Enwere ike ịnweta ọnyụnyụ na-enye gị kansa? Azịza dị mkpirikpi bụ ee. Dị ka Ngalaba Ahụike Health na Ngalaba Na-ahụ Maka Ụmụaka na United States si kwuo, ọrịa cancer na-akpata site na ihe dị ka 1,000 millisieverts (mSv). Ihe ngosi na ihe na-erughị 200 mSv nwere ike ime ka ọrịa kansa ọbara na cancer nke thyroid, ara, na ume. A pụkwara ịrịa ọrịa cancer na-akpata site na ikpughe ihe na-erughị 100 mSv nke radieshon.
Basics
Ya mere, ihe heck bụ "millisievert" na olee otu ị ga-esi ghara ịbịa 100, 200, ma ọ bụ 1,000 n'ime ha? A millisievert bụ akụkụ sayensị nke mmụba maka mgbatị radiation. Ebe ọ bụ na akụkụ dị iche iche nke ahụ nwere ọkwa dịgasị iche dị iche iche nke radiation radiation, a na-egosikarị nkwupụta dị ka "dose dị irè." Dịka ọmụmaatụ, ka anyị kwuo Organ X na Organ Y nke ọ bụla kpughere 10 mSv nke radieshon. Otú ọ dị, Organ Y dị okpukpu abụọ ka ọ dị mfe. Mkpụrụ ahụ ga-abụ 10 mSv maka akpa ọ bụla, mana uru dị irè ga-abụ 10 mSv maka Organ X na 20 mSv maka Organ Y.
The Bad News
Akụkọ ọjọọ ahụ bụ na ihe dị ka pasent 80 nke mgbasa ozi anyị na-ekpo ọkụ na-esite n'aka ihe ndị sitere n'okike, ndị a na-apụghị izere ezere. Ndị America na-enweta ọgwụ dị irè nke ihe dịka mita atọ nke radies, nkume, oghere elu, ala, ngwá electronic, na ụgbọelu. (Tupu ị ṅụọ iyi ụgbọelu, buru n'uche na ị ga-enwe ihe dịka 1 mSv nke ikpughe maka awa 200 ọ bụla na-agba ọsọ.)
Ozi ọma
Ozi ọma ahụ bụ na ọ na - ewepụta ọtụtụ radiation iji nweta ọkwa ndị na - akpata kansa . Ozugbo ị mara nọmba ahụ, ịnwere ike izere ịpụ na-enweghị isi ka ị nweta ihe ndị ọzọ nke radieshon. Dịka ọmụmaatụ, ọ bụrụ na ị na-echegbu onwe gị gbasara ikpughe redio, ị nwere ike ịhọrọ ịchọta ị ga-enwe colonoscopy (enweghị mkpuchi radiation) karịa nke casino enema (ihe dịka 7 mSv nke ikpughe radiation).
Mpempe akwụkwọ dị irè maka isi mmalite nke radieshon gụnyere ihe ndị a:
- Ụgbọ njem ụgbọelu (0.005 mSv / awa)
- Barium enema (7 mSv)
- Ahịa X-ray (0.10 mSv)
- CT scan nke afọ (10 mSv)
- CT nyocha nke obi (8 mSv)
- CT nyocha nke isi (2 mSv)
- Dental X-ray (0.09 mSv)
- Mammogram (0.7 mSv)
- X-ray nke okpokoro isi (0.07 mSv)
- Dum niile CT (10 mSv)
Isi mmalite:
Nordenberg, Tamar. Foto nke Ahụike: Ọ bụ ihe dị n'ime ahụ ejiri ụzarị ọkụ, usoro ihe ọmụma ndị ọzọ. Nchịkwa nri na ọgwụ ọjọọ na US. 1999. 27 Aug. 2006 [http://www.fda.gov/fdac/features/1999/199_xray.html].
Ihe ngosi nke radiation na ihe ngosi X-ray. Ozi Radiology. 27 Aug. 2006 [http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray].
Ọrịa na-egbuke egbuke. Merck ntuziaka nke Ozi Ahụike. 1 Feb. 2003. 27 Aug. 2006 [http://www.merck.com/mmhe/sec24/ch292/ch292a.html].
Akuko na Carcinogens, mbipụta nke 11. Ọrụ Ahụike Ọha. 27 Aug. 2006 [http://ntp-server.niehs.nih.gov/ntp/roc/toc11.html].
Kedu ihe ize ndụ nke radiation si CT? Ụlọ Ọrụ maka Ngwaọrụ na Ahụike Radio. 4 Mee 2005. 27 Aug. 2006 [http://www.fda.gov/cdrh/ct/risks.html].