Thaum lub plawv PET scans, radiotracers yog siv txhawm rau kuaj cov qog lossis thaj tsam ntawm qhov mob. Radiotracers yog cov molecules uas txuas nrog me me ntawm cov khoom siv hluav taws xob uas tuaj yeem kuaj pom ntawm PET scan rau cardiology.
Dab tsi yog siv xov tooj cua?
Ib tug xov tooj cua tracer, radiotracer, los yog radioactive daim ntawv lo, yog ib tug tshuaj compound nyob rau hauv uas ib los yog ntau tshaj atoms tau hloov los ntawm ib tug radionuclide yog li los ntawm kev tsim txiaj ntawm nws cov xov tooj cua decay nws yuav siv tau los tshawb txog qhov mechanism ntawm tshuaj tiv thaiv los ntawm tracing txoj kev uas lub radioisotope ua raws los ntawm reactants rau cov khoom…
Dab tsi yog qhov siv xov tooj cua tshaj plaws?
Cov xov tooj cua tshaj plaws yog F-18 fluorodeoxyglucose (FDG), molecule zoo ib yam li qabzib. Cov qog nqaij hlav cancer yog cov metabolically nquag nquag thiab tuaj yeem nqus cov piam thaj ntawm tus nqi siab dua. Tus nqi siab dua no tuaj yeem pom ntawm PET scans.
piv txwv ntawm lub xov tooj cua thiab piav qhia nws siv yog dab tsi?
Radioactive tracers yog dav siv los kuaj xyuas cov reactors, piv txwv li los ntawm kev ntsuas cov kua dej, roj thiab cov khib nyiab. … Ib tug xov tooj cua tracer yog ib tug tshuaj compound nyob rau hauv uas ib los yog ntau tshaj atoms tau hloov los ntawm ib tug radioisotope.
piv txwv ntawm lub xov tooj cua yog dab tsi?
Piv txwv ntawm cov kab hluav taws xob uas nquag siv suav nrog tritium, carbon-11, carbon-14, oxygen-15, fluorine-18, phosphorus-32, sulfur-35, technetium- 99, iodine-123, thiabgallium-67.
