Mawallafi: William Ramirez
Ranar Halitta: 24 Satumba 2021
Sabuntawa: 21 Yuni 2024
Anonim
How Does a CT Scan Work?
Video: How Does a CT Scan Work?

Tomaukar hoton ƙafa (CT) na ƙafa yana yin hotunan ɓangaren kafa. Yana amfani da hasken rana don ƙirƙirar hotunan.

Za ku kwanta a kan kunkuntun teburin da ke zamewa zuwa tsakiyar na'urar daukar hotan takardu na CT.

Da zarar kun kasance cikin na'urar daukar hotan takardu, katakon x-ray na injin yana juya ku. (Scan "karkace" na zamani zasu iya yin gwajin ba tare da tsayawa ba.)

Kwamfuta na kirkirar hotunan daban na sassan jikin, wanda ake kira yanka. Waɗannan hotunan ana iya adana su, duba su a kan allo, ko kuma a buga su a fim. Za'a iya ƙirƙirar ƙirar ƙafa uku (3D) ta ƙafa ta hanyar ƙara yanka tare.

Kuna buƙatar kwance har yanzu yayin gwajin. Motsi na iya haifar da hotuna marasa haske. Kila iya buƙatar ɗaukar numfashi don gajeren lokaci.

Scan ɗin zai ɗauki minti 10 zuwa 15 kawai.

Wasu jarrabawa suna amfani da rini na musamman, wanda ake kira bambanci, wanda ake sakawa a jikinka kafin fara gwajin. Bambanci yana taimaka wa wasu yankuna da su nuna mafi kyau a kan x-haskoki.

  • Za a iya bayar da bambance-bambancen ta jijiya (IV) a hannunka ko kuma a gaban goshinka.Idan ana amfani da bambanci, ana iya tambayarka kada ku ci ko sha wani abu na awanni 4 zuwa 6 kafin gwajin.
  • Bari mai kula da lafiyarku ya sani idan kun taɓa samun amsa ga bambanci. Wataƙila kuna buƙatar shan magunguna kafin gwajin don guje wa wannan matsalar.
  • Kafin samun bambanci, gaya wa mai ba ka idan ka sha maganin ciwon sukari na metformin (Glucophage). Wataƙila kuna buƙatar ɗaukar ƙarin matakai kafin gwajin idan kun ɗauki wannan magani.

Nauyin nauyi da yawa na iya haifar da lalacewar sassan aikin na'urar daukar hotan takardu. Bincika idan na'urar CT tana da nauyin nauyi idan kun auna sama da fam 300 (kilogram 135).


Za ku sa rigar asibiti yayin nazarin. Kuna buƙatar cire duk kayan ado.

Wasu mutane na iya zama da kwanciyar hankali kwance a kan tebur mai wuya.

Bambancin da aka bayar ta hanyar IV na iya haifar da ɗan jin zafi, ɗanɗano na ƙarfe a cikin baki, da dumi danshi na jiki. Wadannan ji na yau da kullun sun wuce cikin 'yan sakanni.

CT scan yana yin cikakkun hotuna na jiki da sauri. Jarabawar na iya taimakawa neman:

  • Rashin ƙwayar cuta ko kamuwa da cuta
  • Wani taro wanda ake ji yayin gwajin jiki
  • Dalilin ciwo ko wasu matsaloli a cikin ƙafa, idon, ko haɗin gwiwa (yawanci idan ba za a iya yin MRI ba)
  • Kashin da ya karye
  • Misalin karaya
  • Massa da marurai, gami da ciwon daji
  • Matsalar warkarwa ko tabon nama bayan tiyata

Hakanan za'a iya amfani da hoton CT don jagorantar likitan likita zuwa yankin da ya dace yayin nazarin halittu.

Ana daukar sakamako kamar na al'ada idan ana duba kafa yana da kyau.

Sakamakon sakamako mara kyau na iya zama saboda:


  • Canje-canje masu lalacewa saboda shekaru
  • Cessunƙara ko kamuwa da cuta
  • Rigar jini a kafa (zurfin sanyin thrombosis)
  • Karye ko karaya
  • Ciwon daji
  • Lalacewa ga gwiwa, ƙafa, ko haɗin gwiwa
  • Ciwan ƙashi mara ciwo
  • Matsalar warkarwa ko ci gaban ƙwayar tabo bayan tiyata

Hadarin don binciken CT sun hada da:

  • Kasancewa ga radiation
  • Maganin rashin lafia ga bambancin rini
  • Ciwon haihuwa idan aka yi yayin ciki

Binciken CT yana nuna maka zuwa ƙarin jujjuyawar sama da rayukan rana. Samun hotuna masu yawa ko CT scans akan lokaci na iya ɗaga haɗarin kamuwa da cutar kansa, amma haɗarin da ke cikin kowane hoto ƙananan ne. Yi magana da mai ba ka sabis game da wannan haɗarin game da fa'idodin gwajin.

Wasu mutane suna da rashin lafiyan bambanci dye. Bari mai ba da sabis ya san idan kun taɓa samun irin wannan aikin.

  • Mafi yawan nau'ikan bambancin da aka bayar a jijiya yana dauke da iodine. Mutumin da ke fama da cutar iodine na iya samun tashin zuciya ko amai, atishawa, ƙaiƙayi, ko amya daga wannan nau'in bambancin.
  • Idan dole ne ku sami irin wannan bambancin, zaku iya samun antihistamines (kamar Benadryl) ko steroids kafin gwajin.
  • Kodan na taimakawa cire iodine daga jiki. Mutanen da ke da cutar koda ko ciwon sukari na iya buƙatar samun ƙarin ruwa bayan gwajin don taimakawa fitar da iodine daga jiki.

Fenti na iya haifar da martani na barazanar rai wanda ake kira anafilaxis. Wannan ba safai bane. Faɗa wa mai aikin sikanin nan da nan idan kana samun matsala na numfashi yayin gwajin. Scanners sun zo tare da intercom da masu magana, don haka afaretan na iya jin ku a kowane lokaci.


CAT scan - kafa; Compididdigar ƙirar ƙirar axial - ƙafa; Utedididdigar ƙirar ƙira - ƙafa; CT scan - kafa

Kulaylat MN, Dayton MT. Rikicin tiyata. A cikin: Townsend CM Jr, Beauchamp RD, Evers BM, Mattox KL, eds. Littafin Sabiston na tiyata. 20th ed. Philadelphia, PA: Elsevier; 2017: babi na 12.

Shaw AS, Prokop M. utedididdigar hoto. A cikin: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. Tsarin Rigakafin Hikimar Grainger & Allison: Littafin rubutu na likitancin hoto. Na 6 ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2015: babi na 4.

Thomsen HS, Reimer P. Intravascular bambanci kafofin watsa labarai don rediyo, CT, MRI da duban dan tayi. A cikin: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. Tsarin Rigakafin Hikimar Grainger & Allison: Littafin rubutu na likitancin hoto. Na 6 ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2015: babi na 2.

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