Iingcali zezempilo kunye nezigulane zixhomekeke kwi-magnetic resonance imaging (MRI) kunyeIskeni ye-CTubuchwepheshe bokuhlalutya izicubu ezithambileyo kunye namalungu omzimba, ukubona imiba eyahlukeneyo ukusuka kwizifo eziwohlokayo ukuya kwiithumba ngendlela engangenisi ntsholongwane. Umatshini we-MRI usebenzisa intsimi enamandla yemagnethi kunye namaza erediyo eveliswe yikhompyutha ukuvelisa imifanekiso enqamlezileyo. Ke ngoko, umgangatho we-MRI uxhomekeke ekulinganeni kwentsimi yemagnethi - nokuba yincinci incinci yemagnethi ngaphakathi kwiskena se-MRI inokuphazamisa intsimi kwaye inciphise umgangatho womfanekiso we-MRI.
Indlela i-MRI esebenza ngayo kwinqanaba eliphezulu
Iimatshini zeMRI esizaziyo namhlanje zisebenza ngokomgaqo we-nuclear magnetic resonance (NMR). Ngokukodwa, iimolekyuli ezingaphakathi emzimbeni womntu ziqulethe i-hydrogen, kwaye i-nucleus ye-athomu ye-hydrogen ineproton enye esebenza njengemagnethi ene-north pole ne-south pole. Xa kusetyenziswa i-magnetic field, ii-spins zazo, ipropathi yee-subatomic particles, zihambelana ngokufanayo. Njengoko isigulana sibekwe ngaphakathi kwityhubhu ye-MRI scanner, ii-spins zeeproton ezikwiimolekyuli zomzimba ziyahambelana, zonke zijonge kwicala elinye, zifana nebhendi ehambayo eziqhelisela kwibala lebhola ekhatywayo.
Nangona kunjalo, kwanomahluko omncinci kumandla emagnethi unokubangela ukuba iiproton zilungelelane ngeendlela ezahlukeneyo, nto leyo ethetha ukuba aziyi kusabela ngendlela efanayo kwisikhuthazo. Oku kungangqinelani kunokubhidanisa ii-algorithms zokufumanisa. Enyanisweni, oku kubhaqwa okungacwangciswanga, ingxolo enkulu yesignali, okanye ukuguquguquka okungacwangciswanga kumandla esignali kunokubangela imifanekiso erhabaxa. Umfanekiso ophantsi unokubangela ukuxilongwa okungachanekanga kwaye, ngenxa yoko, izigqibo zonyango eziphosakeleyo.
(Njengoko sonke sisazi, ukwenziwa kwemifanekiso kufuneka kwenziwe ngesixhobo esiphakathi esichaseneyo, kwaye kufuneka sifakwe emzimbeni wesigulana ngokusebenzisaii-injectors zoxinzelelo oluphezulukunye neisirinji kunye neetyhubhu. ILnkMed ngumvelisi ogxile ekuncedeni ekuhanjisweni kwee-contrast agents. Yakhiwe ngokuzimeleyoI-MRIumahlukoinjektha, I-CT scan injectorkwayeI-DSA injectorzisasazwe kwizibhedlele kumazwe amaninzi ukubonelela ngeenkonzo zonyango. Ii-injector zethu azingeni manzi, ziguquguquka kakhulu, kwaye zilungele abasebenzi bezonyango ukuhamba nokusebenza; zisebenzisa unxibelelwano lweBluetooth, umqhubi akufuneki achithe ixesha elininzi ekubekeni nasekumiseleni; izixhobo zokutshintshwa zasimahla ukuba inkonzo yasemva kokuthengisa iyafumaneka. I-LnkMed izibophelele ekuboneleleni ngeemveliso kunye neenkonzo ezisemgangathweni ophezului-radiology kunye nemifanekiso.
Ukuba unomdla, wamkelekile ukubuza ngale imeyile:info@lnk-med.com)
Ukukhetha Izinto Eziyinxalenye Kubalulekile
Ukubakho kwezinto zemagnethi ngaphakathi kwe-MRI scanner tunnel kunokubangela ukuphazamisa ukufana kwendawo, kwaye nokuba ncinci kangakanani imagnethi inokuchaphazela umgangatho womfanekiso we-MRI. Ngenxa yoko, kubalulekile ukuba abavelisi bezixhobo zonyango bafune izinto, ezinje ngee-capacitors ezisisigxina, ii-trimmer capacitors, ii-inductors, kunye nezihlanganisi, ezakhiwe ngeentsimbi ezicocekileyo ezingenayo nayiphi na imagnethi elinganisekayo.
Ukunamathela kule mfuneko kuqala ngeenkqubo zokulandelela ezingqongqo kunye novavanyo, kunye nesiseko esiqinileyo kwisayensi yezinto. Umzekelo, ii-capacitors ezininzi zenziwe nge-nickel barrier finish ukuze zigcine ukunyibilika; nangona kunjalo, iipropati zemagnethi ze-nickel zenza i-capacitor ingafaneleki ukusetyenziswa kwizicelo zomfanekiso. Ngokufanayo, i-brass yorhwebo, enye into esetyenziswa rhoqo, nayo ayifanelekanga kwezi njongo.
Ingqwalasela enzulu kangaka kwiinkcukacha kwinqanaba lecandelo ithintela ukugqwetheka kwaye inciphisa imfuneko yokulungiswa komfanekiso. Ngenxa yoko, oogqirha banokuhlola kwaye baxilonge izigulana ngempumelelo ngaphandle kokufuna iinkqubo ezingakumbi zokungenelela.
Ixesha leposi: Matshi-13-2024
