Ubuchwepheshe be-Magnetic resonance imaging (MRI) bubalulekile ekunikezeni indlela engahlanyisi ukuze kukhiqizwe izithombe ezinembile zangaphakathi emzimbeni womuntu.Nokho, ubuchwepheshe abunazo izinselele, ikakhulukazi mayelana nokuphepha nokusebenza ngempumelelo kwenqubo.Esinye sezici ezibaluleke kakhulu zokuvikeleka kwe-MRI ukuvikela okufanele, okusebenzisa izinto ezifanaucwecwe lwethusiukuvimbela ukuphazamiseka okuvela emithonjeni yangaphandle.Kulesi sihloko, sixoxa ngokuthi kungani ithusi lisetshenziswa ku-MRI kanye nezinzuzo zayo njengento evikelayo.
I-Copper iyinto efanelekile yokuvikela i-MRI ngezizathu eziningi.Okokuqala, i-conductivity yayo ephezulu ivumela ukuthi ibambe ngokuphumelelayo amasiginali kagesi, ivikele amadivaysi kumsindo wangaphandle.Okwesibili, ithusi liyathandeka futhi liyathandeka, ngakho-ke lingenziwa kalula libe ngamashidi noma ama-foil angasetshenziswa ezindongeni, ophahleni kanye naphansi kwamakamelo e-MRI.Okwesithathu, ithusi aliwona uzibuthe, okusho ukuthi aliphazamisi inkambu kazibuthe ye-MRI, okuyenza ibe yinto ekahle yokuvikela i-MRI.
Enye inzuzo ephawulekayo yeucwecwe lwethusingoba ukuvikela i-MRI yikhono layo lokuhlinzeka ngesivikelo se-SF (radio frequency).Ukuvikela i-SF kusiza ukumisa amagagasi kazibuthe akhishwa amakhoyili efrikhwensi yomsakazo we-MRI ukuthi ahambe esakhiweni sonke, angaphazamisa ezinye izinto zikagesi noma abeke engcupheni impilo yabantu endaweni ezungezile.Ukuze uqonde lokhu, umphumela jikelele wefrikhwensi yomsakazo emzimbeni kufanele ucatshangelwe.Nakuba i-MRI isebenzisa imisebe engeyona i-ionizing ebhekwa njengephephile, ukuchayeka isikhathi eside ezinkambini zama-radiofrequency kungase kube nemiphumela emibi yezinto eziphilayo.Kungakhoucwecwe lwethusikufanele isetshenziselwe ukuhlinzeka ngokuvikeleka kwe-SF okusebenzayo nokuphumelelayo.
Kafushane, ucwecwe lwethusi luyinto ebalulekile yokuvikela i-MRI futhi lunikeza izinzuzo ezimbalwa.Iyaqhuba, iyathandeka, futhi ayinazibuthe, iyenza ilungele ukumunca amasignali kazibuthe ngaphandle kokuphazamisa izinkambu ze-MRI.Ngaphezu kwalokho, ucwecwe lwethusi luhlinzeka ngokuvikela okusebenzayo kwe-SF okusiza ukuvimbela amaza kagesi ukuthi angasakazeki esakhiweni sonke, kuncishiswe ukuphazamiseka kwemishini kagesi kanye nokunciphisa ubungozi bemiphumela emibi yezempilo ngenxa yokuchayeka kwe-RF isikhathi eside.Izikhungo ze-MRI kumele zibe nezinga eliphezuluucwecwe lwethusiukuvikela ukuqinisekisa ukunakekelwa okufanele kwesiguli kanye nemiphumela ephephile nethembekile yokuhlonza izithombe.
Isikhathi sokuthumela: Apr-25-2023