Kuyini i-MRI: isimiso isithwebuli kanye kusebenta kwahulumende amakhono

Kwezokwelapha, lisebenzisa inani elikhulu izifundo wezinsimbi, ezinye zazo, eqinisweni, jikelele, ezingaba ukuxilonga pathologies abaningi abavela emaqenjini ehlukene ngezigaba izifo wobuntu. Ngakho kuyinto umshini MRI evumela ukuba ngeso lengqondo izicubu emzimbeni ngaphandle kokusebenzisa yokuchayeka emisebeni. Nokho, okungukuthi i-MRI nokuthi umdwebo isakhiwo zedivayisi, ukusebenza yayo isimiso, uyazi inombolo encane yabantu. Kodwa lokhu ukungazi akuvimbeli iningi iziguli othola lezo zinqubo zokuxilonga.

Sakhiwo apharathasi MRI kanye Umgomo we operation

Iinsetjenziswa zokukhwela enifeza MRI Idonsa ezinkulu. Umzimba womuntu e ingaphakathi yayo, okuyinto ivikelwe bezinhlamvu plastic. Ngaphezu kwalokho, kulolu cwaningo akuveli kwezicubu ukuqala izimo zokucabanga okubangelwa isifo, ngoba abazi ionize izinto eziqukethwe isakhiwo isizinda umzimba. I eqinile kazibuthe idivayisi izenzo ngqo proton. Lezi zinhlayiya ukumela i-hydrogen ion ayingxenye amanzi - ketshezi ezivamile emzimbeni womuntu.

Okuqukethwe amanzi emzimbeni ezihlukeneko zomzimba womuntu umehluko yayo. Kuyinto lemali ezincane kunazo zonke ezenziwe ngethambo nezenziwe ezicutshini, kuyilapho imisipha namafutha abe lokuhlushwa ephakeme okusamanzi. Izici ezifanayo kanye ezahlukene ubuchopho izicubu kanye parenchyma yezitho zangaphakathi. Ngakho, ngenxa umehluko okuqukethwe amanzi izuzwe ukwakhiwa kwemingcele phakathi kwezicubu ezingafani esithombeni virtual elakhiwe emva isignali kukhompyutha.

Nokho, okungukuthi i-MRI, ngesisekelo isimiso somzimba yalolu phiko usebenza? Lolu hlobo yokuzihlukanisa kwamangqamuzana ngokwemisebenzi yawo isakhiwo umzimba womuntu yaqaphela ngenxa indlela umthelela zishintshe amanzi. Zimelele dipoles e kazibuthe okuyinto ukwamukela uhlobo oluthile orientation. MRI umjikelezo yena usebenza ukudala Amandla kazibuthe kanye netimo tekutsi lungiselelo eliphumelelayo nelihlelekile lingobunye zishintshe kwamanzi, abese ekhishwa kanye kazibuthe ithoma wave emsakazweni ukuthi kubangela i-molecule ye ukuba kunyakaza ukuthi iyakhula ngenxa resonance okwenzeka.

MRI ikhanda, ucwaningo ingqondo

Ngo izifo kanye izilonda esiwohlozayo we-MRI ubuchopho ke kubaluleke kakhulu ngoba ivumela ngezinga eliphezulu okungenzeka ukucacisa ngqo kwasendaweni inqubo, inani umonakalo noma neoplasm ukuhlonza isitsha lapho ihlule itholakala. Kulokhu, indlela eyinhloko ekuqhubeni lolu cwaningo akuyona indlela ukuxilonga ngoba ngesisekelo imaging is posing umbuzo "yini?" Futhi impendulo kuyona. i-MRI okunjalo ezithathwe emuva uphethwe pre bavezwe, kungaba ngcono okuqukethwe Imininingwane cwaningo, ngoba udokotela isivele wasikisela ukuthi yena ngeke ngokukhethekile abafuna. Ngaphezu kwalokho, phakathi target pathologies ezingaba ukubona ubuchopho MRI, isimila samanje, kuyashaqisa, nezifo ezithelelwanayo angase azithole. Futhi, i-MRI uyakwazi ekuxilongweni nezinkinga ezingase ziphakame phakathi ukuthuthukiswa izifo ngenhla.

Kuyini MRI yomgogodla

MRI yomgogodla nomgogodla - indlela izifundo wezinsimbi, okubandakanya ngeso kwezakhiwo yokwakheka ezingeni elithile. amadivaysi Modern uvumele ezihlukahlukene tincetu olubonakalayo ngabanye kuzo zonke izingxenye zomzimba. Lokhu kwenza kube nokwenzeka ukuhlola isakhiwo yokwakheka umsele umgogodla, izimbobo intervertebral ezindaweni ezahlukene. Lolu cwaningo luphinde kuhlanganisa emgogodleni, ngoba lokhu kuvumela i-MRI ukubona oyiyo, ngoba lo inductance we kazibuthe e apharathasi ikhoyili cishe 1.5 Tesla. Ukusebenzisa imaging kusiza ukuhlonza khona isimila kumiswa ku meninges noma okuhambisanayo izicubu symptomatology yayo.