Saameynta shucaaca ma ku siin kartaa kansar? Jawaabta gaaban waa haa. Sida laga soo xigtay Waaxda Caafimaadka iyo Adeegyada Aadanaha ee Mareykanka, kansarka mindhicirada waxaa sababay qiyaastii qiyaastii 1,000 millisieverts (mSv). Soo-gaadhista wax ka yar 200 mSv wuxuu keeni karaa dheecaan iyo kansar ku dhaca qanjirka, naaska, iyo sambabada. Kansarka beerka waxaa sababi kara in ka badan 100 mSv oo shucaac ah.
Aasaaska
Marka, waa maxay waxa lakabku yahay "millisievert" oo sidee uga ilaalin kartaa 100, 200, ama 1,000 ka mid ah? Millisievert waa cutubka sayniska ee cabbirka qiyaasta shucaaca. Maadaama qaybo kala duwan oo jirka ka mid ah ay leeyihiin heerar kala duwan oo dareen-celin ah shucaaca, shucuurta waxaa guud ahaan loo muujiyaa "qiyaasta wax ku oolka ah." Tusaale ahaan, aynu dhahno Xubinta X iyo Organ Y ayaa mid kasta u muuqda 10 mSv oo shucaac ah. Hase yeeshee, Organ Y wuxuu labanlaab u yahay mid xasaasi ah. Qiyaasta dhabta ah waxay noqon doontaa 10 mSv ee xubin kasta, laakiin qiyaasta waxtar leh waxay noqon doontaa 10 mSv for Organ X iyo 20 mSv for Organ y.
Badbaadinta Badbaadada
Warka xun ayaa ah in qiyaastii boqolkiiba 80% shucuurta noocan ahi ay ka timaaddo ilaha dabiiciga ah, ee aan la loodin karin. Celcelis ahaan Maraykanka wuxuu helayaa qiyaas wanaagsan oo qiyaastii 3 mSv oo shucaac ah sanad walba laga bilaabo radon, dhagaxyada, bannaanka bannaanka, ciidda, elektarooniga, iyo safarka diyaaradda. (Ka hor intaadan dhicin diyaaradaha, maskaxda ku hay in aad hesho 1 mSv oo ah soo-gaadhis 200-kii saacadoodba mar.
Warka wanaagsan
Warka fiicani waa in ay qaadato shucaac fara badan si loo helo heerarka keena kansarka . Marka aad taqaanno tirooyinka, waxaad iska ilaalin kartaa si aanad ugu baahnayn inaad adigu u dirto ilooyin dheeri ah oo shucaac ah. Tusaale ahaan, haddii aad ka walaacsan tahay shucaac, waxaa laga yaabaa inaad rabto inaad doorato inaad yeelato baarista walamadka (ma lahan shucaac) halkii aad ka heli laheyd dawada barium (qiyaastii 7 mSv oo shucaac ah).
Qiyaasaha wax ku oolka ee ilaha caadiga ah ee shucaaca waxaa ka mid ah kuwan soo socda:
- Socodka safarka (0.005 mSv / saac)
- Barium enema (7 mSv)
- Raajada feeraha (0.10 mSv)
- CT scan caloosha (10 mSv)
- Baadhitaanka CT-ga ee xabadka (8 mSv)
- CT scan madaxa (2 mSv)
- Raajo ilkeed (0.09 mSv)
- Mammografi (0.7 mSv)
- Raajada Qalitaanka (0.07 mSv)
- Baadhitaan CT-ga oo dhan ah (10 mSv)
Ilaha:
Nordenberg, Tamar. Sawirka Caafimaadka: Waa Waa Maxay Gudaha Tilmaameedka Raajooyinka, Hababka Kale Sawirada. Maamulka Cuntada iyo Dawooyinka Mareykanka. Feb. 1999. 27 Aug. 2006 [http://www.fda.gov/fdac/features/1999/199_xray.html].
Shucaaca Shucaaca ee Raajooyinka Shucaaca. Macluumaadka Raajada. 27 Aug. 2006 [http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray].
Dhaawaca Shucaaca. Macluumaad Caafimaad. 1 Feb. 2003. 27 Aug. 2006 [http://www.merck.com/mmhe/sec24/ch292/ch292a.html].
Warbixin ku saabsan Carcinogens, daabacaadda 11aad. Adeega Caafimaadka Dadweynaha. 27 Aug. 2006 [http://ntp-server.niehs.nih.gov/ntp/roc/toc11.html].
Waa maxay Riskadaha Shucaacu ee CT? Xarunta Qalabka iyo Caafimaadka Raajada. 4 May 2005. 27 Aug. 2006 [http://www.fda.gov/cdrh/ct/risks.html].