Kusiyanisa dhayi ndiro mhinduro inoshandiswa kujekesa zvivako zvakananga kana kutarisa pamufananidzo wemuviri. Radiocontrast vashandi zvinhu zvinoshandiswa mune zvidzidzo zvakadai se-ray-ray, fluoroscopy, uye computed tomography (CT). MRIs anoshandisa mamwe mazamu anobatsira kusimudzira magnetic zvinhu zvechikamu chemuviri.
Radiographic Agents
Mune zvidzidzo zve-x-ray uye CT, radiocontrast vashandi zvinhu zvinotora x-ray photons uye hazvibvumi kuti zvionekwe ne-x ray ray kana CT scanner.
Muenzaniso unowanzoshandiswa ndiyo element barium, iyo inowanikwa mu-composum barium sulfate. Kusiyanisa dhayi kunogona kuvharwa mumidziyo yako yeropa (kuratidza midziyo), inogona kunyorerwa mumuromo (kuratidzira kumvura yakakwirira), kana kuiswa mu rectum (kuratidza mumvura yakadzika). Mune dzimwe CT inotarisa, zvose zvitatu zvakasiyana-siyana (zvinonzi "kusiyana katatu") zvinoshandiswa.
Muchirapa, kushandiswa kunonyanya kufanana kwemajasikisi emasikirini ndekumanikidza mujeni mujoka, kana nzvimbo mukati memuviri. Kazhinji nzvimbo yacho inoratidzirwa nejerija rekuona kuti nheyo iri munzvimbo yakakodzera musati mishonga inorohwa.
MRI Kusiyanisa Vashandi
Kusiyana kweMRI kunoshanda zvakasiyana asi kunowedzerawo kusiyanisa kwekusiyana kwemashupu. MRI inosiyana inoshandura magnetic zvinhu zvemuviri. Ichishandurwa nzvimbo ichasiyanisa mhando dzemhando pamifananidzo yeMRI.
Inonyanya kushandiswa inonzi MRI contrast agent ndiyo yegadolinium element.
Sezvakaita mazita e-radiographic, gadolinium inogona kujowa mumidziyo yeropa kana kuiswa mujoka. Gadolinium-enhanced MRI inoongorora inogona kubatsira zvikuru mukuratidza zviwanikwa zvisinganzwisisiki zvakadai sokurara kwemisodzi mumapfudzi uye mukoko weputikiti . Pasina muenzanisi akawedzera, izvi zvinowanikwa zvisinganzwisisiki zvisingaratidziki.