Xa sisiya esibhedlele, ugqirha uza kusinika uvavanyo oluthile lwemifanekiso ngokwemfuno yemeko, njenge-MRI, i-CT, ifilimu ye-X-ray okanye i-Ultrasound. I-MRI, i-magnetic resonance imaging, ebizwa ngokuba yi-"nuclear magnetic", makhe sibone ukuba abantu abaqhelekileyo kufuneka bazi ntoni nge-MRI.
Ngaba kukho imitha kwi-MRI?
Okwangoku, i-MRI yeyona ndawo yodwa icandelo le-radiology elingenazo izinto zovavanyo lwe-radiation, abantu abadala, abantwana kunye nabasetyhini abakhulelweyo abanokuyenza. Nangona i-X-ray kunye ne-CT zaziwa ngokuba ne-radiation, i-MRI ikhuselekile.
Kutheni ndingakwazi ukuthwala izinto zesinyithi kunye nemagnethi emzimbeni wam ngexesha le-MRI?
Umzimba oyintloko womatshini we-MRI ungafaniswa nemagnethi enkulu. Nokuba umatshini uvuliwe okanye awuvuliwe, amandla amakhulu emagnethi kunye namandla amakhulu emagnethi omatshini aya kuhlala ekho. Zonke izinto zesinyithi ezinentsimbi, ezifana neekliphu zeenwele, iingqekembe, iibhanti, iiphini, iiwotshi, imigexo, amacici kunye nezinye izinto zobucwebe kunye nempahla, kulula ukuzifunxa. Izinto zemagnethi, ezifana namakhadi emagnethi, amakhadi e-IC, ii-pacemaker, i-hearing AIDS, iifowuni eziphathwayo kunye nezinye izixhobo ze-elektroniki, kulula ukuzifunxa okanye zonakale. Ke ngoko, abanye abantu abahamba nabo kunye namalungu osapho akufuneki bangene kwigumbi lokuskena ngaphandle kwemvume yabasebenzi bezonyango; Ukuba isigulana kufuneka sikhatshwe ngumntu ohamba nathi, kufuneka kuvunyelwene ngabasebenzi bezonyango kwaye balungiselelwe ngokweemfuno zabasebenzi bezonyango, njengokungazisi iifowuni eziphathwayo, izitshixo, iiwallet kunye nezixhobo ze-elektroniki kwigumbi lokuskena.
Izinto zesinyithi kunye nezinto zemagnethi ezifunxwe ngoomatshini beMRI ziya kuba nemiphumo emibi kakhulu: okokuqala, umgangatho womfanekiso uya kuphazamiseka kakhulu, kwaye okwesibini, umzimba womntu uya kwenzakala lula kwaye umatshini uya konakala ngexesha lenkqubo yokuhlolwa. Ukuba i-injection yesinyithi emzimbeni womntu ingeniswa kwi-magnetic field, i-magnetic field enamandla ingenza ubushushu be-implant bunyuke, bube shushu kakhulu kwaye bonakalise, kwaye indawo ye-implant emzimbeni wesigulana inokutshintsha, kwaye ikhokelele kumanqanaba ahlukeneyo okutsha kwindawo ye-implant yesigulana, enokuba nzima njengokutsha kwenqanaba lesithathu.
Ngaba i-MRI ingenziwa ngamazinyo okufakelwa?
Abantu abaninzi abanamazinyo okufakelwa baxhalabile ngokungakwazi ukufumana i-MRI, ingakumbi abantu abadala. Enyanisweni, kukho iintlobo ezininzi zamazinyo okufakelwa, njengeemazinyo aqingqiweyo kunye namazinyo okufakelwa ashukumayo. Ukuba izinto ezifakelweyo aziyontsimbi okanye i-titanium alloy, azinampembelelo ingako kwi-MRI. Ukuba amazinyo okufakelwa aneenxalenye zesinyithi okanye zemagnethi, kungcono ukususa amazinyo okufakelwa asebenzayo kuqala, kuba kulula ukuhamba kwindawo yemagnethi kwaye kuchaphazela umgangatho wokuhlolwa, nto leyo eya kuba yingozi kukhuseleko lwezigulane; Ukuba ngamazinyo okufakelwa asisigxina, ungakhathazeki kakhulu, kuba amazinyo okufakelwa asisigxina ngokwawo awayi kuhamba, izinto eziveliswayo zincinci kakhulu. Umzekelo, ukwenza i-brain MRI, amazinyo okufakelwa asisigxina anempembelelo ethile kwifilimu (oko kukuthi, umfanekiso) othathiweyo, kwaye impembelelo incinci kakhulu, ngokubanzi ayichaphazeli ukuxilongwa. Nangona kunjalo, ukuba inxalenye yovavanyo ikwindawo yemazinyo okufakelwa, isenempembelelo enkulu kwifilimu, kwaye le meko incinci, kwaye abasebenzi bezonyango kufuneka badibane kwindawo yesiganeko. Musa ukuyeka ukutya ngenxa yokoyika ukukrwitshwa, kuba awuyenzi i-MRI kuba unezinyo zokufakelwa ezilungisiweyo.
Kutheni ndiziva ndishushu kwaye ndibila ngexesha le-MRI?
Njengoko sonke sisazi, iifowuni eziphathwayo ziya kuba shushu kancinci okanye zishushu emva kokufowuna, ukukhangela i-intanethi okanye ukudlala imidlalo ixesha elide, oku kubangelwa kukwamkelwa rhoqo kunye nokudluliselwa kwemiqondiso ebangelwa ziifowuni eziphathwayo, kwaye abantu abafumana i-MRI bafana neefowuni eziphathwayo. Emva kokuba abantu beqhubeka befumana imiqondiso ye-RF, amandla aya kukhutshwa ebushushwini, ngoko baya kuziva beshushu kancinci baze bakhuphe ubushushu ngokubila. Ke ngoko, ukubila ngexesha le-MRI kuyinto eqhelekileyo.
Kutheni kukho ingxolo engaka ngexesha le-MRI?
Umatshini we-MRI unenxalenye yangaphakathi ebizwa ngokuba yi-"gradient coil", evelisa umsinga otshintsha rhoqo, kwaye utshintsho olubukhali lomsinga lukhokelela ekungcangcazelweni kwekhoyili okuphindaphindekayo, okuvelisa ingxolo.
Okwangoku, ingxolo ebangelwa zizixhobo ze-MRI ezibhedlele ngokubanzi yi-65 ~ 95 decibels, kwaye le ngxolo inokubangela umonakalo othile kwiindlebe zezigulane xa zifumana i-MRI ngaphandle kwezixhobo zokukhusela iindlebe. Ukuba ii-earplugs zisetyenziswa ngokufanelekileyo, ingxolo ingancitshiswa ibe yi-10 ukuya kwi-30 decibels, kwaye ngokubanzi akukho monakalo kwiindlebe.
Ngaba udinga "uvavanyo" lwe-MRI?
Kukho udidi lovavanyo kwi-MRI olubizwa ngokuba yi-enhanced scans. I-enhanced MRI scan ifuna inaliti ye-intravenous yeyeza elibizwa ngokuba yi-radiologists ngokuba yi-"contrast agent," ikakhulu i-contrast agent equlethe "i-gadolinium." Nangona ukwanda kwe-reactions engalunganga nge-gadolinium contrast agents kuphantsi, ukusuka kwi-1.5% ukuya kwi-2.5%, akufanele kungananzwa.
Iimpendulo ezimbi ze-gadolinium contrast agents ziquka isiyezi, intloko ebuhlungu engapheliyo, isicaphucaphu, ukuhlanza, ukurhawuzelela, ukuphazamiseka kwencasa, kunye nokubanda kwindawo yokufakwa inaliti. Amathuba eempendulo ezimbi kakhulu aphantsi kakhulu kwaye anokuzibonakalisa njengokuphelelwa ngamandla, ukuncipha koxinzelelo lwegazi, i-bronchial asthma, i-pulmonary edema, kwanokufa.
Uninzi lwezigulane ezineempembelelo ezimbi kakhulu zazinembali yesifo sokuphefumla okanye isifo se-allergy. Kwizigulane ezingakwaziyo ukusebenza kakuhle kwezintso, ii-gadolinium contrast agents zinokunyusa umngcipheko we-renal systemic fibrosis. Ke ngoko, ii-gadolinium contrast agents azisetyenziswa kubantu abanomsebenzi wezintso ongasebenzi kakuhle. Ukuba uzive ungonwabanga ngexesha okanye emva kovavanyo lwe-MRI, yazisa abasebenzi bezonyango, sela amanzi amaninzi, kwaye uphumle imizuzu engama-30 ngaphambi kokuba uhambe.
I-LnkMedIgxile ekuphuhlisweni, ekwenziweni nasekuvelisweni kwee-injetcors ze-high pressure contrast agent kunye nezixhobo zonyango ezifanelekileyo kwii-injectors ezinkulu ezaziwayo. Ukuza kuthi ga ngoku, i-LnkMed iqalise iimveliso ezili-10 ezinamalungelo obunini bobuchwephesha azimeleyo ngokupheleleyo kwimarike, kuqukaI-CT single injector, I-CT head injector ezimbini, I-DSA injector, Inaliti ye-MRIkunye nesirinji yombhobho ehambelanayo esebenza iiyure ezili-12 kunye nezinye iimveliso zasekhaya ezikumgangatho ophezulu, iyonkeIsalathisi sokusebenza sifikelele kwinqanaba lehlabathi leklasi yokuqala, kwaye iimveliso zithengisiwe eOstreliya, eThailand, eBrazil, nakwamanye amazwe, eZimbabwe nakwamanye amazwe amaninzi.I-LnkMed iza kuqhubeka nokubonelela ngeemveliso ezikumgangatho ophezulu kwicandelo lemifanekiso yezonyango, kwaye izame ukuphucula umgangatho womfanekiso kunye nempilo yesigulana. Umbuzo wakho wamkelekile.
Ixesha leposi: Matshi-22-2024
