I-imaging ye-magnetic resonance imaging, edla ngokubizwa ngokuba yi-MRI, yindlela yokuxilonga engaphazamisiyo esetyenziswa kakhulu ngabasebenzi bezempilo ukujonga ubume bomzimba wangaphakathi.I-MRI isebenzisa imagnethi eyomeleleyo kunye namaza erediyo ukwenza imifanekiso eneenkcukacha yamalungu omzimba, izicubu kunye namathambo.
Ngokuphathelele umatshini we-MRI, umbuzo osoloko uvela ezingqondweni zabantu kukuba kutheni igumbi le-MRI kufuneka lifakwe ubhedu?Impendulo yalo mbuzo ilele kwimigaqo ye-electromagnetism.
Xa umatshini we-MRI uvuliwe, uvelisa indawo enamandla yamagnetic enokuchaphazela izixhobo zombane ezikufutshane kunye neenkqubo.Ubukho bamandla kazibuthe bunokuphazamisana nezinye izixhobo zombane ezifana neekhompyutha, iifowuni, kunye nezixhobo zonyango, kwaye zinokuchaphazela nokusebenza kwezincedisi-ntliziyo.
Ukukhusela ezi zixhobo kunye nokugcina ingqibelelo yezixhobo zokucinga, igumbi le-MRI lihlanganisweifoyile yobhedu, esebenza njengomqobo kwintsimi yamagnetic.Ubhedu lusebenza kakhulu, nto leyo ethetha ukuba lufunxa kwaye luwasasaze amandla ombane kwaye lusebenza kakuhle ekuboniseni okanye ekukhuseleni umhlaba wemagnethi.
Ilayini yobhedu kunye ne-foam ekhuselayo kunye neplywood yenza ikheji yaseFaraday ejikeleze umatshini weMRI.Ikheji yeFaraday yindawo ebiyelweyo eyenzelwe ukuvala amasimi ombane kunye nokuthintela ukuphazamiseka kwezixhobo zombane.I-Cage isebenza ngokusabalalisa intlawulo yombane ngokulinganayo kuwo wonke umphezulu wekheji, ngokufanelekileyo ithomalalisa naziphi na iindawo zangaphandle ze-electromagnetic.
Ifoyile yobheduayisetyenziselwa kuphela ukukhusela, kodwa kunye nokubeka phantsi.Oomatshini be-MRI bafuna imisinga ephezulu ukuba idluliselwe kwiikhoyili ezivelisa indawo yamagnetic.Le misinga inokubangela ukugcwala kombane ongashukumiyo onokuwonakalisa izixhobo zokusebenza nokuba yingozi kwizigulana.I-foil yobhedu ifakwe kwiindonga kunye nomgangatho wegumbi le-MRI ukubonelela indlela yale ntlawulo yokukhupha ngokukhuselekileyo emhlabeni.
Ukongeza, ukusebenzisa ubhedu njengento ekhuselayo kubonelela ngeenzuzo ezininzi kwiindlela zokukhusela zemveli.Ngokungafaniyo nelothe, ubhedu luthambile kakhulu kwaye lunokwenziwa ngokulula kwiimilo ezahlukeneyo kunye nobukhulu ukuhlangabezana neemfuno ezithile zegumbi leMRI.Ikwayonga kakhulu kwaye ihambelana nokusingqongileyo kunelothe.
Ukuqukumbela, amagumbi e-MRI afakwe ngefoyile yobhedu ngesizathu esihle.Iipropati ezikhuselayo zeifoyile yobhedukhusela izixhobo zokucinga ekuphazamisekeni kwe-electromagnetic yangaphandle ngelixa uqinisekisa ukhuseleko lwesigulana kunye nabasebenzi.I-foil yobhedu idibaniswe nezinye izinto zokwenza i-Faraday cage equkethe i-magnetic field eyenziwa ngumshini we-MRI ngendlela ekhuselekileyo nelawulwayo.Ubhedu sisibhengezo esihle sombane, kunye nokusebenzisaifoyile yobheduiqinisekisa ukuba umatshini weMRI usekelwe ngokufanelekileyo.Ngenxa yoko, ukusetyenziswa kwe-foil yobhedu kwi-MRI yokukhusela ibe yinto eqhelekileyo kulo lonke ishishini lezonyango, kwaye ngenxa yesizathu esihle.
Ixesha lokuposa: May-05-2023