Ngini futhi Kungani ama-PET Scans asetshenziselwa ukwelashwa kwe-Lung?
Incazelo: I-PET Scan (Positron Emission Tomography)
Ukuhlolwa kwe-PET kuyinto test radiological esetshenziswa ukuhlola umdlavuza wamaphaphu futhi isetshenziswa kaningi kanye CT scan.
I-Scan ye-PET ihluke kanjani kwezinye izilingo?
Njengoba ucwaningo lwe-CT kanye ne-MRI libukeka ngesimo somzimba (amathambo, izitho nezinye izicubu,) ukuhlola kwe-PET kubheka indlela umzimba osebenza ngayo (ukuthi lezi zitho nezicubu ziyasebenza kanjani) Nakuba i-CT ne-MRI ibhekwa njengamaqhinga okucabanga okuhlelekile , i-PET ibhekwa inqubo yokucabangela yamangqamuzana .
Izizathu ze-PET Scan
Kunezizathu eziningana zokuthi kungani udokotela wakho angancoma ukukhipha i-PET. Ezinye zazo zihlanganisa:
- Ukuxilonga umdlavuza.
- Ukuze ubone ukuthi i- nodule yamaphaphu engatholakali ibonakala ingumdlavuza noma kunalokho ibonakala injengezicubu ezincane noma inqubo engewona umdlavuza. Kwezinye izimo, ukuskena kwe-PET kunganquma umehluko phakathi kwesifo esibi nesifo esibi ngaphandle kwesidingo se-biopsy yamaphaphu.
- Ukwenza isifo somdlavuza ngokunquma ukuthi umdlavuza usakaze kangakanani. Iskena se-PET sinomthelela kakhulu kune-CT ekutholeni imishanguzo emdlalweni wesifo samangqamuzana angasona amancane futhi kuyisivivinyo esiwusizo sokuhlukanisa phakathi komdlavuza omncane wamangqamuzana omncane nomkhawulo. Ukuhlolwa kwe-PET nakho kuhle kakhulu ekuhloleni i-lymph nodes enomdlavuza. Isibonelo, i-PET scan ngezinye izikhathi ihlolisisa i-lymph nodes emkhatsini we-mediastinum ngaphandle kwesidingo sokwenza i- mediastinoscopy (inqubo yokuhlinzwa esetshenziselwa ukuhlola lesi sifunda.)
- Ukuhlela okukhethwa kukho okungcono kakhulu kokwelashwa komdlavuza othile wamaphaphu.
- Ukuze ubone ukuthi ukwelashwa kusebenza kanjani.
- Ukuqapha ukuphindaphinda komdlavuza wamaphaphu . Isibonelo, kungase kube nzima ku-CT ukucacisa ukuthi indawo emaphashini iyisisindo esibomvu ngenxa yokwelashwa kwemishanguzo noma kunalokho, ukuphindaphinda kwesisu.
- Ukusiza ukunquma ukubikezela. Izicubu nge-less gake i-glucose ingase ibe nobudlova obuncane futhi ibe nesimo sokubikezela kangcono kunalabo abanokuthola okuningi.
Ngomdlavuza wamaphaphu, isisindo se-PET ngokuvamile senziwa ezigulini ezinomdlavuza wamaphaphu okuqala lapho ukuhlinzwa kungenziwa ngenhloso yokwelapha lesi sifo. Kubantu abanamagciwane e-lungs abasakaza ngaphezu kwezinga elithile, ukuhlinzwa akuyona indlela engcono kakhulu. Kwesinye isifundo kutholakale ukuthi kubantu abayi-1 kwabangu-5 ababenomdlavuza okonakala sengathi bayaphulukiswa, isisindo se-PET sikwazi ukuxilonga ukusakazwa komdlavuza okwakungenakwenzeka ukuze kwenziwe ukuhlinzwa okungadingekile.
Uhlelo lwe-PET Scan
Ngesisindo se-PET, isamba esincane soshukela emsakazweni (i-fluorodeoxyglucose noma i-FDG) ifakwe egameni legazi. Amaseli akhula asebenzisa ushukela. Amangqamuzana akhula ngokushesha njengama- cancer amangqamuzana athatha ushukela futhi angabonwa ngeso lengqondo ekubukeni kwe-3-dimensional.
Ngaphambi kokuhlola kwe-PET, abantu bavame ukufundiswa ukuba bagweme ukudla noma ukuphuza (ikakhulukazi ukudla ukudla okuyishukela) isikhathi esithile nokunciphisa umzimba ngamahora angu-24. I-sugaractive radio (fluorodeoxyglucose noma i-FDG) ifakwe, futhi isiguli silinde isikhathi ukuze umzimba uthathe ushukela. Khona-ke kuthathwa iskena esithatha imizuzu engama-30 kuya kwangu-60.
Kungaba ukwesaba ukucabanga ngomuthi omsakazo ujova emzimbeni wakho, kodwa eqinisweni, kuphela ukuvezwa kwemisebe emincane kuphela.
Lokhu kuphuma kwemisebe kuyaphela ngokushesha emva kokujola, nakuba abanye oncologists batusa ukuba abantu bahlale kude nabesifazane abakhulelwe kanye nezingane ezincane ngosuku lohlolo olwenziwe ngalo.
Ukulinganiselwa kwama-PET Scans - Amaphutha Okungalungile Nezinhle
Njengazo zonke izivivinyo eziningi ezenzelwe umdlavuza, kungabikho kokubili ukungalungi kwamanga kanye nezingozi zamanga ku-PET scan. Iphutha elingamanga livela uma kunokungajwayelekile okukhona, kepha akutholakali ku-PET scan. Kukhona okungalungile lapho ukuhlolwa kwe-PET kusikisela ukuthi kukhona into engumdlavuza, kodwa empeleni, akuyona into ebalulekile, njengezicubu ezincane. Izimo ezivamile ezibangelwa amaphutha amanga ku-PET okuhlola ngomdlavuza wamaphaphu zibandakanya i-post-obstructive pneumonia (i-pneumonia eyenzeka emaphashini angaphandle lapho i-tumor ivimbela khona umoya) kanye ne-silicosis.
Amaphutha amanga avame ukubonwa ezindaweni lapho ukuphulukiswa kwenzeka khona, njengezindawo lapho ukuhlinzwa kwenziwa khona.
Ngokuvamile, ukuskena kwe-PET yomdlavuza wamaphaphu kunomzwelo ophezulu nokucaca okuphansi. Ukuzwela okukhulu kusho ukuthi ukuhlolwa kuhle kakhulu ekutholeni ukutholakala okungavamile, futhi kungahlukanisa izindawo ezinobungozi nezimbi ezincane njenge-1 cm ububanzi. Ukucacisa okuphansi kusho ukuthi ukutholakala akusho umdlavuza nokuthi izinqubo ezifana nokutheleleka noma ukuvuvukala kungabangela ukukhathazeka okungenasisekelo.
Izibonelo: Nakuba ukuhlolwa kwe-Jill sika-CT kuhlulekile ukubona umdlavuza wamaphaphu emathisini ngaphandle kwephunga lakhe, i-PET scan yakhe yabonisa ukuthi umdlavuza wakhe wamaphaphu usakazeke futhi ukuthi ukuhlinzwa ngeke kube ukwelashwa okungcono kakhulu kuye.
> Imithombo:
> Giaccone, G. 18Fluorodeoxyglucose Positron Ukuphuma Kwamathambo, Ithuluzi Elijwayelekile Lokuxilonga Emdlalweni We-Cancer. Journal of the National Cancer Institute . 2007. 99 (23): 1741-1743.
> Murgu, S. Ukuhlonza umdlavuza wamaphaphu okubandakanya i-mediastinum. Isifuba . 2015. 147 (5): 1401-12.
> Schmidt-Hansen, M. et al. I-PET-CT yokuhlola ukubandakanyeka kwe-lymph node ezigulini ezinomdlavuza ongenamancane wesifo samangqamuzana. I-Cochrane Database yezibuyekezo ezihleliwe . 2014 Nov 13. 11: CD009519
> Ung, Y., Maziak, D., Vanderveen, J. et al. I-Fluorodeoxyglucose Positron Ukuphuma Kwamathambo e-Tomography ekuxilongweni nasekusetshenzisweni komdlavuza we-Lung: Ukubuyekeza Okuhlelekile. Journal of the National Cancer Institute . 2007. 99 (23): 1753-1767.
> I-Library Kazwelonke Kazwelonke Yezokwelapha. I-MedlinePlus. I-Pung Scan ye-Lung. Kubuyekezwe 01/27/15. https://medlineplus.gov/ency/article/007342.htm