Chidzidzo ichi chakatsigirwa nechirongwa chemutungamiri wenyika yeRussia Chesayenzi Cherechedzo uye chakaburitswa muMagineti yemagineti resonance mumushonga. "Pasi rose, kuwanikwa kwedu kuchabvumirana kukudziridza monsation yerudzi rwechiratidzo," anotsanangura kudaro mumwe wevanyori veSt. Scan Area, uye zvakare zviri nani kudzora maitiro pachayo. Dudziro yemhedzisiro yekupedzisira inova nyore uye nekukurumidza. "
Magnetic Resonance topography - Iyo nzira mumushonga wemazuva ano yakakosha sekudhura. Zvinokubvumira kuti uongorore nhengo dzemukati dzemunhu mune zvisiri zvekusangana (pasina yakananga autopsy) uye inoshanda isina maitiro ekutsamwa zvichienzaniswa X-Ray tomography. Nekudaro, imwe zvishandiso zvakakosha kwete zvisingasviki mamirioni gumi nemashanu rubles (kwete kuverenga mutengo webasa) uye unogara munzvimbo inoenderana nenzvimbo diki yekuchengetedza.
Panguva imwecheteyo, kunaka uye kurongeka kwezvifananidzo zvinowanzosiya zvakawanda zvekuda. Mumabasa emakiriniki mri, mandographs ane mwero wemunda wehafu uye matatu tesla anoshandiswa. Nekudaro, nekuda kwebasa rakabatana nekutsvaga uko kunodiwa kuti uwane kugadziriswa kwakanyanya, tomograph nemunda wemunda kana kupfuura tesla zvinoshandiswa.
Nheyo yekushanda yeMRI iri pamusoro pekudyidzana kweiyo radio frequency magineti munda neHydrogen Nuclei. Panguva imwecheteyo, sezvo iyo nuclei yematomu eHydrogen mumuviri wedu mapoka madiki, ivo vakatungamirwa mumunda wemunda unotendeuka munzira imwe.
Chokwadi, mamiriro ezvinhu aya asina kubatsirwa nesimba, uye maatomu anodzoserwa ku "nguva yechokwadi" nekukurumidza nekukurumidza, kana ivo vachangobva kuratidza simba rakawandisa. Izvo zvinoenderana nenhamba yayo kuti munhu anogona kunzwisisa kuti mune maatomu mazhinji echimwe chinhu mune chaicho mitezo yemunhu. Nekudaro, chiitiko cheuropi chinoongororwa - mushure mezvose, iyo eropa (uye saka mvura ine hydrogen maatomu) mune imwe nharaunda, iyo yakakwira basa rayo. Izvo zvinokwanisikawo kuona tumors mumatanho ekutanga, sezvo masero akakanganisika anogadzira manyoro kupfuura izvo zvakajairwa.
Magineti minda yakawanikwa uchishandisa iyo yakagadziridzwa phosed latice / © Avdievich et al. / Magnetic Resonance mumushonga, 2021
Kuti ugadzire redhiyo radio Ivo vane mukana wakakosha: Kubvumidza iwe uchinja nharaunda yenyaya yekutsvaga, usingafambe panguva imwe chete iyo lattice pachayo. Dipole Antennas inogona kuiswa seyakagadzirwa nezvinhu zvepfuma. Nekudaro, panogona kunge paine kubatana pakati pemirairo inoshanda, iyo inoderedza kushanda kweiyo nguva yese yeredhiyo coil.
Kuti udzivise izvi, zvinopfuura dipoles zvinoshandiswa. Kazhinji ivo vari mune yakafanana inoshanda, uye inogadzirisa dambudziko. Asi nzira iyi inofanira kushandiswa nekuchenjerera, sezvo yakanyanya maDipisi inofambidzana nemunda, ichirongedza homogeneity yayo, iyo pakupedzisira inotungamira mukudzikira kwemufananidzo wekupedzisira, izvo zvinoreva kuti mhedzisiro yekuongororwa kwese kwekurapa.
Masayendisiti anobva kuyunivhesiti yeItmo akachinja geometry yemakiromita, achiisa madhiri epasipiti perpendicular kuti ashande. Zvakare, kuve nechokwadi chekubatana kwakasimba kwemagetsi pakati pemirairo yefizikisi, chinhu chingangoita chakaendeswa kumucheto wegirini. Usati waenderera mberi nekugadzira antenna itsva antenna, vaongorori vakaitisa modelling, izvo zvakaita kuti zvikwanisike kuongorora chimiro. Kubudirira kwayo kwakaedzwa zvemhando uye kushandisa makombuta kufungidzira. Mukuwedzera, fizikisi yaifamba nekuedza nekuita uropi hwevamwe vanhu vemuhurume. Cheki yacho yakaratidza kuti nzvimbo yeDipole inogadzirisa dambudziko rakabatana nehonzo remunda, uye hukama pakati pemirairo inoshanda hairatidzike.
Kunobva: Naked Science