Iskena sePET yemiphunga

Isken se-lung positron emission tomography (PET) luvavanyo lokucinga. Isebenzisa into ene-radioactive (ebizwa ngokuba yi-tracer) ukukhangela izifo kwimiphunga efana nomhlaza wemiphunga.

Ngokungafaniyo nemagnetic resonance imaging (MRI) kunye nekhompyuter ye-tomography (CT), ebonisa ukwakheka kwemiphunga, ukuskena kwe-PET kubonisa indlela esebenza kakuhle ngayo imiphunga kunye nezicubu zayo.

Ukuskena i-PET kufuna isixa esincinci somkhondo. I-tracer inikwa nge-vein (IV), ihlala ingaphakathi kwengqiniba yakho. Ihamba ngegazi lakho kwaye iqokelele kumalungu nakwizihlunu. I-tracer inceda ugqirha (i-radiologist) abone iindawo ezithile okanye izifo ngokucacileyo.

Kuya kufuneka ulinde kufutshane njengoko i-tracer ifunxwe ngumzimba wakho. Oku kuhlala kuthatha iyure enye.

Emva koko, uya kulala kwitafile emxinwa, ethi ityibilike kwiskena esikhulu esimilise itonela. Iskena se-PET sifumanisa imiqondiso evela kulandelwa umkhondo. Ikhompyuter itshintsha iziphumo zibe yimifanekiso emi-3-D. Imifanekiso ibonisiwe kwisohlo kugqirha ukuba ayifunde.

Kufuneka uxoke ulele ngexesha lovavanyo. Ukuhamba kakhulu kunokuphazamisa imifanekiso kwaye kubangele iimpazamo.

Uvavanyo luthatha malunga nemizuzu engama-90.

Ukuvavanywa kwe-PET kwenziwa kunye nokuskena kwe-CT. Kungenxa yokuba ulwazi oluhlanganisiweyo oluvela kwiskena ngasinye lubonelela ngokuqonda okupheleleyo kwengxaki yezempilo. Olu dibaniso lokudibanisa lubizwa ngokuba yi-PET / CT.

Unokucelwa ukuba ungatyi nantoni na iiyure ezi-4 ukuya kwezi-6 ngaphambi kokuskena. Uya kukwazi ukusela amanzi.

Xelela umboneleli wakho wezempilo ukuba:

• Uyoyika iindawo ezixineneyo (une-claustrophobia). Unokunikwa iyeza lokukunceda uphumle kwaye uzive ungakhathazeki kangako.
• Ukhulelwe okanye ucinga ukuba unokukhulelwa.
• Unayo nayiphi na i-aleji yedayi ejoyiweyo (umahluko).
• Uthatha i-insulin yeswekile. Uya kudinga amalungiselelo akhethekileyo.

Xelela umboneleli wakho ngamayeza owasebenzisayo. Oku kubandakanya ezathengwa ngaphandle kommiselo. Amanye amayeza anokuphazamisa iziphumo zovavanyo.

Unokuziva ubambe kabukhali xa inaliti equlathe itracer ibekwe emthanjeni wakho.

Ukuskena i-PET akubangeli zintlungu. Itafile inokuba nzima okanye ibanda, kodwa ungacela ingubo okanye umqamelo.

I-intercom egumbini ikuvumela ukuba uthethe nomntu nangaliphi na ixesha.

Akukho xesha lokufumana kwakhona, ngaphandle kokuba unikwe iyeza lokuphumla.

Olu vavanyo lunokwenziwa:

• Nceda ujonge umhlaza wemiphunga, xa ezinye iimvavanyo zokucinga zinganiki mfanekiso ucacileyo
• Jonga ukuba umhlaza wemiphunga unwenwele kweminye imiphunga okanye umzimba, xa usenza isigqibo ngonyango olulungileyo
• Nceda unqume ukuba ukukhula emiphungeni (kubonwe kwi-CT scan) kunomhlaza okanye akunjalo
• Chonga ukuba lisebenza njani unyango lomhlaza

Iziphumo eziqhelekileyo zithetha ukuba ukuskena akubonisanga ngxaki kubungakanani, imilo, okanye ukusebenza kwemiphunga.

Iziphumo ezingaqhelekanga zinokubangelwa:

• Umhlaza wemiphunga okanye umhlaza wenye indawo yomzimba ethe yanwenwela kwimiphunga
• Usulelo
• Ukudumba kwemiphunga ngenxa yezinye izizathu

Iswekile yegazi okanye inqanaba le-insulin linokuchaphazela iziphumo zovavanyo kubantu abanesifo seswekile.

Isixa semitha esisetyenzisiweyo kwiskena se-PET sisezantsi. Imalunga nemilinganiselo efanayo yemitha kuninzi lweCT scan. Kwakhona imitha ayihlali ixesha elide emzimbeni wakho.

Abasetyhini abakhulelweyo okanye abancancisayo kufuneka bazise ababoneleli babo ngaphambi kokuba benze olu vavanyo. Iintsana neentsana ezikhulayo esibelekweni zichaphazeleka ngakumbi ziziphumo zemitha yelanga kuba amalungu azo asakhula.

Kunokwenzeka, nangona kungenakulindeleka kakhulu, ukuba ube nempendulo engavumiyo kwizinto ezinemitha yeathom. Abanye abantu baneentlungu, ukuba bomvu, okanye ukudumba kwindawo yenaliti. Oku kuya kuhamba kungekudala.

Iskena sePET esifubeni; Lung positron emission tomography; I-PET - isifuba; I-PET - umphunga; I-PET - ithumba lokucinga; I-PET / CT - imiphunga; Isidumbu sepulmonary nodule-PET

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I-Vansteenkiste JF, iDeroose C, iDooms C.Ipositron ikhupha i-tomography.Ku: Broaddus VC, Mason RJ, Ernst JD, et al, ii-eds. Incwadi kaMurray kunye neNadel yeyeza lokuphefumla. Umhla wesi-6. IPhiladelphia, PA: Elsevier Saunders; I-2016: isahluko 21.