Ukuvavanywa kwePET yobuchopho

Uvavanyo lwe-positron emission tomography (PET) luvavanyo lokucinga kwengqondo. Isebenzisa into enemitha yeathom ekuthiwa yitracer ukukhangela isifo okanye ukwenzakala kwingqondo.

Ukuskena i-PET kubonisa indlela ezisebenza ngayo iingqondo kunye nezicubu zayo. Olunye uvavanyo lwe-imaging, olufana nemagnetic resonance imaging (MRI) kunye nekhompyuter ye-tomography (CT) iskena kuphela ukuveza ubume bengqondo.

Ukuskena i-PET kufuna isixa esincinci sezinto ezinemitha ye-radio (tracer). Le tracer inikwa ngomthambo (IV), ihlala iphakathi engqinibeni. Okanye, uphefumla izinto ezinemitha ye-radio njengegesi.

Umkhondo uhamba egazini lakho kwaye uqokelela kumalungu nakwizihlunu. I-tracer inceda umboneleli wakho wezempilo ukuba abone iindawo ezithile okanye izifo ngokucacileyo.

Ulinda kufutshane njengoko i-tracer ifunxwa ngumzimba wakho. Oku kuhlala kuthatha iyure enye.

Emva koko, ulele kwitafile emxinwa, ethi ityibilike kwiskena esikhulu esimile. Iskena se-PET sifumanisa imiqondiso evela kulandelwa umkhondo. Ikhompyuter itshintsha iziphumo zibe yimifanekiso emi-3-D. Imifanekiso ibonisiwe kwisohlo ukuze umboneleli wakho ayifunde.

Kuya kufuneka uhlale uthe cwaka ngexesha lovavanyo ukuze umatshini avelise imifanekiso ecacileyo yengqondo yakho. Unokucelwa ukuba ufunde okanye ubhale iileta ukuba imemori yakho iyavavanywa.

Uvavanyo luthatha phakathi kwemizuzu engama-30 kunye neeyure ezi-2.

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

Xelela umboneleli wakho ukuba:

• Uyayoyika indawo ekufutshane (ine-claustrophobia). Unokunikwa iyeza lokukunceda uzive usozela kwaye ungakhathazeki kangako.
• Ukhulelwe okanye ucinga ukuba unokukhulelwa.
• Unayo nayiphi na i-aleji yedayi ejoyiweyo (umahluko).
• Uthathe i-insulin yeswekile. Uya kudinga amalungiselelo akhethekileyo.

Soloko uxelela umboneleli wakho ngamayeza owathathayo, kubandakanya nalawo athengwe ngaphandle kommiselo. Ngamanye amaxesha, amayeza aphazamisa 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.

Emva kovavanyo, sela ulwelo oluninzi ukukhupha umkhondo emzimbeni wakho.

Ukuskena i-PET kunokubonisa ubungakanani, ukumila, kunye nokusebenza kwengqondo, ukuze ugqirha wakho aqiniseke ukuba isebenza ngokufanelekileyo. Ihlala isetyenziswa xa ezinye iimvavanyo, ezinje nge-MRI scan okanye i-CT scan, zinganiki lwazi lwaneleyo.

Olu vavanyo lunokusetyenziselwa:

• Ukuchonga umhlaza
• Lungiselela utyando lokuxhuzula
• Nceda ufumane isifo sengqondo esixhalabisayo ukuba ezinye iimvavanyo neemviwo aziboneleli ngolwazi olwaneleyo
• Xelela umahluko phakathi kwesifo se-Parkinson kunye nezinye iingxaki zokuhamba

Kungathathwa amanyathelo aliqela okuvavanywa kwe-PET ukumisela ukuba uphendula njani kunyango lomhlaza okanye esinye isifo.

Akukho ngxaki zifunyenwe kubungakanani, imilo, okanye ukusebenza kwengqondo. Akukho ndawo apho i-tracer iqokelele ngokungaqhelekanga.

Iziphumo ezingaqhelekanga zinokubangelwa:

• Isifo i-Alzheimer okanye isifo sengqondo esixhalabisayo
• Ithumba lobuchopho okanye ukusasazeka komhlaza ukusuka komnye ummandla womzimba ukuya kwingqondo
• Ukuxhuzula, kwaye unokuchonga apho ukuxhuzula kuqala khona kwingqondo yakho
• Ukuphazamiseka kwentshukumo (enjengesifo sikaParkinson)

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.

Kungenzeka, nangona kungenakulindeleka kakhulu, ukuba ube nempendulo engahambelaniyo nezinto ezinemitha yeathom. Abanye abantu baneentlungu, ukuba bomvu, okanye ukudumba kwindawo yenaliti.

Kuyenzeka ukuba ube neziphumo ezingezizo kwiskena sePET. Iswekile yegazi okanye amanqanaba e-insulin anokuchaphazela iziphumo zovavanyo kubantu abanesifo seswekile.

Ukuvavanywa kwe-PET kunokwenziwa kunye nokuskena kwe-CT. Olu dibaniso lokudibanisa lubizwa ngokuba yi-PET / CT.

Ubungqina be-positron emission tomography; Ukuskena i-PET-ingqondo

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