Ngoku enye yeendlela eziphambili kunye nobuninzi bezobuchwephesha ezisetyenziselwa kwizifo ze-vascular i-angiography yeenqwelo ze-cerebral. Olu hlobo lukuvumela ukuba uzibonise zonke izitho zomntu kunye neempahla zaso nasiphi na isayizi, ngoko ugqirha unokukwenza isigqibo malunga nobukho be-aneurysm, ukukhutshwa kunye nezihlamba. Ukongezelela, ngokuphindaphindiweyo i-angiography isetyenziselwa ukulungiselela ukuhlinzwa.
Iinkcazo ze-angiography
Le nkqubo iyadingeka kwiimeko ezinjalo:
- intloko eqhubekayo, eyiphi indlela yendabuko ayikwazi ukuhlangabezana nayo;
- ukuziva kakubi kummandla wesibeleko;
- ukungcola, okungahambisani nokutshintsha kwimeko yomzimba;
- isicupunu, esingabangelwa kukutya;
- syncope rhoqo;
- isifo senhliziyo esiswini;
- ukuphulwa kwegazi ngegazi.
I-angiography engxamisekileyo imiselwe ukuba:
- ukuxilongwa kwe-intraoperative;
- ischemia;
- izilonda kunye nokulimala kwemithambo yegazi;
- ubunokwenzeka bokuhlaziya okanye ukuxhamla ngokuphindaphindiweyo.
I-MRI engiography yeenqwelo ze-cerebral
Le nkqubo ibandakanya ukusebenzisa i-tomograph yamagnetic, ekuvumela ukuba uthole umfanekiso ongcono. I-MR angiography isetyenziselwa i-aneurysms yeenqwelo ze-cerebral, ukuqinisekisa ubungqina be-stenosis kunye ne-occlusions. Le ndlela yindlela ekhuselekileyo yokufumana ulwazi malunga neempawu zeempahla, ukusebenza kwazo kunye neenkqubo ezenzeka kuzo. I-cerebral angiography ikuvumela ukuba uphelise imfuno yokuqhathaniswa ngokungafaniyo ukuze ufumane ulwazi malunga neempahla zengqondo. Nangona kunjalo, ukuba kuyimfuneko ukuphanda izicubu, ke ukuxhatshazwa kusetyenziswa. Isiphumo solu vavanyo ngumfanekiso weempahla kunye neenkqubo zazo ezicwangcisiweyo.
I-CT engiography yeenqwelo ze-cerebral
Le ndlela isetyenziselwa ukuqhuba isifundo seburhulumenteni yengqondo. Kwixesha lophando, kukho imifanekiso emithathu-dimensional, eyenza kube lula ukwenza imifanekiso ye-angiographic nokufunda izitho kwi-angle efanelekileyo. Ngendlela yekhompyutheni ye-angiography, ukufumana ulwazi malunga neempahla zengqondo zidlula usebenzisa into ehlukileyo ye-iodine, ekuthi, xa udlula kwizitho, ikuvumela ukuba ufumane imifanekiso enemifanekiso ngexesha lokuskena. Inzuzo ye-MSCT (i-computer ye-computer ye-angiography) ikwazi ukufunda isitya senzobuchopho ngokubanzi ukuya kwi-1 mm kwaye ifumane umfanekiso wayo naluphi na umgama kwiimpawu ezingenakufikeleleka kwiindlela eziqhelekileyo, ezifana ne-cranio-caudal.
Uviwo lulo lulandelayo:
- Ngaphambi kokuba inkqubo iqalise, ii-milliliters ezimbini zokuchasana zijojowe ngaphakathi ngenjongo yokujonga indlela iimpendulo zomzimba.
- Xa unesiqinisekiso sokungabikho komzimba , faka i-substance kwisigxina se-forearm okanye ibrashi.
- Ugqirha ubukele ukuhlukana kweempahla ngexesha elithile, ngoko uthatha imifanekiso.
- Emva kokucwangcisa imifanekiso kwiiprogram ezizodwa, jonga ngokucacileyo iinqanawa ezahlukileyo.
Ukutshatyalaliswa kweengcambu zecerebral
Njengoko le nkqubo inokukhupha ezinye iingxaki, amaqela alandelayo alandelayo avunyelwe ukuba enze uviwo:
- ukungahambisani nohlobo lwe-iodine (kule meko i-gadolinium compounds yabelwe);
- kwikhondo elibi lokugula ngengqondo;
- nezifo ezingapheliyo zangaphakathi;
- kwisigaba esichukumisayo se-myocardial infarction;
- ukuxhatshazwa kwintsilelo yokungabikho komzimba, ngenxa yokuba akunakwenzeka ukususa ukungafani emzimbeni;
- ukuba kukho iingxaki ngegazi coagulability;
- abafazi abakhulelweyo.