ASida laga soo xigtay Dr. Atul Gawandea, dhakhtarka qalliinka ee Brigham iyo Isbitaalka Haweenka ee Machadka Kansarka Dana-Farber, "Waxaan ognahay in samaynta 62 milyan oo baaritaan sanadkiiba dad gaaraya 300 milyan ma aha oo kaliya mid aan loo baahnayn oo khasaare ah, laakiin waa khatar. soo saaraya tobanaan kun oo kansar" (NPR's "Morning Edition," Sebtembar 3, 2009).
Baadhitaanka CT-ga caafimaadka iyo PET waxay soo bandhigaan ugu yaraan afar milyan oo Waqooyiga Ameerika ah qiyaaso badan oo shucaac ah sannad kasta, daraasad cusub ayaa muujisay. Qiyaastii 400,000 oo iyaga ka mid ah waxay helayaan qiyaaso aad u sarreeya, oo ka sarreeya qiyaasta ugu badan ee sannadlaha ah ee loo oggol yahay tamarta nukliyeerka ama shaqaalaha goobta hubka nukliyeerka ama qof kasta oo ka shaqeeya walxaha shucaaca, sida ku cad maqaal 27 Agoosto New England Journal of Medicine, "La-soo-gaadhista Shucaaca Ionizing-Dose-hoose ee ka yimid Nidaamyada Sawirka Caafimaadka."
PET waxay u taagan tahay "sawir-baxa sii daaya positron" iyo CT-gu waxay tixraacaysaa "sawir sawireed." positron waa qayb subatomic ah sida elektarooniga, marka laga reebo inay leedahay lacag togan. Baaritaannada PET waxay ku bilowdaan in ay ku duraan bukaan-socodka raadiyaha raadiyaha raadiyaha-ka-soo-tootada ka dibna ku urura unugyada la baarayo. Waxyaabaha shucaaca ah ee sida caadiga ah loo isticmaalo baarista waa:
- Kaarboon-11
- Nitrogen-13
- Ogsajiin-15
- Fluorine-18
Daraasadda cusubi ma qiyaasin inta kansar ee shucaaca CT iyo baaritaannada PET ay keeni karaan waqti ka dib. Dr. Rita Redberg, oo ah dhakhtar wadnaha ah iyo cilmi-baare ka tirsan Jaamacadda California ee San Francisco, ayaa u sheegtay New York Times Agoosto 27 in "tobanaan kun" oo kansar dheeraad ah ay u badan tahay inay ka dhalan doonaan daawayntaas. Intaa waxaa dheer, daraasad marar badan la soo xigtay 2001 by DJ Brenner oo lagu daabacay Joornaalka Mareykanka ee Roentgenology ("Qiyaasta Khatarta Cudurka Kansarka Dhimashada ee Shucaaca Ka Dhashay Kaanka Carruurta CT") ayaa soo gabagabeeyey, "Mareykanka, qiyaastii 600,000 oo baaritaanno caloosha iyo madaxa CT ah oo lagu sameeyo carruurta da'doodu ka yar tahay 15 sano, qiyaas adag ayaa ah in 500 kuwan ka mid ah. Shakhsiyaadka ayaa laga yaabaa inay ugu dambeyntii u dhintaan kansarka oo loo aaneynayo shucaaca CT."
"Waa hubaal in ay jiraan kororka heerarka kansarka ee heerarka hoose ee shucaaca iyo markaad kordhiso heerarka shucaaca, waxaad kordhineysaa kansarka," Redberg ayaa tiri. Sannadkii 2007, Waaxda Caafimaadka iyo Adeegyada Aadanaha ayaa sheegtay in tirada CT scans ee lagu amray bukaannada Medicare ay ku dhowdahay afar jibaar intii u dhaxaysay 1995 iyo 2005. Tirada baadhitaannada PET ayaa aad u kordhay. "Xeerarka federaalku waxay u oggolaanayaan dhakhaatiirta inay ka faa'iidaystaan โโisticmaalka mashiinnada ay leeyihiin ama kiraystaan," the Times la sheegay. Dr. Reza Fazel, oo ah madaxa qoraaga cusub ee daraasadda, ayaa sheegay in isticmaalka scanku uu u muuqdo inuu kordhay intii u dhaxaysay 2005 iyo 2007 sidoo kale.
Qiyaasaha shucaaca ee bukaanka waxaa lagu cabbiraa millisieverts. Celcelis ahaan dadka degan Maraykanka waxa ay sannadkii ka helaan ilaa saddex millisieverts wasakhowga shucaaca iyo shucaaca laga helo dabeecadda. Daraasadda cusub waxay ogaatay in qiyaastii 4 milyan oo bukaan oo Mareykan ah ay helaan qiyaaso isugeyn oo ka badan 20 millisieverts, ama 7 jeer celceliska sanadlaha ee ilo kale. Kooxdaas, 10 boqolkiiba, ama 40,000, waxay heleen ugu yaraan 50 milliseverts, "in ka badan ugu badnaan sannadlaha ah ee maamulayaasha nukliyeerka ay oggolaadaan," Times la sheegay.
Gawande, intii uu ka soo muuqday barnaamijka "Morning Edition," ayaa u sheegay wariye Ari Shapiro in, "Daryeelka caqli-galku wuxuu noqon lahaa in la aqoonsado [in] aanu samayno baaritaanno madaxa dadka qaba madax-xanuun caadi ah, in aan horay u haysanay caddayn wanaagsan iyo tilmaamo muujinaya in aysan ahayn. caqli badan in la sameeyo iskaanka."
In tifaftirka la socda Agoosto Wargeyska New England maqaal, Dr. Michael Lauer ayaa qoray, "Waa inaan ka fikirnaa oo aan si cad uga hadalnaa walxaha khatarta ah ee u soo bandhigista bukaannadayada shucaaca."
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John LaForge waa agaasime ka tirsan Nukewatch wuxuuna tafatiraa saddexdii biloodba mar. Wuxuu ku nool yahay Beerta Beesha Anathoth ee ku taal Luck, Wisconsin.