Mafakitale a Radionuclide tsopano akugwiritsidwa ntchito mwamphamvu mankhwala a nyukiliya ndi njira zamakono zogwiritsira ntchito. Imodzi mwa njira zophunzitsira zowonjezera mazira ndi positron emission tomography. Ubwino wa matenda oterewa ndizotheka kumanga njira zitatu za chilengedwe ndi ziwalo za mkati.
Kodi ndi zotani-positron tomography?
Chofunika kwambiri cha njirayi chiri mu katundu wa positrons (particles ndi ndalama zabwino). Amakhala ndi mphamvu zosiyana zokhudzana ndi mphamvu zamagetsi.
Pamaso pa positron emission tomography kapena PET, mankhwala ofooketsa amaikidwa mu intravenously, kawirikawiri amakhala ndi 18, koma nthawizina carbon-11, oxygen 15 ndi nitrogen-13 amagwiritsidwa ntchito. Kwa kanthawi munthu amafunika kukhala mu mpumulo, kotero kuti positron-emitting isotopes imagawidwa m'thupi. Pambuyo pake, wodwalayo amaikidwa mu chipangizo chapadera, chofanana ndi MRI, kumene thupi lake limakhala ndi ma radiation opanda vuto. Ngati pali chisokonezo chilichonse mu njira zamagetsi kapena zakunja zakunja, zigawozi zimapangitsa zinthu zambiri zowonongeka, zomwe zimalembedwa ndi zipangizo zamakompyuta. Ndondomeko zooneka ngati zotupa, ndi kachilombo zimasiyana ndi ziwalo zowoneka bwino.
Kodi positron emission tomography ili kuti?
Kwenikweni, njira yamakono yogwiritsidwa ntchito ikugwiritsidwa ntchito pa matenda a khansa. PET ikhoza kuyang'ana kansa kumayambiriro kapena masitepe, pamene palibe chizindikiro chilichonse. Zoonadi, tomography amagwiritsidwa ntchito pozindikira zotupa:
- chiberekero;
- kuwala ;
- prostate gland;
- mimba.
Njirayi imapereka njira yowunikira mazira opangidwa kuchokera ku 1 mm, komanso kuganizira za njira za metastasis. M'pofunika kudziwa kuti tomography imathandiza kudziwa momwe mankhwala amathandizira. Ndondomekoyi ikatha pambuyo pa mankhwala amasonyeza kuchepa kwa ntchito ya maselo a khansa, kukula kwawo ndi chitukuko.
Kuonjezera apo, PET imagwiritsidwa ntchito m'thupi pofuna kulembetsa matenda a mtima, matenda ozungulira mthupi, kupweteka kwa mitsempha yambiri, zotsatira za matenda a mtima ndi kuthamanga, stenosis. Teknolojiyi imapereka mawonekedwe a minofu ya mtima m'magulu atatu mu magawo 60.
Komanso positron pomission tomography ya ubongo ntchito mwakhama. Kuzindikira mwa PET kumalola kuti azindikire:
- zovuta;
- khansara;
- malingaliro;
- khunyu;
- Matenda a Alzheimer;
- kusokonezeka maganizo;
- kupweteka;
- zotsatira za kugwidwa , kupweteka kwa ischemic.
Monga momwe chithandizo chamankhwala chimasonyezera, ngati mukuchita positron emission tomography mu nthawi, mukhoza kukhala ndi mankhwala oyenera komanso oyenera, omwe nthawi zambiri amasiyana kwambiri
Chinthu chofunika kwambiri ndicho kugwiritsa ntchito PET mu sayansi. Matenda a Alzheimer's in the initial form ndi othandizira kwambiri mankhwala, ndipo matenda omwe ali ndi matendawa amathandiza kwambiri kuchepetsa kufala kwa matenda. Kuchedwa koyambirira kwa mankhwala kumachepetsa kuchepa kwa imfa ya minofu ya ubongo ndi kutha kwa ntchito zina za madera ake.