Imagnetic resonance imaging: yintoni, yenzelwa ntoni kwaye yenziwa njani

Umxholo

• Yenzelwe ntoni
• Kwenziwa njani
• Iindidi zeMRI

Imagnetic resonance imaging (MRI), ekwabizwa ngokuba yi-nuclear magnetic imaging imaging (i-NMR), luvavanyo lomfanekiso olunakho ukubonisa ulwakhiwo lwangaphakathi lwamalungu ngenkcazo, kubalulekile ukuba uchaze iingxaki zempilo ezahlukeneyo, ezinje nge-aneurysms, tumors, changes in amalungu okanye olunye ukonzakala kumalungu angaphakathi.

Ukwenza uviwo, kusetyenziswa umatshini omkhulu, owenza imifanekiso ephezulu yezitho zangaphakathi ngokusetyenziswa kwemagnethi yomhlaba, ebangela ukuba iimolekyuli zomzimba ziphazamiseke, zibanjwe sisixhobo kwaye zigqithiselwe kwikhompyuter. Uvavanyo luhlala malunga nemizuzu eli-15 ukuya kwengama-30 kwaye, ngesiqhelo, akukho lungiselelo luyimfuneko, nangona kunokuba yimfuneko ukusebenzisa umahluko, kwezinye iimeko, ngenaliti yonyango ngomthambo.

Umatshini weMRI

Imagnetic resonance umfanekiso wokakayi

Yenzelwe ntoni

Ukucatshulwa kwemifanekiso ngemagneti kubonisiwe kwezi meko zilandelayo:

• Chonga izifo zemithambo-luvo, ezinje nge-Alzheimer's, ithumba lobuchopho, sclerosis okanye stroke, umzekelo;
• Jonga ukudumba okanye usulelo kwingqondo, kwimithambo-luvo okanye kumalungu;
• Xilonga ukulimala kwemisipha, njenge-tendonitis, ukulimala kwe-ligament, ii-cysts, ezifana ne-Tarlov's cyst okanye iidiski ze-herniated, umzekelo;
• Ukuchonga ubunzima okanye amathumba kumalungu omzimba;
• Jonga utshintsho kwimithambo yegazi, efana nee-aneurysms okanye amahlwili.

Kuyimfuneko ukuthatha amanyathelo okhuseleko ngaphambi kokwenza olu vavanyo, kuba akunakubakho naluphi na uhlobo lwezinto ezisinyithi kufutshane nomazibuthe wesixhobo, ezinje ngezikhonkwane zeenwele, iiglasi okanye iinkcukacha zempahla, ukuthintela iingozi. Ngesi sizathu sinye, olu vavanyo luyaphikiswa kubantu abanalo naluphi na uhlobo lweprosthesis, i-pacemaker okanye izikhonkwane zentsimbi ezifakwe emzimbeni.

Ukongeza kumgangatho olungileyo wemifanekiso eyenziwe yimifanekiso yokujonga ngemagneti, enye inzuzo kukusetyenziswa kwemitha ye-ionizing ukufumana iziphumo, ngokwahlukileyo kwikhompyuter ye-tomography. Qonda ukuba yeyantoni na xa kufuneka i-CT scan.

Kwenziwa njani

Ukubonwa kwemagneti yomhlaba kuhlala phakathi kwemizuzu eli-15 ukuya kwengama-30, kwaye kunokuhlala ukuya kuthi ga kwiiyure ezi-2 kuxhomekeke kwindawo eza kuvavanywa. Ngenxa yoku, kufuneka uhlale ngaphakathi kwesixhobo esikhupha amandla kazibuthe, kwaye ayonzakalisi, nangona kunjalo, kubaluleke kakhulu ukuba ungashukumi ngeli xesha, kuba nayiphi na intshukumo inokutshintsha umgangatho woviwo.

Kubantu abangenako ukuma ngxi, njengabantwana, abantu abane-claustrophobia, i-dementia okanye i-schizophrenia, umzekelo, kunokuba yimfuneko ukwenza uvavanyo nge-sedation ukuze ulale, kungenjalo uvavanyo alunakusebenza.

Ukongeza, kwezinye iimeko, kunokuba yimfuneko ukufaka umahluko kumthambo wesigulana, njengeGallium, njengoko iyindlela yokubangela inkcazo emikhulu yemifanekiso, ikakhulu ukubona amalungu okanye imithambo yegazi.

Iindidi zeMRI

Iindidi ze-MRIs zixhomekeke kwindawo echaphazelekayo, eyona ixhaphakileyo ebandakanya:

• Ukubonwa kwemagnetic resonance ye-pelvis, isisu okanye isifuba: isebenza ukufumanisa amathumba okanye ubunzima kumalungu afana nesibeleko, amathumbu, amaqanda, iprostate, isinyi, ipancreas, okanye intliziyo, umzekelo;
• Imagnetic resonance imaging yokakayi: Unceda ukuvavanya ukungalunganga kobuchopho, ukopha ngaphakathi, i-cerebral thrombosis, izicubu zobuchopho kunye nolunye utshintsho okanye usulelo kwingqondo okanye kwimithambo yayo;
• Umqolo we-MRI: Unceda ukufumanisa iingxaki kumqolo nakumqolo, njengamathumba, ukubala, i-hernias okanye iziqwengana zethambo, emva kokuqhekeka- Jonga indlela yokuchonga iarthrosis emqolo, umzekelo;
• I-MRI yamalungu, njengegxa, idolo okanye iqatha: isebenza ukuvavanya izicubu ezithambileyo ngaphakathi kwendibaniselwano, ezinje nge-bursa, tendon kunye ligaments.

Ukubonwa kwemagnetic resonance, ke, luvavanyo olugqwesileyo lokujonga amalungu athambileyo omzimba, nangona kunjalo, akuqhelekanga kuboniswa ukuba kugcinwa izilonda kwimimandla engqingqwa, njengamathambo, ekubeni, kwezi meko, iimviwo ezinje nge-x-ray okanye i-tomography ekhompyutheni iboniswe ngakumbi., umzekelo.