Yintoni MRI: Umgaqo vuavanyisi noxilongo namakhono

Xa amayeza, isebenzisa inani elikhulu izifundo zomculo, ezinye zazo, enyanisweni, jikelele, ukuze nokuxilonga ezimbi ezininzi ukusuka kumaqela ahlukeneyo nokubekwa kwezifo zabantu. Ngoko ke matshini MRI evumela ukuba nomfanekiso ancedisana zomzimba ngaphandle kokusebenzisa sesichengeni sosasazeko lwemitha. Noko ke, oko kukuthi MRI kunye nendlela umzobo isakhiwo yesixhobo, umgaqo yayo yokusebenza, uyazi kukho inani elincinane labantu. Kodwa ke ngoko okungazi, akukuthinteli uninzi iziguli iinkqubo zokuxilonga ezinjalo.

Ubume izixhobo MRI nangemigaqo yokusebenza

Izixhobo zokwenza MRI umazibuthe enkulu. Umzimba womntu na kwisisu wayo, nto leyo ukhuselwe istili yeplastiki. Ngaphezu koko, le sifundo olungangqinelwa esiqwini uhlaselo iimeko lwezidumbu, ngenxa yokuba izikhohlakali zingamoyiki ionize izinto eziqulathwe kule kubume emzimbeni isiseko. Abanamandla zibuthe isixhobo enza ngqo kwi protons. Ezi amasuntswana bamele ion yehayidrojini eziyinxalenye yamanzi - iyeza iqhelekileyo emzimbeni womntu.

Umxholo amanzi emzimbeni ezahlukeneyo umzimba womntu iiyantlukwano zalo. Yeyona imali lincinane ngethambo kunye zomzimba nokuqina, kanti izihlunu kunye namanqatha babe izinga ulwelo. Ezineempawu ezifanayo kunye isicwili sobuchopho ezahlukeneyo kunye parenchyma ngamalungu angaphakathi. Ngenxa yoko, ngenxa umahluko kwikhontenti amanzi iphumelele imida zokwakha phakathi kwinyama ezingafani kumfanekiso virtual eveliswe emva kokuba uphawu kwi computer.

Noko ke, oko kukuthi MRI, ngokusekelwe umgaqo ebonakalayo kule yunithi isebenza? Olu hlobo umahluko ngesakhiwo omzimba wabantu ndaqonda ngenxa indlela ifuthe of iimolekyuli zamanzi. Zimele dipoles kwi lo mhlaba otsalayo nawamkela uhlobo oluthile yokuqhelaniswa nezifundo. MRI ngokwakhe ukusebenza umjikelo kukudala Imagnethi yomhlaba kunye nezimo kwilungiselelo kakuhle iimolekyuli zamanzi, uze emva koko ecaleni lo mhlaba otsalayo iqale wave kunomathotholo ukuba ebangela imolekyuli ukuya intlokoma ukuba ziyanyuswa ngenxa livakale ziyenzeka.

MRI of entloko, uphando ubuchopho

Xa uxilongo kwezifo kunye amanxeba sisiba mandundu le MRI ingqondo kubaluleke kakhulu kuba kuvumela iqondo eliphezulu lilonke ukujonga ngqo inkqubo emzimbeni, isixa umonakalo okanye neoplasm ukuchonga inqanawa ibekwe apho ihlwili. Kulo mzekelo, indlela engundoqo ekuqhutyweni kwesi sifundo na indlela ukufumanisa kuba sisiseko umfanekiso ukuba kuvele umbuzo othi "yintoni?" Kwaye impendulo kuyo. Loo MRI ethathwe emva kokuxilongwa pre-esichengeni, unako ukuphucula isiqulatho iinkcukacha zesifundo, kuba ugqirha sele wacebisa ukuba uza kufuna ngokukhethekileyo. Ngaphezu koko, phakathi ezimbi ekujoliswe zokuva MRI ingqondo, ithumba langoku, kubuhlungu, isifo esosulelayo. Kwakhona, MRI unako zokufumanis iingxaki ngexesha kuphuhliso zifo zikhankanywe apha ngasentla ezivelayo.

Yintoni MRI yomqolo

MRI yomqolo kunye umnqonqo - yinto ndlela izifundo zomculo, nto leyo ibandakanya nokuthelekelela kwezakhiwo yokwakheka kwinqanaba elithile. izixhobo Modern ukuvumela ukuba ezahlukeneyo izilayi yenyani yamalungu omzimba ngamnye. Oku kwenza kube lula ukuba ukuvavanya isakhiwo yokwakheka lomsele spinal, imingxuma intervertebral kwiindawo ezahlukeneyo. Uphononongo kwakhona iquka umnqonqo, kuba oku kuvumela MRI ukubona ubume bayo, ngokuba inductance lo mhlaba otsalayo kwi izixhobo Ikhoyili malunga 1.5 Tesla. Ukusebenzisa umfanekiso kunceda ukuchonga ubukho ithumba uluhlu kwi meninges okanye inyama symptomatology yayo ehambisana.