Ukuvavanywa kwe-PET yemiphunga

Umxholo

• Yenziwa njani i-lung PET PET?
• Indlela yokulungiselela
• Ukuvavanywa kwemiphunga ye-PET kunye nesiteji

Iskena sePET yemiphunga

I-Positron emission tomography (PET) yindlela ephucukileyo yokucinga ngonyango. Isebenzisa umkhondo we-radioactive ukukhomba umahluko kwizicubu kwinqanaba lemolekyuli. Uvavanyo lwe-PET lomzimba uphela lunokubona umahluko kwimisebenzi yomzimba, njengokuhamba kwegazi, ukusetyenziswa kweoksijini, kunye nokuthathwa kweswekile (iswekile) iimolekyuli. Oku kuvumela ugqirha wakho ukuba abone indlela amalungu athile asebenza ngayo.

Imicimbi yemiphunga, ugqirha emva koko unokujonga ngokuthe ngqo kwindawo yemiphunga ngelixa etolika imifanekiso ye-PET scan.

Iskena se-PET sokuvavanywa kwemiphunga sihlala sidityaniswa nokuskena kwe-lung ye-lung ukubona imeko ezinje ngomhlaza wemiphunga. Ikhompyuter idibanisa ulwazi olusuka kwizikeni ezimbini ukubonelela ngomfanekiso ntathu, oqaqambisa naziphi na iindawo zomsebenzi wokukhawulezisa ukutya. Le nkqubo yaziwa njengokuhlanganiswa komfanekiso. Izikena zivumela ugqirha wakho ukuba ahlule phakathi kwezifo ezinobungozi (ezingonakalisiyo) kunye nezibi (zomhlaza).

Yenziwa njani i-lung PET PET?

Ukuvavanywa kwemiphunga ye-lung, ufakwe ngaphakathi ngenaliti ngenani elincinci leswekile equlathe into ene-radioactive tracer malunga neyure ngaphambi kokuskena. Rhoqo, kusetyenziswa isotopu ye element element fluorine. Inaliti inokuhlaba okwethutyana, kodwa kungenjalo inkqubo ayinabuhlungu.

Nje ukuba ungene kumjelo wegazi, into elandelwayo iyaqokelelana kwizitho zakho nakwizicubu kwaye iqala ukukhupha amandla ngohlobo lwemitha ye-gamma. Iskena se-PET siyifumana le mitha kwaye senze imifanekiso eneenkcukacha kuyo. Imifanekiso inokunceda ugqirha wakho aqwalasele ubume nokusebenza kwelungu elithile okanye indawo evavanyiweyo.

Ngexesha loviwo, kuya kufuneka ulale phantsi kwitafile emxinwa. Le tafile ityibilika ngaphakathi kwiskena esimile okweetonela. Uyakwazi ukuthetha neengcali ngelixa ukuskena kusenzeka, kodwa kubalulekile ukuba ulale ungagungqi ngelixa iskena siqhuba. Ukuhamba kakhulu kunokubangela imifanekiso engacacanga.

Ukuskena kuthatha imizuzu engama-20 ukuya kwengama-30.

Indlela yokulungiselela

Ugqirha wakho uyakukucela ukuba ungatyi okanye usele nantoni na ngaphandle kwamanzi iiyure ezininzi ngaphambi kokuba uskene. Kubaluleke kakhulu ukulandela le miyalelo. Ukuskena i-PET kuhlala kuxhomekeke ekubekeni esweni umahluko omncinci kwindlela iiseli ezisebenzisa ngayo iishukela. Ukutya i-snack okanye ukusela isiselo esinoshukela kunokuphazamisa iziphumo.

Ukufika kwakho, unokucelwa ukuba utshintshe unxibe impahla yasesibhedlele, okanye unokuvunyelwa ukuba unxibe eyakho impahla. Uya kudinga ukususa naziphi na izinto zesinyithi emzimbeni wakho, kubandakanya ubucwebe.

Tshela ugqirha wakho ukuba uthatha amayeza okanye izongezo. Amanye amayeza, anjengalawo anyanga isifo seswekile, anokuphazamisa iziphumo zokuvavanywa kwe-PET.

Ukuba awonwabanga kwiindawo ezivalekileyo, ugqirha wakho unokukunika amayeza okukunceda uphumle. Esi sidakamizwa sinokubangela ukozela.

Iskena se-PET sisebenzisa inani elincinci le-radioactive tracer. Isicoci se-radioactive asizukusebenza emzimbeni wakho ngaphakathi kweeyure okanye iintsuku ezimbalwa. Iya kugqitywa iphume emzimbeni wakho ngomchamo nakwisihlalo.

Nangona ukubonakaliswa kwemitha kwi-PET scan kuyinto encinci, kuya kufuneka wazise ugqirha wakho ngaphambi kokuba wenze nayiphi na inkqubo esebenzisa i-radiation ukuba ukhulelwe okanye uncancisa.

Ukuvavanywa kwemiphunga ye-PET kunye nesiteji

Ukuskena imiphunga ye-PET kukwasetyenziselwa ukubeka umhlaza wemiphunga. Izicubu ezinenqanaba eliphezulu lokutya (ukusetyenziswa kwamandla), ezinje ngamathumba omhlaza wemiphunga, zifunxa izinto ezingaphezulu kwezinye izicwili. Ezi ndawo zigqamile kuvavanyo lwePET. Ugqirha wakho unokusebenzisa imifanekiso enamacala amathathu ukufumana amathumba omhlaza okhulayo.

Izidumba zomhlaza eziqinileyo zinikezelwa inqanaba eliphakathi kwe-0 kunye ne-4. Umzekelo, inqanaba lesine lomhlaza liqhubele phambili, lisasazekile, kwaye kuhlala kunzima ukunyanga kunesigaba 0 okanye 1 somhlaza.

Isiteji sikwasetyenziselwa ukuqikelela imbonakalo. Umzekelo, umntu ofumana unyango xa efunyaniswe kwinqanaba 0 okanye 1 umhlaza wemiphunga kunokwenzeka ukuba aphile ixesha elide kunomntu onomhlaza wesigaba sesine.

Ugqirha wakho unokusebenzisa imifanekiso kwi-lung PET scan ukumisela elona khondo liphezulu lonyango.