Inhliziyo MRI

I-heart magnetic resonance imaging iyindlela yokucinga esebenzisa ozibuthe abanamandla namagagasi omsakazo ukudala izithombe zenhliziyo. Ayisebenzisi imisebe (x-ray).

Imifanekiso eyodwa yamagnetic resonance imaging (MRI) ibizwa ngokuthi izingcezu. Izithombe zingagcinwa kukhompyutha noma ziphrintwe kwifilimu. Isivivinyo esisodwa sikhiqiza inqwaba noma kwesinye isikhathi amakhulu ezithombe.

Ukuhlolwa kungenziwa njengengxenye yesifuba se-MRI.

Ungacelwa ukuthi ugqoke ingubo yasesibhedlela noma okokugqoka ngaphandle kokufakwa izinsimbi (okufana namabhulukwe ajulile nesikibha). Ezinye izinhlobo zensimbi zingadala izithombe ezifiphele noma zikhangwe kumazibuthe onamandla.

Uzolala etafuleni elincane, elingena kushubhu enkulu efana nomhubhe.

Ezinye izivivinyo zidinga udayi okhethekile (umehluko). Idayi ivame ukunikezwa ngaphambi kokuhlolwa ngomthambo (IV) osesandleni sakho noma engalweni. Idayi isiza udokotela we-radiologist ukuthi abone izindawo ezithile ngokucace kakhudlwana. Lokhu kwehlukile kudayi osetshenziselwa i-CT scan.

Ngesikhathi seMRI, umuntu osebenzisa umshini uzokubuka ukwelinye igumbi. Ukuhlolwa kuvame ukuthatha imizuzu engama-30 kuye kwangama-60 kepha kungathatha isikhathi eside.

Ungacelwa ukuthi ungadli noma uphuze noma yini amahora amane kuya kwayisithupha ngaphambi kokuskena.

Tshela umhlinzeki wakho wezokunakekelwa kwezempilo uma wesaba izindawo eziseduze (une-claustrophobia). Unganikezwa umuthi ozokusiza uzizwe ulele futhi ungakhathazeki kakhulu, noma umhlinzeki wakho angaphakamisa iMRI "evulekile", lapho umshini ungasondelene nomzimba.

Ngaphambi kokuhlolwa, tshela umhlinzeki wakho uma ngabe:

• Iziqeshana ze-aneurysm zobuchopho
• Izinhlobo ezithile zamavalvu enhliziyo yokufakelwa
• Inhliziyo defibrillator noma i-pacemaker
• Ukufakwa kwendlebe kwangaphakathi (cochlear)
• Isifo sezinso noma i-dialysis (ungahle ungakwazi ukuthola umehluko)
• Amalunga wokufakelwa asanda kufakwa
• Izinhlobo ezithile ze-vascular stents
• Kusetshenziswe ngensimbi yensimbi esikhathini esedlule (ungadinga ukuhlolwa ukuhlola izingcezu zensimbi emehlweni akho)

Ngoba i-MRI iqukethe odonsa abanamandla, izinto zensimbi azivunyelwe ukungena egumbini elinesithwebuli se-MRI:

• Amapeni, okhiye bokuphaka, nezibuko zamehlo zingandiza zinqamule igumbi.
• Izinto ezinjengobucwebe, amawashi, amakhadi esikweletu nezinsiza-kuzwa zingalimala.
• Izikhonkwane, okokufaka izinwele, uziphu wensimbi, nezinto ezifanayo zensimbi kungasonta izithombe.
• Umsebenzi wamazinyo osusekayo kufanele ukhishwe ngaphambi nje kokuskena.

Ukuhlolwa kwenhliziyo kwe-MRI akubangeli buhlungu. Abanye abantu bangakhathazeka lapho bengaphakathi kwesithwebuli. Uma kunzima ukulala unganyakazi noma ukhathazeke kakhulu, unganikezwa umuthi wokuphumula. Ukunyakaza okuningi kungafiphaza izithombe ze-MRI futhi kudale amaphutha.

Itafula lingaba nzima noma libande, kepha ungacela ingubo noma umcamelo. Umshini ukhiqiza imisindo emikhulu yokuqhuma nokuhayiza lapho uvuliwe. Unganikezwa ama-plugs endlebe ukusiza ukunciphisa umsindo.

I-intercom kuskena ikuvumela ukuthi ukhulume nomuntu owenza isivivinyo nganoma yisiphi isikhathi. Ezinye izikena ze-MRI zinamathelevishini namahedfoni akhethekile okusiza ukudlulisa isikhathi.

Asikho isikhathi sokutakula, ngaphandle uma kunesidingo sokududuza. (Uzodinga umuntu ozokushayela ekhaya uma kunikezwa umuthi.) Ngemuva kokuhlolwa kwe-MRI, ungaqala kabusha ukudla okuvamile, umsebenzi wakho, kanye nemithi, ngaphandle kokuthi umhlinzeki wakho akutshele ngenye indlela.

I-MRI inikeza izithombe eziningiliziwe zenhliziyo nemithambo yegazi ekubukeni okuningi. Imvamisa, iyasetshenziswa lapho kudingeka ulwazi oluthe xaxa ngemuva kokuthola i-echocardiogram noma i-CT CT scan. I-MRI inembe kakhulu kune-CT scan noma okunye ukuhlolwa kwezimo ezithile, kepha ayinembile kangako kwabanye.

I-Heart MRI ingasetshenziselwa ukuhlola noma ukuxilonga:

• Ukulimala kwemisipha yenhliziyo ngemuva kokuhlaselwa yinhliziyo
• Ukukhubazeka kokuzalwa kwenhliziyo
• Izimila zenhliziyo nokukhula
• Ukwenza buthakathaka noma ezinye izinkinga ngemisipha yenhliziyo
• Izimpawu zokwehluleka kwenhliziyo

Imiphumela engajwayelekile ingabangelwa izinto eziningi, kufaka phakathi:

• Izinkinga ze-valve yenhliziyo
• Uketshezi olusembozweni olufana nesaka oluzungeze inhliziyo (i-pericardial effusion)
• Isimila semithambo yegazi noma esizungeze inhliziyo
• I-atrial myxoma noma okunye ukukhula noma isimila enhliziyweni
• Isifo senhliziyo esizalwa naso (inkinga yenhliziyo ozalwa unayo)
• Ukulimala noma ukufa kwemisipha yenhliziyo, kubonakala ngemuva kokuhlaselwa yinhliziyo
• Ukuvuvukala kwemisipha yenhliziyo
• Ukungena kwemisipha yenhliziyo ngezinto ezingavamile
• Ukubuthaka kwemisipha yenhliziyo, engadalwa yi-sarcoidosis noma i-amyloidosis

Ayikho imisebe ehilelekile kwi-MRI. Amandla kazibuthe namagagasi omsakazo asetshenziswe ngesikhathi sokuskena awakhonjiswanga ukudala imiphumela emibi.

Ukungezwani komzimba nodayi osetshenziswe ngesikhathi sokuhlolwa akuvamile. Uhlobo oluvame kakhulu lokuqhathanisa (udayi) olusetshenzisiwe yi-gadolinium. Kuphephe kakhulu. Umuntu osebenzisa umshini uzoqapha ukushaya kwenhliziyo yakho nokuphefumula kwakho lapho kudingeka. Izinkinga ezingavamile zingenzeka kubantu abanezinkinga ezinzima zezinso.

Abantu baye balinyazwa emishinini ye-MRI lapho bengasusi izinto zensimbi ezingutsheni zabo noma lapho izinto zensimbi zishiywa egumbini ngabanye.

I-MRI ivame ukunganconywa ngokulimala okubuhlungu. Imishini yokudonsa neyokusekela impilo ayikwazi ukungena ngokuphepha endaweni yesithwebuli.

Ama-MRIs angabiza, kuthathe isikhathi eside ukuwenza, futhi azwela ngokuhamba.

Ukucabanga kwe-Magnetic resonance - inhliziyo; Imagnetic resonance imaging - inhliziyo; Umsindo kazibuthe wenuzi - inhliziyo; I-NMR - inhliziyo; I-MRI yenhliziyo; I-Cardiomyopathy - i-MRI; Ukwehluleka kwenhliziyo - i-MRI; Isifo senhliziyo esizelwe - iMRI

• Inhliziyo - isigaba phakathi nendawo
• Inhliziyo - ukubuka kwangaphambili
• Ukuhlolwa kwe-MRI

IKramer CM, iBeller GA, iHagspiel KD. Ukucabanga okungavumelekile kwenhliziyo. Ku: IGoldman L, iSchafer AI, ama-eds. Imithi yeGoldman-Cecil. Umhla ka-26. IPhiladelphia, PA: Elsevier; 2020: isahluko 50.

I-Kwong RY. Ukucabanga kwe-resonance kazibuthe yenhliziyo. Ku: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, ama-eds. Isifo Senhliziyo SikaBraunwald: Incwadi Yemithi Yezinhliziyo Nemithambo. Umhla ka-11. IPhiladelphia, PA: Elsevier; 2019: isahluko 17.