I-CT angiography - isisu nesinqe

I-CT angiography ihlanganisa ukuskena kwe-CT nomjovo wedayi. Le ndlela ikwazi ukudala izithombe zemithambo yegazi esiswini sakho (esiswini) noma endaweni yesikhumba. I-CT imele i-computed tomography.

Uzolala etafuleni elincane elingena phakathi kwesithwebuli se-CT. Imvamisa, uzolala ngomhlane izingalo zakho ziphakanyiswe ngaphezu kwekhanda lakho.

Uma usungaphakathi kwesithwebuli, ugongolo lomshini lwe-x-ray luzungeza eduze kwakho. Izikena zesimanje "ezivunguza" zingenza isivivinyo ngaphandle kokuma.

Ikhompyutha idala izithombe ezihlukene zendawo yesisu, ebizwa ngokuthi izingcezu. Lezi zithombe zingagcinwa, zibukwe kumonitha, noma ziphrintwe kwifilimu. Izinhlobo ezinamacala amathathu wesisu zingenziwa ngokufaka izingcezu ndawonye.

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

Iskena kufanele sithathe ngaphansi kwemizuzu engama-30.

Udinga ukuba nedayi ekhethekile, ebizwa ngokuqhathanisa, efakwe emzimbeni wakho ngaphambi kokuhlolwa okuthile. 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.
• Kungadingeka nokuthi uphuze umehluko ohlukile ngaphambi kokuhlolwa. Uma uphuza umehluko uzoncika ohlotsheni lokuhlolwa okwenziwayo. Umehluko unokunambitheka okunechalky, yize abanye benokunambitheka ukuze bezwe kangcono kancane. Umehluko uzodlula emzimbeni wakho ngokusebenzisa izihlalo zakho.
• Yazisa umhlinzeki wakho wezokunakekelwa kwempilo uma ngabe uke waba nokusabela kokungafani. Ungadinga ukuthatha imithi ngaphambi kokuhlolwa ukuze uthole le nto ngokuphepha.
• Ngaphambi kokuthola umehluko, tshela umhlinzeki wakho uma uthatha umuthi wesifo sikashukela i-metformin (Glucophage). Abantu abathatha lo muthi kungadingeka bayeke ukuwuthatha isikhashana ngaphambi kokuhlolwa.

Umehluko ungadala izinkinga zezinso ekusebenzeni kweziguli ezinezinso 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.

Uzodinga ukukhumula ubucwebe bakho bese ugqoka ingubo yasesibhedlela ngesikhathi kufundwa.

Ukulala etafuleni elinzima kungahle kungakhululeki kancane.

Uma uqhathanisa ngokusebenzisa umthambo, ungahle ube:

• Ukuzwa okushisa kancane
• Ukunambitheka kwensimbi emlonyeni wakho
• Ukufudumala okufudumele komzimba wakho

Le mizwa ijwayelekile futhi iyaphela ngemizuzwana embalwa.

Ukuskena kwe-CT angiography ngokushesha kwenza izithombe ezinemininingwane yemithambo yegazi engaphakathi kwesisu noma ukhalo lwakho.

Lokhu kuhlolwa kungasetshenziselwa ukubheka:

• Ukunwetshwa okungajwayelekile noma ukubhaliswa kwengxenye yomthambo (aneurysm)
• Umthombo wokopha oqala emathunjini noma kwenye indawo esiswini noma ekhalweni
• IMisa nezicubu esiswini noma okhalweni, kufaka phakathi umdlavuza, lapho kudingeka khona ukusiza ukwelashwa
• Imbangela yobuhlungu esiswini okucatshangwa ukuthi ingenxa yokuncipha noma ukuvinjelwa komunye noma okungaphezulu kwemithambo ehambisa amathumbu amancane namakhulu
• Ubuhlungu emilenzeni okucatshangwa ukuthi bungenxa yokuncipha kwemithambo yegazi eletha imilenze nezinyawo
• Umfutho wegazi ophakeme ngenxa yokuncipha kwemithambo ehambisa igazi liye ezinso

Ukuhlolwa nakho kungasetshenziswa ngaphambili:

• Ukuhlinzwa emithanjeni yegazi yesibindi
• Ukufakelwa kwezinso

Imiphumela ibhekwa njengejwayelekile uma kungabonwa zinkinga.

Imiphumela engajwayelekile ingakhombisa:

• Umthombo wokopha ngaphakathi esiswini noma okhalweni
• Ukuncipha komthambo onikezela izinso
• Ukuncipha kwemithambo ehambisa amathumbu
• Ukuncipha kwemithambo ehambisa imilenze
• Ukushaya ibhaluni noma ukuvuvukala komthambo (aneurysm), kufaka phakathi i-aorta
• Ukudabuka odongeni lwe-aorta

Izingozi zokuhlolwa kwe-CT zifaka:

• Ukungezwani komzimba nokuqhathanisa udayi
• Ukuvezwa yimisebe
• Ukulimala kwezinso kudayi wokuqhathanisa

Ukuskena kwe-CT kukuvezela imisebe engaphezulu kwama-x-ray avamile. Ama-x-ray amaningi noma ama-CT scan ngokuhamba kwesikhathi kungandisa ingozi yomdlavuza. Noma kunjalo, ingozi evela kunoma yikuphi ukuskena okukodwa incane. Khuluma nomhlinzeki wakho wezokunakekelwa kwempilo ngale ngozi kanye nenzuzo yesivivinyo sokuthola ukuxilongwa okufanele kwenkinga yakho 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 zakho zisiza ukususa i-iodine emzimbeni. Ungadinga uketshezi olungeziwe ngemuva kokuhlolwa ukusiza ukukhipha iodine emzimbeni wakho uma unesifo sezinso noma isifo sikashukela.

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-computed tomography angiography - isisu nesinqe; I-CTA - isisu nesinqe; Umthambo we-renal - i-CTA; I-aortic - i-CTA; I-Mesenteric CTA; I-PAD - CTA; I-PVD - CTA; Isifo semithambo yegazi eseceleni - i-CTA; Isifo semithambo eseceleni; I-CTA; Isigaba - CTA

• Iskena se-CT

I-Levine MS, i-Gore RM. Izinqubo zokuthwebula izithombe ku-gastroenterology. Ku: IGoldman L, iSchafer AI, ama-eds. Imithi yeGoldman-Cecil. Umhla ka-26. IPhiladelphia, PA: Elsevier; 2020: isahluko 124.

USingh MJ, uMakaroun MS. Ama-aneurysms we-Thoracic ne-thoracoabdominal: ukwelashwa kwe-endovascular. Ku: Sidawy AN, Perler BA, ama-eds. Rutherford’s Vascular Surgery and Endovascular Therapy. Umhlaka 9. IPhiladelphia, PA: Elsevier; 2019: isahluko 78.

U-Weinstein JL, Lewis T. Usebenzisa ukungenelela okuqondiswa isithombe ekuxilongweni nasekwelapheni: i-radiology yokungenelela. Ku: Herring W, ed. Ukufunda i-Radiology: Ukuqaphela izisekelo. Umhla wesi-4. IPhiladelphia, PA: Elsevier; 2020: isahluko 29.