Iskena seMRI yamagxa

Isikeni seMRI (imaging resonance imaging) yovavanyo lokuhlola lusebenzisa amandla avela kwiimagnethi ezinamandla kunye nokwenza imifanekiso yendawo egxalabeni.

Ayisebenzisi i-radiation (x-ray).

Imifanekiso enye ye-MRI ibizwa ngokuba zizilayi. Imifanekiso inokugcinwa kwikhompyuter okanye iprintwe kwifilimu. Olunye uvavanyo luvelisa uninzi okanye ngamanye amaxesha amakhulu emifanekiso.

Uvavanyo olunxulumene noko lubandakanya:

• Ingalo yeMRI
• IMRI

Unokucelwa ukuba unxibe ilokhwe yasesibhedlele okanye impahla ngaphandle kweentsimbi okanye iziphu (ezinje ngezikipa kunye nesikipa). Qiniseka ukuba ukhulula iwotshi yakho, ubucwebe kunye nesipaji. Ezinye iintlobo zentsimbi zinokubangela imifanekiso engacacanga.

Uya kulala etafileni emxinwa, ethi ityibilike ityhubhu enkulu efana netonela.

Ezinye iimviwo zifuna idayi ekhethekileyo (umahluko). Idayi ihlala inikwa ngaphambi kovavanyo kusetyenziswa umthambo (IV) esandleni okanye kwingalo yakho. Idayi nayo inokufakwa egxalabeni. Idayi inceda i-radiologist ibone iindawo ezithile ngokucacileyo.

Ngexesha le-MRI, umntu osebenza kumatshini uya kukujonga ukwelinye igumbi. Uvavanyo luhlala luhlala kwimizuzu engama-30 ukuya kwengama-60, kodwa kunokuthatha ixesha elide.

Unokucelwa ukuba ungatyi okanye usele nantoni na iiyure ezi-4 ukuya kwezi-6 ngaphambi kokuskena.

Tshela ugqirha wakho ukuba uyoyika iindawo ezikufutshane (une-claustrophobia). Unokunikwa iyeza lokukunceda uzive usozela kwaye ungakhathazeki kangako (ukuthomalalisa). Ugqirha wakho usenokucebisa nge-MRI "evulekileyo", apho umatshini ungekho kufutshane nomzimba.

Ngaphambi kovavanyo, xelela umboneleli wakho wezempilo ukuba unayo:

• Iiklip ze-aneurysm zengqondo
• Iindidi ezithile zezivalo zentliziyo ezingezizo
• Intliziyo defibrillator okanye ipacemaker
• Ukufakwa kwendlebe ngaphakathi (cochlear)
• Isifo sezintso okanye i-dialysis (ngekhe ukwazi ukufumana umahluko)
• Kutshanje kubekwe amalungu anganyanisekanga
• Iindidi ezithile ze-vascular stents
• Ukusebenza ngesinyithi kwiphepha elidlulileyo (unokufuna iimvavanyo ukujonga iziqwenga zentsimbi emehlweni akho)

Ngenxa yokuba i-MRI iqulethe iimagnethi ezinamandla, izinto zesinyithi azivumelekanga kwigumbi elinesikena se-MRI:

• Iipeni, iipokotho, kunye neiglasi zamehlo zingabhabha ngaphaya kwegumbi.
• Izinto ezinje ngezacholo, iiwotshi, amakhadi etyala kunye nezinto zokuva zinokonakaliswa.
• Izikhonkwane, izikhonkwane zeenwele, iiziphu zentsimbi, kunye nezinto ezifanayo zesinyithi zinokuyigqwetha imifanekiso.
• Umsebenzi osuswayo wamazinyo kufuneka ukhutshwe ngaphambi nje kokuskena.

Uvavanyo lwe-MRI alubangeli zintlungu. Kuya kufuneka uxoke. Ukuhamba kakhulu kunokubangela iimpazamo.

Itafile inokuba nzima okanye ibanda, kodwa ungacela ingubo okanye umqamelo. Umatshini uvelisa ingxolo enkulu kunye nengxolo xa kuvuliwe. Unganxiba iiplagi zendlebe ukunceda ukunciphisa ingxolo.

I-intercom egumbini ikuvumela ukuba uthethe nomntu nangaliphi na ixesha. Ezinye ii-MRIs zinomabonakude kunye nee-headphone ezikhethekileyo zokukunceda ukudlula ixesha.

Akukho xesha lokufumana kwakhona, ngaphandle kokuba ufumene iyeza lokuphumla. Emva kokuvavanywa kweMRI, ungabuyela kwindlela otya ngayo yesiqhelo, umsebenzi kunye namayeza.

I-MRI iluncedo ekuchongeni nasekuvavanyeni ukonzakala kwezemidlalo. Inokubonelela ngemifanekiso ecacileyo yeendawo zegxa (ezinje ngezicwili ezithambileyo) ekunzima ukuzibona ngokucacileyo kwizikena ze-CT.

Umboneleli wakho unoku-odola olu vavanyo ukuba unayo:

• Ubunzima obunokuviwa ngexesha lovavanyo lomzimba
• Ukufumana okungaqhelekanga kwi-x-ray okanye kwi-scan scan
• Iintlungu zamahlombe kunye nomkhuhlane
• Ukuncipha kokunyuswa kwegxalaba
• Ulwakhiwo lwamanzi kwigxalaba
• Ubomvu okanye ukudumba kwegxalaba
• Ukungazinzi kwamagxa
• Ubuthathaka bamagxa
• Intlungu yamagxa kunye nembali yomhlaza
• Iintlungu zamahlombe ezingangcono kunyango

Iziphumo eziqhelekileyo zithetha ukuba akukho ngxaki zibonwe egxalabeni lakho nakwizicubu ezijikelezileyo kwimifanekiso.

Ezinye zezinto ezinokubangela iziphumo ezingaqhelekanga zinokuba zezi:

• Utshintsho olwenzakalayo ngenxa yobudala
• Ithumba
• Usulelo lwe-Bone (osteomyelitis)
• Ithambo elaphukileyo okanye elaphukileyo
• Bursitis kwindawo egxalabeni
• I-biceps ikhala
• I-Osteonecrosis engaqhelekanga (i-vascular necrosis)
• Ikhafu yerotator ikrazukile
• Ikhafu yetotinitis yerotator
• Ukuvuvukala kwamagxa (igxalaba elinomkhenkce)
• Ithumba (kubandakanya umhlaza)
• Ukulila kweLabral
• Umqala egxalabeni

Olu luhlu alubandakanyi zonke iingxaki ezinokubakho. Thetha nomboneleli wakho nayiphi na imibuzo kunye neenkxalabo.

I-MRI ayiqulathanga imitha. Akukho ziphumo zibi zivela kumazibuthe omazantsi kunye namaza erediyo axeliweyo.

Kukhuselekile nokuba kwenziwe iMRI ngexesha lokukhulelwa. Akukho ziphumo bezingalindelekanga okanye iingxaki eziqinisekisiweyo.

Uhlobo oluqhelekileyo lokuchasana (idayi) elisetyenzisiweyo yi-gadolinium. Kukhuselekile kakhulu. Ukuphendula ngokuchaseneyo nento leyo kunqabile ukwenzeka. Nangona kunjalo, i-gadolinium inokuba yingozi kubantu abaneengxaki zezintso ezifuna i-dialysis. Ukuba unengxaki yezintso, nceda uxelele umboneleli wakho phambi kovavanyo.

Iimpawu zemagneti ezomeleleyo ezenziwe ngexesha le-MRI zinokubangela ukuba iintliziyo zihambe kunye nezinye izinto ezingafakwanga. Inokubangela ukuba iqhekeza lesinyithi ngaphakathi emzimbeni wakho lihambe okanye litshintshe. Nceda uqiniseke ukuba awuzisi nantoni equlathe isinyithi kwigumbi lokuskena, inokuba yiprojekhthi kwaye ibe yingozi kuwe.

Uvavanyo olunokwenziwa endaweni ye-MRI yamagxa lubandakanya:

• I-CT ehlombe
• I-X-ray yegxalaba

I-CT scan inokukhethwa kwezinye iimeko zongxamiseko, kuba iyakhawuleza kwaye ihlala ifumaneka kwigumbi likaxakeka.

I-MRI - igxalaba; Imagnetic resonance imaging- igxalaba

• Ukuziqhelanisa nekhafu yerotator
• Ikhomishini yerotator - ukuzikhathalela
• Ukutshintshwa kwamagxa - ukukhutshwa
• Utyando lwamagxa - ukukhutshwa
• Sebenzisa igxalaba lakho emva kotyando olwenziwe ngokutsha

UAnderson MW, uFox MG. I-MRI yegxalaba. Ku: Anderson MW, Fox MG, ii-eds. I-anatomy yecandelo le-MRI kunye ne-CT. Ngomhla we-4. IPhiladelphia, PA: Elsevier; I-2017: isahluko 2.

IHanypsiak B, DeLong JM, Lowe WR. Iingxaki zeScapulothoracic. Ku: Miller MD, Thompson SR, ii-eds. UDeLee kunye neDrez's Orthopedic Sports Medicine. Ngomhla we-4. IPhiladelphia, PA: Elsevier Saunders; 2015: isahluko 57.

Isazisi sikaWilkinson, amangcwaba MJ. Ukujonga ngemagnetic resonance. Ku: UAdam A, uDixon AK, uGillard JH, uSchaefer-Prokop CM, ii-eds. Ingqolowa kunye neAllison's Diagnostic Radiology. Umhla wesi-6. IPhiladelphia, PA: Elsevier Churchill Livingstone; 2015: isahluko 5.