wesifo sikashukela i-metformin (Glucophage). Ungadinga ukuthatha izinyathelo ezingeziwe uma uthatha lo muthi.

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

Isisindo esiningi kakhulu singadala umonakalo ezingxenyeni zokusebenza zesithwebuli. Uma unesisindo esingaphezu kwamakhilogremu angama-135 (135 kilograms), khuluma nodokotela wakho ngomkhawulo wesisindo ngaphambi kokuhlolwa.

Uzodinga ukususa ubucwebe futhi ugqoke ingubo yasesibhedlela ngesikhathi sokuhlolwa kwe-CT.

Abanye abantu bangakhululeka belele etafuleni elinzima.

Umehluko onikezwe nge-IV ungadala:

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

Le mizwa ijwayelekile futhi imane iphele ngemizuzwana embalwa.

Ungadinga lokhu kuhlolwa uma unezimpawu zomthambo wegazi omncane noma ovinjiwe ezingalweni, ezandleni, emilenzeni noma ezinyaweni.

Ukuhlolwa kungenziwa futhi ukuxilonga:

• Ukunwetshwa okungavamile noma ukubhaliswa kwengxenye yomthambo (aneurysm)
• Ukopha
• Ukuvuvukala noma ukuvuvukala kwemithambo yegazi (vasculitis)
• Ubuhlungu bomlenze ngesikhathi sokuhamba noma sokuzivocavoca (ukucacisa)

Imiphumela ibhekwa njengejwayelekile uma kungabonwa zinkinga.

Umphumela ongajwayelekile uvame ukubangelwa ukuncipha nokuqina kwemithambo esezingalweni noma emilenzeni kusuka ekwakhiweni kocwecwe ezindongeni zemithambo.

I-x-ray ingakhombisa ukuvimba ezitsheni ezibangelwe yi:

• Ukunwetshwa okungajwayelekile noma ukubhaliswa kwengxenye yomthambo (aneurysm)
• Amahlule egazi
• Ezinye izifo zemithambo

Imiphumela engajwayelekile futhi ingabangelwa:

• Ukuvuvukala kwemithambo yegazi
• Ukulimala emithanjeni yegazi
• Isifo i-Buerger (thromboangiitis obliterans), isifo esingajwayelekile lapho imithambo yegazi yezandla nezinyawo ivimba khona
  

Izingozi zokuhlolwa kwe-CT zifaka:

• Ukuvezwa yimisebe
• Ukungezwani komzimba nokuqhathanisa udayi
• Ukulimala ezinso kusuka kudayi wokuqhathanisa

Izikena ze-CT zikhipha 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 nixoxe ngale ngozi uma kuqhathaniswa nenani lokuxilongwa okunembile kwenkinga. Ama-scanner amaningi anamuhla asebenzisa amasu okusebenzisa imisebe emincane.

Yazisa umhlinzeki wakho uma ngabe uke waba nokungezwani komzimba nodayi wokuqhathanisa ojojowe.

• Uhlobo oluvame kakhulu lokungafani luqukethe iodine. Uma une-iodine yokungezwani komzimba, ungahle ube nesicanucanu noma uhlanze, uthimule, ulume, noma isifuba uma uthola lolu hlobo lokungafani.
• Uma udinga ukuba nalolu hlobo lokuqhathanisa, umhlinzeki wakho angakunika ama-antihistamine (njengeBenadryl) noma ama-steroids ngaphambi kokuhlolwa.
• Izinso zisiza ukususa i-iodine emzimbeni. Ungadinga uketshezi olungeziwe ngemuva kokuhlolwa ukusiza ukususa umzimba wakho iodine uma unesifo sezinso noma isifo sikashukela.

Ngokuvamile, idayi ingabangela impendulo engathí sina yokungezwani komzimba ebizwa ngokuthi i-anaphylaxis. Lokhu kungasongela impilo. Yazisa opharetha besithwebuli ngokushesha uma unenkinga yokuphefumula ngesikhathi sokuhlolwa. Ama-scanner ane-intercom nezipikha ukuze opharetha akwazi ukukuzwa ngaso sonke isikhathi.

I-computed tomography angiography - ipheripherali; I-CTA - okuphathelene nomngcele; I-CTA - Runoff; I-PAD - CT angiography; Isifo semithambo eseceleni - i-CT angiography; I-PVD - CT angiography

• Iskena se-CT

IKauvar DS, iKraiss LW. Ukuhlukumezeka kwe-Vascular: umkhawulo. Ku: Sidawy AN, Perler BA, ama-eds. Rutherford’s Vascular Surgery and Endovascular Therapy. Umhlaka 9. IPhiladelphia, PA: Elsevier; 2019: isahluko 184.

IMelville ARI, iBelch JJF. Izinkinga ze-vasospastic zamabanga aphansi neziphakeme (into kaRaynaud) ne-vasculitis. Ku: Loftus I, Hinchliffe RJ, ama-eds. Ukuhlinzwa Kwe-Vascular ne-Endovascular: Umngane Wokuzijwayeza Kokuhlinzwa Okukhethekile. Umhlaka 6. IPhiladelphia, PA: Elsevier; 2019: isahluko 12.

Ababuyekezi JA. I-Angiography: imigomo, amasu, kanye nezinkinga. 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 78.