Phunziroli linathandizidwa ndi pulogalamu ya Purezidenti ya ndalama za ku Russia ndikufalitsidwa mu maginito a maginito a mankhwala. "Padera Pachidziwikire Zomwe Tinalola Kulima Zoyeserera Kuti Muzifufuzire, Wophunzira Wophunzirayo National, malo owoneka bwino, komanso bwino kuwongolera momwemokha. Kutanthauzira kwa zotsatira zomaliza kumakhala kosavuta komanso mwachangu. "
Magnetic resonagrance Tomagraphy - Njira yomwe amagwiritsa ntchito mankhwala amakono ndiyofunikira kwambiri. Zimakupatsani mwayi wofufuza ziwalo zamkati mwa munthu yemwe sakuwonongeka (popanda kuwongolera mwachindunji) ndipo alibe mawu othandiza poyerekeza ndi X-ray tomography. Komabe, zida imodzi ndizofunikira zosakwana 15 miliyoni (osawerengera mtengo wa ntchito) ndipo imakhala ndi malo omwe amabwera ndi malo ochepa osungirako.
Nthawi yomweyo, mtundu ndi kulondola kwa zithunzi nthawi zambiri zimasiyidwa. Mu ntchito zamankhwala achipatala Mri, ma TOMOgragy okhala ndi gawo la theka ndi ma tesla atatu amagwiritsidwa ntchito. Komabe, chifukwa cha ntchito zomwe zikugwirizana ndi kafukufuku komwe akufunika kuti athe kupeza maphunziro apamwamba, ma TOMOgragy ndi gawo la tesla 7 kapena kupitilira apo amagwiritsidwa ntchito.
Mfundo yogwiritsira ntchito Mri imatengera kulumikizana kwa maginito a radio frequenc ndi hydrogen nyukiliya. Nthawi yomweyo, kuyambira pa maatomu a hydrogen m'thupi lathu ndi maginiti ang'onoang'ono, amakhala omangika pamiyendo imodzi kutembenukira mbali imodzi.
Zowona, izi ndizopanda mphamvu zokhazokha, ndipo ma atomu amabwereranso ku "nthawi zonse" motero, atangoyang'ana mphamvu zochulukirapo. Zili molingana ndi chiwerengero chake kuti munthu amvetsetse ngati pali maatomu ambiri omwe ali mu minofu yoyenera ya munthu. Chifukwa chake, ntchito ya ubongo imafufuzidwa - pambuyo pa zonse, magazi ochulukirapo (chifukwa chake madzi ndi ma atomu a hydrogen) m'dera linalake. Ndikothekanso kuzindikira zotupa kumayambiriro, popeza maselo omwe akhudzidwawo amapanga madzi ambiri kuposa masiku onse.
Minda ya Magnetic imapezeka pogwiritsa ntchito malawi okhazikika / © Avdievich et al. / Magnetic resonance mu mankhwala, 2021
Kuti apange magilesi a radio pafupipafupi a TOMOgragy okhala ndi gawo la minda, oposa 7 a Tesna amagwiritsa ntchito antetna array. Ali ndi phindu lofunika: Lolani kuti musinthe ukadaulo wa kafukufukuyu, popanda kusuntha nthawi yomweyo malawi. Diple antennas angagwiritsidwe ntchito ngati zinthu zolaula. Komabe, pakhoza kukhala kulumikizana pakati pa ma blogles ogwira, omwe amachepetsa kuchita bwino kwa coil yonse ya payilesi.
Pofuna kupewa izi, ma depoles olosera amagwiritsidwa ntchito. Nthawi zambiri amakhala ofanana ndi achangu, ndipo amathetsa vutoli. Koma njirayi iyenera kugwiritsidwa ntchito mosamala, popeza ma dipoki ambiri omwe amakhala ndi mundawo akuyenera kulumikizana ndi mundawo, komwe kumapangitsa kuchepa kwa chithunzi chomaliza, chomwe chimatanthawuza kuti zotsatira za mayeso onse azachipatala.
Asayansi ochokera ku yunivesite ya itmo adasintha geometry ya ma dipoli, kuyika ma bwindives aspericular mpaka kugwira ntchito. Komanso, kuonetsetsa kulumikizana kwamagetsi pakati pa ma dipols a sponsecists, chinthu chongokhala chimasunthira kumapeto kwa grille. Musanayambe kupanga chovala chatsopano, ofufuzawo anachita zitsanzo, zomwe zimapangitsa kuti zitheke. Kuchita kwake kunayesedwa kutsanziridwa ndi kugwiritsa ntchito makompyuta. Kuphatikiza apo, akatswiri akatswiri a kuyesa popanga ubongo wa amuna akulu akulu. Chowonadi chidawonetsa kuti malo oterewa amathetsa vuto lomwe limakhudzana ndi gawo la mundawo, ndipo ubalewo pakati pa ma diponsa yogwira siikuwoneka.
Source: Sayansi yamanyazi