I-Spiral CT angiography (i-computer tomography angiography) yindlela yokucwaninga evumela ukuboniswa kwemithambo yegazi (imithanjeni, imishanguzo) nokuhlolwa okulandelayo kwesimo sabo kanye nemvelo yokugeleza kwegazi kuzo. Le ndlela yenziwa ngokusebenzisa idivayisi ekhethekile - i-tomograph, lapho umfanekiso wesithathu wezitsha udala yi-X ray kanye nokucubungula kwikhompyutha. I-CT engiography ayiyona into engavamile, ngokuvezwa kwemisebe encane.
Izinkomba ze-CT angiography
Ngokuvamile inqubo ye-CT-angiography isetshenziselwa ukutadisha imishanguzo ye-coronary, i-vein pulmonary and arteries, i-araca ye-thoracic nesisu, i-artery carotid, imikhumbi yezinso, imithwalo ye-arteries emaphethelweni aphansi. Ukuxilongwa kunqunywe ukukhomba okungavamile kokuthuthukiswa kwamathambo, ukucindezeleka kwabo, ukuqina kwesisu kanye nokuvimbela, ezinye izicucu, kanye ne-pathologies yenhliziyo. Izimpawu eziphazamisayo eziyisizathu salolu cwaningo yilezi:
- ukuzondla njalo , ukuphathwa ikhanda;
- ukugwinya kwamalungu;
- ukuwohloka kwamehlo, ukuzwa;
- ukukhubazeka kwememori ;
- ukuphuma kwegazi, njll.
Amalungiselelo okungafani we-CT angiography
Ukwandisa umehluko wesithombe bese uthola isithombe esinembile sendlela yokujikeleza nge-CT angiography, i-agent ekhethekile ye-radiopaque equkethe i-iodine ifakwe emzimbeni. Ngenxa yalokhu, i-cannula ne-catheter zifakwa emgodini wesibindi, lapho umuthi ohlukile ozokhululwa khona ku-distenser ngesilinganiso esithile. Esikhathini esizayo, lizoxoshwa emzimbeni ngokusebenzisa izinso ngendlela yemvelo.
Izinkinga nemiphumela emibi yale nqubo zihlotshaniswa kakhulu nokusetshenziswa kwe-agent ehlukile, okungabangela ukusabela kokugula. Ngaphezu kwalokho, izidakamizwa ezisetshenzisiwe zingathinta isimo sezinso. Ngakho-ke, ngaphambi kokuhlolwa, isiguli sidinga ukuhlola okunye.