Kujambula kwa PET: ndi chiyani, ndi chiyani ndipo chimachitidwa bwanji

Zamkati

• Ndi chiyani
• Zatheka bwanji

PET scan, yotchedwanso positron emission computed tomography, ndiyeso yojambula yomwe imagwiritsidwa ntchito kwambiri kuti ipeze khansa koyambirira, yang'anani kukula kwa chotupacho komanso ngati pali metastasis. Kujambula kwa PET kumatha kuwonetsa momwe thupi limagwirira ntchito, kudzera pakupanga chinthu chowulutsa radioactive, chotchedwa tracer, chomwe, chikatengeka ndi chamoyo, chimatulutsa radiation yomwe imagwidwa ndi zida ndikusinthidwa kukhala chithunzi.

Kuyeza sikumapweteka, komabe kumatha kuyambitsa mavuto ngati munthuyo ali claustrophobic, monga momwe zimachitikira ndi zida zotsekedwa. Kuphatikiza pa kugwiritsidwa ntchito kwambiri pa oncology, PET scan imathandizanso pozindikira matenda amitsempha, monga Alzheimer's ndi khunyu.

Kuyeza kwa PET ndi mayeso omwe amapezeka mu mapulani azaumoyo ndi SUS omwe amangochitika kuti akafufuze, kuzindikira ndi kuwunika khansa ya m'mapapo, ma lymphomas, khansa ya m'matumbo, khansa yamatenda ndi matenda a immunoproliferative, monga multiple myeloma, omwe ndi matenda omwe maselo am'magazi amayamba kuchulukana ndikudziunjikira m'mafupa. Pezani zomwe zizindikirozo ndizomwe mungadziwe ma myeloma angapo.

Ndi chiyani

Kujambula kwa PET ndi kuyesa koyezetsa magazi kosiyana ndi mayeso ena ojambula, monga computed tomography ndi kujambula kwa maginito, mwachitsanzo. Izi ndichifukwa choti zimalola kuwonera zovuta pama cell kudzera kutulutsa kwa radiation, ndiye kuti, imatha kuwunika momwe maselo amagwirira ntchito, kuzindikira khansa koyambirira, mwachitsanzo.

Kuphatikiza pakugwiritsa ntchito chizindikiritso cha khansa, PET scan itha kugwiritsidwa ntchito:

• Pezani mavuto amitsempha, monga khunyu ndi matenda amisala;
• Fufuzani mavuto a mtima;
• Onetsetsani kusintha kwa khansa;
• Kuwunika poyankha kuchipatala;
• Dziwani njira zamagetsi.

Kujambula kwa PET kumathandizanso kudziwa kuti matendawa ndi otani komanso kufotokozera zamtsogolo, ndiye kuti, mwayi wowongolera kapena kukulirakulira kwa wodwalayo.

Zatheka bwanji

Kuyesaku kumachitika ndi kuyamwa pakamwa, kudzera mumadzimadzi, kapena kulowa mumitsempha ya tracer, yomwe nthawi zambiri imakhala shuga yodziwika ndi mankhwala a radioactive. Chifukwa chakuti tracer ndi shuga, mayesowa sawopsa pazaumoyo, chifukwa amachotsedwa mosavuta ndi thupi. Tracer iyenera kuperekedwa kwa kusala kwa maola 4 mpaka 6, malinga ndi upangiri wa zamankhwala, ndikuwunika kwa PET kumachitika pambuyo pa ola limodzi, kuti ipatse nthawi kuti zinthu zowononga ma radio zizilowetsedwa ndi thupi, ndipo zimakhala pafupifupi ola limodzi.

Kujambula kwa PET kumapangitsa kuwerenga kwa thupi, kutenga ma radiation otulutsa ndikupanga zithunzi. Mwachitsanzo, pakufufuza zotupa, kumwa shuga ndimaselo ndi kwakukulu kwambiri, chifukwa shuga ndiye gwero la mphamvu yofunikira pakusiyanitsa kwama cell. Chifukwa chake, chithunzicho chimakhala ndi malo owoneka bwino pomwe pali shuga wochulukirapo ndipo, chifukwa chake, kutulutsa kwakukulu kwa radiation, komwe kumatha kukhala ndi chotupacho.

Pambuyo pa mayeso ndikofunikira kuti munthuyo amwe madzi ochulukirapo kuti tracer ichotsedwe mosavuta. Kuphatikiza apo, mwina pangakhale kuti pali zizindikiro zochepa zofowoka, monga kufiira, komwe tracer idalowetsedwa.

Kuyesaku kulibe zotsutsana ndipo kumatha kuchitidwa ngakhale kwa anthu omwe ali ndi matenda ashuga kapena mavuto a impso. Komabe, amayi apakati kapena oyamwitsa samalangizidwa kuti ayesere izi, monga chinthu chama radioactive chomwe chingakhudze mwana chimagwiritsidwa ntchito.