Kujambula kwa CAT Kumapanga Chithunzi Chachigawo Cha Thupi
Kujambula kwa CAT, komwe kumatchedwanso axial tomography, CT scan, kapena computed tomography, ndi chithunzi chosajambula chomwe chimagwiritsidwa ntchito kuthandiza kuthandizira matenda. Pogwiritsira ntchito zipangizo zamagetsi ndi makompyuta apadera, kujambulidwa kwa CAT kungabweretse zithunzi zambiri zomwe zimagwirizana ndi malo omwe ali ndi chidwi m'thupi.
Kodi CAT yasintha motani?
Ngati muli ndi kanema ya CAT, mudzauzidwa kuti mugone pa tebulo yogwiritsa ntchito magetsi yomwe idzakupangitsani kuti muyambe kujambula zithunzi za CAT.
Pa nthawi zina za CAT, mudzapatsidwa utoto wofiira (kusiyana) kuti muthe kuzindikira mitsempha ya magazi ndi malo otupa. Pali chitsimikizo cha x-ray ndi detector mkati mwa nyumba ya CAT scan imaging system. Chitsime cha x-ray ndi zowunikira zili pamtunda wina ndi mnzake mu mphete, yotchedwa gantry, yomwe ikuzungulira kuzungulira iwe.
Chitsime cha x-ray chimapanga mtanda wa x-ray, mu mawonekedwe a fan kapena triangle, yomwe imadutsa mu gawo la thupi likuyesedwa. Chojambulira, choyang'anizana ndi chitsimikizo cha x-ray, amalemba ma x-ray akudutsa mu thupi ngati zithunzi zojambulajambula. Zojambula zambiri zosiyana zimasonkhanitsidwa kuchokera kumapangidwe osiyanasiyana pazomwe zimayendera x-ray chitsimikizo ndi detector. Ndiye, ndi ntchito ya kompyutayi kukonzanso mafano pamtundu uliwonse wa zithunzi zojambulidwa za gawo lomwelo la thupi, zomwe zimapangitsa kuti zitha kugwiritsidwa ntchito.
Kodi Kusuta kwa CAT Kumalembedwa Liti?
Kufufuza kwa CAT kumatha kupereka ndondomeko yambiri ya mitundu yonse ya minofu. Kawirikawiri amalamulidwa pamene nkhani ikufunika kuposa momwe x-ray yowonjezera ingaperekere. Kujambula kwa CAT kumagwiritsidwa ntchito kuti apeze matenda osiyanasiyana, kuphatikizapo khansara ndi matenda oopsa. Zimathandiza kuti matenda a nyamakazi ndi amthemphake, makamaka, ndi mavuto a msana, manja, ndi mapazi, pomwe zithunzi za mafupa ang'onoang'ono ndi ziwalo zozungulira (kuphatikizapo minofu ndi mitsempha ya m'magazi) ndizofunikira kuti mudziwe.
Mavuto ndi Mapindu Ogwirizana ndi CAT Scan
Kawirikawiri, phindu la kuyeza kwa CAT ndilokuti ndizopweteka, zomwe sizowonongeka zomwe zimafotokoza zambiri. Mosiyana ndi x-ray yeniyeni, kujambulidwa kwa CAT kumapereka zithunzi za minofu yofewa komanso fupa. Mosiyana ndi MRI, kujambulidwa kwa CAT sikumvetsetsa kayendetsedwe kako ndipo kungagwiritsidwe ntchito kwa odwala omwe apanga zipangizo zachipatala. Palibe ma radiation otsalira m'thupi lanu mutatha kuyeza kwa CAT. Kuopsa kwakukulu koyang'aniridwa ndi CAT kuyang'ana kukuwonetseratu ma radiation. Ngati kusinthanso kwanu kumaphatikizapo kusiyana kosiyana, ndiye kuti palinso kachiopsezo kakang'ono kovuta kugonana komanso / kapena matenda a impso. Nthawi zambiri, phindu limaposa zoopsa.
Zotsatira:
Kuchokera kwa Mafilimu. Computed Tomography (CT).
CT - Thupi. KawirikawiriInfo.org. March 15, 2010.