Na mahlaseli a kotsi a ka u fa kankere? Karabo e khutšoanyane ke e. Ho ea ka Lefapha la Bophelo le Litšebeletso tsa Botho la United States, kankere ea colone e bakiloe ke tekanyo ea millisieverts tse ka bang 1 000 (mSv). Ho pepeseha ho feta mSv e ka tlaase ho 200 ho ka baka kankere ea mali le kankere ea thyroid, matsoele le maphephe. 'Me kankere ea sebete e ka bakoa ke ho pepesehela mahlaseli a ka tlaase ho 100 mSv.
Basics
Kahoo, seo heck e leng "millisievert" 'me u etsa joang hore u se ke ua theola 100, 200 kapa tse 1 000? Millisievert ke tekanyo ea saense ea tekanyo bakeng sa tekanyo ea mahlaseli. Kaha likarolo tse sa tšoaneng tsa 'mele li na le likarolo tse fapaneng tsa kutloisiso ho mahlaseli a kotsi, hangata tlhahiso e hlahisoang ke "tekanyo e sebetsang." Ho etsa mohlala, a re re Organe X le Organe Y li pepesitsoe ka li-radiate tse 10 tsa mahlaseli. Leha ho le joalo, mokhatlo oa Y o na le bobeli bo bobebe. Palo ea sebele e ne e ka ba mSv e 10 bakeng sa setho ka seng, empa tekanyo e sebetsang e ne e tla ba 10 mSv bakeng sa Sehlopha X le 20 mSv bakeng sa Sehlopha sa Y.
Litaba Tse Mobe
Litaba tse mpe ke hore hoo e ka bang karolo ea 80 lekholong ea mahlaseli a mahlaseli a rona a tsoa maemong a tlhaho a ke keng a qojoa. Amerika e tloaelehileng e fumana tekanyo e atlehang ea mahlaseli a mararo selemo le selemo ho tloha radon, majoe, sepakapaka, mobu, elektronike le maeto a sefofane. (Pele u hlapanya lifofane, u hopole hore u fumana hoo e ka bang 1 mSv ea ho qeta lihora tse 200 tsa nako ea lifofane.)
Litaba Tse Molemo
Litaba tse monate ke hore ho nka mahlaseli a mangata haholo ho fihla maemong a bakang kankere . Hang ha u tseba linomoro, u ka qoba ho ipeha tlas'a mehloli e meng ea mahlaseli. Ka mohlala, haeba u amehile ka ho pepeseha ha mahlaseli a kotsi, u ka 'na ua khetha ho ba le colonoscopy (ho se na mahlaseli a mahlaseli) ho e-na le enema ea barium (hoo e ka bang ka 7 mSv ea mahlaseli a mahlaseli).
Meriana e atlehang bakeng sa mehloli e tloaelehileng ea mahlaseli a kotsi e kenyeletsa tse latelang:
- Leeto la sefofane (0.005 mSv / hora)
- Barium enema (7 mSv)
- X-ray ea sefuba (0.10 mSv)
- Tlhaloso ea mpa ea CT (10 mSv)
- Tlhahlobo ea CT ea sefuba (8 mSv)
- Tlhaloso ea CT ea hlooho (2 mSv)
- X-ray ea meno (0.09 mSv)
- Mammogram (0.7 mSv)
- X-ray ea lehata (0.07 mSv)
- Sesebelisoa sa 'mele oa' mele (10 mSv)
Lisebelisoa:
Nordenberg, Tamar. Setšoantšo sa Bophelo bo botle: Ke se ka hare ho sona se amanang le X-rays, tse ling tsa litsela tsa ho nahana. US Administration of Drug and Drug Administration. Feb. 1999. 27 Aug. 2006 [http://www.fda.gov/fdac/features/1999/199_xray.html].
Mantsoe a mahlaseli a mahlaseli a X-ray. Tsebo ea Radiology. 27 Aug. 2006 [http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray].
Ho Lematsa Mahlaseli. Merck Manual ea Boitsebiso ba Bongaka. 1 Feb. 2003. 27 Aug. 2006 [http://www.merck.com/mmhe/sec24/ch292/ch292a.html].
Tlaleha ka likokoana-hloko, Khatiso ea bo11. Tšebeletso ea Bophelo ba Sechaba. 27 Aug. 2006 [http://ntp-server.niehs.nih.gov/ntp/roc/toc11.html].
Li kotsi tsa mahlaseli a tsoang ho CT? Setsi sa Lisebelisoa le Bophelo bo Botle ba Meriana. 4 Mantaha 2005. 27 Aug. 2006 [http://www.fda.gov/cdrh/ct/risks.html].