Yaushe kuma me ya sa ake amfani da PET Scans Used for Cancer Cutar?
Ma'anar: PET Scan (Tsarin Bayani na Kira)
Binciken PET shine jarrabawar rediyo don amfani da shi don kimantawa da kuma aiwatar da ciwon huhu na huhu da kuma ana amfani dashi tare da CT scan.
Ta yaya PET ta bambanta daga wasu gwaji?
Ganin cewa CT na dubawa da MRI suna kallon jikin jiki (kasusuwa, gabobin jiki da sauran kayan aiki,) PET yana duba yadda jiki yake aiki (yadda wadannan kwayoyin da takalma suna aiki.) Yayinda ake daukar CT da MRI tsarin fasaha na tsari, ana ganin PET dabarar ƙirar kwayoyin halitta .
Dalili na PET Scan
Akwai dalilai da yawa da ya sa likita za su iya ba da shawara ga PET dubawa. Wasu daga cikinsu sun haɗa da:
- Don maganin ciwon daji.
- Don ganin ko nodule wanda ba a taɓa nuna shi ba zai zama rikici ko a maimakon haka ya zama kamar ƙwayar cuta ko tsari marar sauya. A wasu lokuta, fasahar PET zai iya ƙayyade bambancin tsakanin mummunan ciwon daji marasa lafiya ba tare da buƙatar kwayar halitta ba.
- Don magance ciwon daji ta hanyar ƙayyade yadda yaduwar ciwon daji ya yada. Binciken PET yana da mahimmanci fiye da CT a gano magungunan ƙananan ƙwayoyin cuta a cikin marasa ciwon huhu na kwayar cutar ƙwayar cuta kuma yana amfani da gwaji mai mahimmanci tsakanin bambanci tsakanin ƙwayar ciwon huhu da ƙananan ƙwayoyin ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta . Hannun PET yana da mahimmanci a yin nazarin kwayoyin lymph wadanda suke da kyau ga ciwon daji. Alal misali, wani PET duba zai iya gano asalin lymph nodes a cikin mediastinum ba tare da buƙatar yin aikin mediastinoscopy ba (hanyar da ake amfani dasu don kimanta wannan yankin.)
- Don shirya mafi kyawun maganin zafin jiki don cutar kanjamau.
- Don ganin yadda magani yake aiki.
- Don saka idanu don sake dawo da ciwon huhu na huhu . Alal misali, yana iya wahala a kan CT don ƙayyade idan wani yanki a cikin kututture ya zama nau'in ƙwayar jiki saboda sakamakon radiation ko a maimakon haka, sake dawo da ƙwayar cuta.
- Don taimakawa wajen gane ƙayyadewa. Tumors da rashin kulawa da glucose na iya zama ƙasa da matsananciyar zalunci kuma suna da kyakkyawar ganewa fiye da waɗanda suke da ƙwarewa.
Tare da ciwon daji na huhu, an yi nazarin PET ne a cikin marasa lafiya da ciwon daji na farko da za a iya yin aiki tare da niyyar warkar da cutar. Ga mutanen da ke da ciwon huhu da suka yada fiye da wani mataki, tiyata ba shine mafi kyawun zaɓi ba. A cikin binciken daya da aka gano cewa a cikin mutane biyar cikin 5 wadanda ke da ciwon daji wanda ya zama marasa lafiya, wani PET binciken ya iya bincikar yaduwar cutar ciwon daji wanda ba a san shi ba saboda aikin da ba dole ba ne ya faru.
Pis Scan Process
Tare da nazarin PET, an yi amfani da ƙwayar rediyo mai zurfi (fluorodeoxyglucose ko FDG) zuwa cikin jini. Tsarin kwayoyin suna amfani da sukari. Kwayoyi masu sauri kamar kwayoyin cutar ciwon sukari suna ɗauke da sukari kuma ana iya ganin su a kan siffofi 3.
Kafin binciken PET, ana koya wa mutane sauƙin cin abinci ko shan (musamman cin abinci masu ci) na tsawon lokaci kuma don rage motsa jiki na tsawon sa'o'i 24. Za a yi amfani da sukari na rediyo (fluorodeoxyglucose ko FDG), kuma mai haƙuri yana jiran sa'a don jiki ya sha sukari. Sa'an nan kuma an yi nazari akan kimanin 30 zuwa 60 minutes.
Zai iya zama firgita don yin tunani game da abu mai rediyo da ake kwance a cikin jikinka, amma a gaskiya, ƙananan adadin radiation yana faruwa.
Wannan radiation yana lalacewa bayan da allurar rigakafi, ko da yake wasu masu ilimin likita sun bada shawarar cewa mutane su kasance daga mata masu ciki da yara a ranar da ake gwajin.
Ƙayyadaddun Batu na PET - Ƙari na Gaskiya da Abubuwan Dama
Kamar yadda mafi yawan gwaje-gwaje da aka yi don ciwon daji, za'a iya kasancewa da maƙaryata da kuskure a kan PET dubawa. Wani mummunar mummunan yakan faru idan akwai mummunar da ke ciki, amma ba a gano shi ba a binciken PET. Wani abu mai ban mamaki ya faru ne yayin da PET yayi nazari cewa wani abu shine ciwon daji, amma a gaskiya, babu wani abu mai mahimmanci, irin su tsoka. Halin na yau da kullum wanda ke haifar da halayen ƙarya a cikin PET da ke kan cutar ciwon huhu ya hada da ciwon huhu wanda ba zai yiwu ba (cututtukan da ke faruwa a cikin farjin huhu a inda tarin yake hana iska) da silicosis.
Ana ganin lokuttan ƙarya a yankunan da aka warkar da su, irin su wuraren da aka yi aikin tiyata.
Bugu da ƙari, nazarin PET na cutar kanjamau yana da ƙwarewa mai zurfi da ƙananan takamaimai. Kyakkyawan ƙwarewa yana nufin gwajin yana da kyau a yayin ɗaukar abubuwan da ba su da mahimmanci, kuma yana iya bambanta wurare masu kyau da kuma m kamar ƙaramin 1 cm. Ƙananan mahimmanci yana nufin cewa ganowa baya nufin ciwon daji kuma waɗannan matakai irin su kamuwa da cuta ko ƙumburi na iya haifar da damuwa marar kyau.
Misalai: Duk da cewa Jill ta CT scan ya kasa gano cutar kanjamau a cikin kyallen takarda ba tare da jikinta ba, PET ta nuna cewa cutar kanjamau ta yadu da kuma cewa tiyata ba zai zama mafi kyaun maganin ta ba.
> Sources:
> Giaccone, G. 18Fluorodeoxyglucose Positron Kashi Tsarin Halitta, Dattijan Harshen Cutar Kwayar Wuta. Journal of the National Cancer Institute . 2007. 99 (23): 1741-1743.
> Murgu, S. Yin bincikar maganin cutar kanjamau da ke dauke da kwayar cutar. Chest . 2015. 147 (5): 1401-12.
> Schmidt-Hansen, M. et al. PET-CT don nazarin ƙwayar cutar kututtukan kwayar cutar a cikin marasa lafiya da ake zaton mai ciwon daji na ƙwayar cutar kwayar halitta. Cochrane Database of Manyan Labarai . 2014 Nuwamba 13. 11: CD009519
> Ung, Y., Maziak, D., Vanderveen, J. et al. 18Fluorodeoxyglucose Positron Tsarin Tsarin Halittar Halitta a Cigaba da Tsarin Ciwon Cutar Tsutsa: Nazari na Tsaro. Journal of the National Cancer Institute . 2007. 99 (23): 1753-1767.
> Makarantar Magunguna ta {asar Amirka. MedlinePlus. Lung PET Scan. Updated 01/27/15. https://medlineplus.gov/ency/article/007342.htm