Yini i-Magnetic Resonance Elastography? Injongo, Amazinga/Inqubo & Imiphumela

I-Magnetic resonance elastography (MRE) iyisivivinyo sokuthwebula esikhethekile esilinganisa ukuthi izitho zakho ziqinile noma zithambile kangakanani, ikakhulukazi isibindi sakho. Cabanga ngayo njengendlela enobumnene yokuthi "uzizwe" izitho zakho ngaphandle, okufana nendlela udokotela angase acindezele ngayo esiswini sakho ngesikhathi sokuhlolwa komzimba, kodwa kunembe kakhulu futhi kunemininingwane.

Lolu vivinyo olungahlaseli luhlanganisa ukuthwebula okujwayelekile kwe-MRI namaza omsindo ukuze kwakhe amamephu anemininingwane obuqina bezicubu. Ulwazi lusiza odokotela ukuthi bathole ukulimala, ukuvuvukala, noma ezinye izinguquko ezithweni zakho ezingase zingabonakali ezivivinyweni zokuthwebula ezijwayelekile.

Yini i-Magnetic Resonance Elastography?

I-MRE iyindlela yokuthwebula ethuthukisiwe esebenzisa izinkambu zikazibuthe namaza omsindo ukukala ukunwebeka kwezicubu. Lolu vivinyo lusebenza ngokuthumela ukudlidliza okumnene emzimbeni wakho ngenkathi ungaphakathi komshini we-MRI, bese kubanjwa ukuthi lawa maza ahamba kanjani ezithweni zakho.

Lapho izicubu ziphilile, zivame ukuba zithambile futhi ziguquguquka. Kodwa-ke, lapho ukulimala noma i-fibrosis ithuthuka, izicubu ziba lukhuni futhi azinwebeki kangako. I-MRE ingathola lezi zinguquko ngisho nasezigabeni zokuqala, ngokuvamile ngaphambi kokuba ezinye izivivinyo zikhombise okungajwayelekile.

Lolu vivinyo luvame ukusetshenziselwa ukuhlola impilo yesibindi, kodwa lungahlola nezinye izitho njengobuchopho, inhliziyo, izinso, nemisipha. Lokhu kuyenza ithuluzi elibalulekile lokuxilonga izimo ezihlukahlukene ngaphandle kokudinga izinqubo ezingahlaseli.

Kungani kwenziwa i-Magnetic Resonance Elastography?

Udokotela wakho angase ancome i-MRE ukuhlola ukuqina kwezitho nokuthola ukuqhubeka kwesifo. Lolu vivinyo lusebenziseka kakhulu ekuqapheni izimo zesibindi, njengoba lungakwazi ukuhlonza ukulimala (i-fibrosis) okuthuthuka ezifweni zesibindi ezihlukahlukene.

Izizathu ezivame kakhulu ze-MRE zihlanganisa ukuhlola izimo zesibindi ezingamahlalakhona njenge-hepatitis, isifo sesibindi esinamafutha, noma i-cirrhosis. Kusiza odokotela ukuthi banqume ukuthi kungakanani ukulimala okwenzekile nokuthi ngabe ukwelashwa kusebenza ngempumelelo.

Ngaphandle kokuhlolwa kwesibindi, i-MRE ingasiza ukuxilonga izimo zobuchopho, izinkinga zenhliziyo, kanye nezifo zemisipha. Nazi izimo eziyinhloko lapho i-MRE inikeza khona ulwazi olubalulekile:

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• I-Chronic hepatitis B noma C
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• Isifo sesibindi esinamafutha esingahlobene notshwala (NAFLD)
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• Isifo sesibindi esibangelwa utshwala
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• I-Primary biliary cholangitis
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• I-Autoimmune hepatitis
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• Amathumba obuchopho noma izimo zemizwa
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• Ukuqina kwemisipha yenhliziyo
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• I-Kidney fibrosis
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• Izifo zemisipha
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Kwezinye izimo, odokotela basebenzisa i-MRE ukuqapha impendulo yokwelashwa noma ukuhlela izinqubo zokuhlinzwa. Lolu vivinyo lungasiza futhi ukugwema izinqubo ezingena ngaphakathi njenge-liver biopsies ezimweni ezithile.

Yini inqubo ye-Magnetic Resonance Elastography?

Inqubo ye-MRE ifana ne-MRI scan ejwayelekile ngomehluko owodwa obalulekile: idivayisi ekhethekile ikhiqiza ukudlidliza okuncane ngesikhathi sokuthwebula izithombe. Uzoqamba amanga etafuleni elishelela emshinini we-MRI, futhi yonke inqubo ivamise ukuthatha imizuzu engama-45 kuya kwengama-60.

Ngaphambi kokuthi ukuskena kuqale, uchwepheshe uzobeka iphedi elincane, elithambile elibizwa ngokuthi

1. Uzoshintsha ugqoke ingubo yasesibhedlela futhi ususe noma yiziphi izinto zensimbi
2. Uchwepheshe ukubeka etafuleni le-MRI
3. I-pad yomshayeli ongenzi lutho ibekwa emzimbeni wakho
4. Uzothola ama-earplugs noma ama-headphones ukunciphisa umsindo
5. Itafula liyehla emshinini we-MRI
6. Ukuvibrisha okuncane kuqala ngenkathi izithombe zithathwa
7. Kuzodingeka ubambe umoya wakho isikhashana (10-20 amasekhondi)
8. Inqubo yonke iqedwa ngemizuzu engaba ngu-45-60

Kuyo yonke inqubo, ungaxhumana nochwepheshe ngohlelo lwe-intercom. Uma uzizwa ungenamahloni nganoma yisiphi isikhathi, ungangacela ukuma noma ukuthatha ikhefu.

Ungalungiselela kanjani i-Magnetic Resonance Elastography yakho?

Ukulungiselela i-MRE kuqondile futhi kufana nokulungiselela i-MRI ejwayelekile. Kuzodingeka ukuthi ugweme ukudla amahora angu-4-6 ngaphambi kokuhlolwa uma wenza izithombe zesibindi, ngoba lokhu kusiza ukuhlinzeka ngezithombe ezicacile.

Ukulungiselela okubaluleke kakhulu kuhilela ukuhlola noma yiziphi izinto zensimbi emzimbeni wakho. Njengoba i-MRE isebenzisa omazibuthe abanamandla, izinsimbi ezithile zingaba yingozi noma ziphazamise imiphumela yokuhlolwa.

Ngaphambi kokuqokwa kwakho, qiniseka ukuthi wazisa ithimba lakho lezempilo nganoma yiziphi zalezi zinto:

• Ama-Pacemakers noma ama-defibrillators
• Izitshalo ze-Cochlear
• Ukushintshwa kwamalunga ensimbi
• Ama-clips okuhlinzwa noma izitaphu
• Amadivayisi angaphakathi kwesisu (IUDs)
• Ama-Tattoos anenki yensimbi
• Ukuzenzela unomphela
• Ukubhoboza umzimba

Ngosuku lokuhlolwa kwakho, gqoka izingubo ezikhululekile, ezikhululekile ezingenazo izinto zensimbi. Cishe uzoshintsha ugqoke ingubo yasesibhedlela, kodwa izingubo ezikhululekile zenza ukuzizwela kujabulise kakhulu.

Uma unokwesaba izindawo ezivaliwe noma ukukhathazeka ngezikhala ezivaliwe, khuluma nodokotela wakho ngaphambi kwesikhathi. Bangase banikeze umuthi wokuthulisa omnene ukukusiza ukuthi uphumule ngesikhathi senqubo.

Ungawafunda kanjani imiphumela yakho ye-Magnetic Resonance Elastography?

Imiphumela ye-MRE ilinganiswa ngama-kilopascals (kPa), okukhombisa ukuqina kwezicubu. Izicubu ezijwayelekile, ezinempilo ngokuvamile zilinganisa phakathi kuka-2-3 kPa, kuyilapho izicubu eziqinile, ezinamanxeba zibonisa amanani aphezulu.

Udokotela wakho uzochaza lezi zilinganiso kanye nomlando wakho wezokwelapha neminye imiphumela yokuhlolwa. Ububanzi obuthile bungahluka ngokuya ngokuthi yiliphi ilungu lomzimba elihloliwe kanye nendlela yokuthwebula izithombe esetshenzisiwe.

Nge-liver MRE, nakhu okushiwo amanani ahlukene okuqina:

• Isibindi esijwayelekile: 2.0-3.0 kPa
• I-fibrosis elula: 3.0-4.0 kPa
• I-fibrosis emaphakathi: 4.0-5.0 kPa
• I-fibrosis eqinile: 5.0-6.0 kPa
• I-Cirrhosis: Ngaphezu kuka-6.0 kPa

Kubalulekile ukukhumbula ukuthi lezi yizinkombandlela ezijwayelekile, futhi udokotela wakho uzocabangela isimo sakho somuntu ngamunye lapho echaza imiphumela. Ezinye izimo zingabangela ukuqina kwesikhashana okungasho ngempela ukulimala unomphela.

Imiphumela ihlanganisa nezithombe ezinemininingwane ezibonisa amaphethini okuqina kulo lonke ilungu lomzimba elihloliwe. Lolu lwazi lwesikhala lusiza odokotela ukuthi bakhombe izindawo ezithile ezikhathazayo futhi bahlele ukwelashwa okufanele.

Liyini izinga elingcono kakhulu le-Magnetic Resonance Elastography?

Izinga elingcono kakhulu le-MRE lincike elungwini lomzimba elihloliwayo kanye nesimo sakho sempilo. Ngempilo yesibindi, amanani okuqina aphansi ngokuvamile abonisa izicubu ezinempilo ezinamanxeba amancane noma ukuvuvukala.

Ukufunda okujwayelekile kwe-liver MRE kuwela phakathi kuka-2.0-3.0 kPa, okusikisela izicubu ezinempilo, eziguquguqukayo. Amanani kulolu hlu ngokuvamile abonisa i-fibrosis encane nomsebenzi omuhle wesibindi.

Nokho, okuthathwa njengokufanele kungahluka ngokuya ngeminyaka yakho, izimo ezingaphansi, nezinye izici. Abanye abantu ngokwemvelo banokuqina okuyisisekelo okuphezulu kancane ngenxa yofuzo noma izifo zangaphambilini eziye zaxazululwa.

Udktela wakho uzonquma uhla oluqondiwe olususelwe ezimweni zakho eziqondile. Umgomo uvame ukuba ukugcina ukufundwa okuzinzile noma ukubona intuthuko ngokuhamba kwesikhathi, kunokufinyelela inombolo ethile.

Ziyini izici eziyingozi zemiphumela engajwayelekile ye-Magnetic Resonance Elastography?

Izici eziningana zingaba nomthelela ekwandeni kokuqina kwamalungu omzimba okutholwe yi-MRE. Ukuqonda lezi zici eziyingozi kusiza ukuchaza ukuthi kungani udokotela wakho engase ancome leli test nokuthi imiphumela ingasho ukuthini.

Izici eziyingozi ezibaluleke kakhulu zihlobene nezimo ezibangela ukuvuvukala noma ukulimala kwamalungu omzimba ngokuhamba kwesikhathi. Lezi zinqubo kancane kancane zenza izicubu zibe lukhuni futhi zingabi namandla.

Izici eziyingozi ezivamile ezingaholela emiphumeleni engajwayelekile ye-MRE zihlanganisa:

• I-hepatitis engamahlalakhona (B noma C)
• Ukusetshenziswa ngokweqile kotshwala
• Ukukhuluphala kanye ne-metabolic syndrome
• Isifo sikashukela
• Amazinga aphezulu e-cholesterol
• Izimo ze-Autoimmune
• Imithi ethile
• Izifo zesibindi zemvelo
• Izifo zamalungu omzimba zangaphambilini

Ubudala bungadlala indima, njengoba amalungu omzimba ngokwemvelo aba lukhuni kancane ngokuhamba kwesikhathi. Kodwa-ke, ukuqina okukhulu ngokuvamile kubonisa isimo esingaphansi kunokuguga okuvamile.

Ezinye izimo ezingavamile zingathinta imiphumela ye-MRE, okuhlanganisa isifo sikaWilson, i-hemochromatosis, kanye nokuntuleka kwe-alpha-1 antitrypsin. Lezi zimo zemvelo zibangela izinhlobo ezithile zomonakalo wamalungu omzimba ovela njengokuqina okwandisiwe.

Ziyini izinkinga ezingaba khona zemiphumela engajwayelekile ye-MRE?

Imiphumela engajwayelekile ye-MRE ngokwayo ayibangeli izinkinga, kodwa ingase ikhombe izimo ezingaphansi ezingaholela ezinkingeni ezinkulu zempilo uma zingelashwa. Izinkinga zincike ekutheni yiliphi ilungu lomzimba elikhombisa ukuqina okwandisiwe kanye nesizathu esingaphansi.

Ngezinkinga eziphathelene nesibindi, okukhathaza kakhulu ukuqhubekela ku-cirrhosis nokuhluleka kwesibindi. Lapho izicubu zesibindi ziqina ngokwengeziwe ngenxa yokulimala, azikwazi ukwenza imisebenzi yazo ebalulekile ngempumelelo.

Izinkinga ezingase zibe khona zokuqina kwesibindi okutholwe yi-MRE zihlanganisa:

• I-Portal hypertension (ukwanda kwengcindezi emithanjeni yegazi yesibindi)
• Ama-Varices (imithambo ekhulisiwe engopha)
• I-Ascites (ukuqongelela uketshezi esiswini)
• I-Hepatic encephalopathy (ukungasebenzi kahle kobuchopho ngenxa yezinkinga zesibindi)
• Ubungozi obukhulu bomdlavuza wesibindi
• Ukuhluleka okuphelele kwesibindi okudinga ukufakelwa

Ezinye izitho, ukuqina okungavamile kungaholela ezinkingeni ezihlukene. Ukuqina kwezicubu zobuchopho kungase kubonise amathumba noma izifo ze-neurodegenerative, kuyilapho ukuqina kwemisipha yenhliziyo kungathinta ukusebenza kokumpompa.

Izindaba ezinhle ukuthi ukutholwa kwasekuqaleni nge-MRE kuvame ukuvumela ukungenelela ngaphambi kokuba lezi zinkinga zenzeke. Izimo eziningi ezibangela ukuqina kwezitho zingelashwa noma zilawulwe ngempumelelo uma zitholwe ngokushesha.

Kufanele ngibone nini udokotela ukuze ngilandele i-Magnetic Resonance Elastography?

Kufanele uhlele ama-aphoyintimenti okulandelayo ngokusekelwe emiphumeleni yakho ye-MRE kanye nezincomo zikadokotela wakho. Isikhathi sincike ekutheni kutholakale yini izinto ezingavamile nokuthi isimo sakho singaqhubeka ngokushesha kangakanani.

Uma imiphumela yakho ye-MRE ijwayelekile, udokotela wakho angase ancome ukuphinda ukuhlolwa eminyakeni engu-1-2, ikakhulukazi uma unezici eziyingozi zesifo sezitho. Ukuqapha njalo kusiza ukubamba izinguquko ngaphambi kokuba zibe zimbi.

Ngemiphumela engavamile, cishe uzodinga ama-aphoyintimenti okulandelayo avamile. Udokotela wakho uzokwenza isimiso sokuqapha esisekelwe ekuqineni kwesimo sakho nokuthi singashintsha ngokushesha kangakanani.

Kufanele uthinte udokotela wakho ngokushesha uma uba nezimpawu ezintsha, kungakhathaliseki imiphumela yakho ye-MRE:

• Ubuhlungu besisu obuqhubekayo noma ukuvuvukala
• Ukukhathala noma ubuthakathaka obungachazeki
• Ukuphuzi kwesikhumba noma amehlo (i-jaundice)
• Umchamo omnyama noma izitulo eziphaphathekayo
• Isicanucanu noma ukulahlekelwa isifiso sokudla
• Ukulimala kalula noma ukuopha
• Ukudideka noma ubunzima bokugxilisa ingqondo

Ungalindi kuze kube yisikhathi sakho esilandelayo esihleliwe uma uhlangabezana nezimpawu ezikhathazayo. Ukungenelela ngokushesha kungenza umehluko omkhulu emiphumeleni yokwelashwa.

Imibuzo evame ukubuzwa mayelana ne-Magnetic Resonance Elastography

Q.1 Ingabe ukuhlolwa kwe-MRE kulungile ekutholeni i-liver fibrosis?

Yebo, i-MRE ilungele ukuthola i-liver fibrosis futhi ithathwa njengenye yezindlela ezinembile kakhulu ezingahlaseli ezitholakalayo. Ucwaningo lubonisa ukuthi i-MRE ingathola i-fibrosis ngokunemba okungaphezu kuka-90%, okuyenza ithembeke kakhulu kunezivivinyo zegazi noma izithombe ezijwayelekile.

I-MRE ingathola i-fibrosis ezigabeni zayo zokuqala, ngokuvamile ngaphambi kokuba izimpawu zivele noma ezinye izivivinyo zibonise ukungajwayelekile. Lokhu kutholwa ngokushesha kuvumela ukwelashwa okusheshayo okunganciphisa noma kuze kubuyisele inqubo yokulimala kwezicubu kwezinye izimo.

Q.2 Ingabe ukuqina kwesibindi okuphezulu ngaso sonke isikhathi kusho i-cirrhosis?

Cha, ukuqina kwesibindi okuphezulu akusho ngaso sonke isikhathi i-cirrhosis. Ngenkathi amanani aqinile kakhulu (ngaphezu kuka-6.0 kPa) ngokuvamile asikisela ukulimala kwezicubu okuthuthukile, ezinye izimo eziningana zingabangela ukwanda kokuqina kwesikhashana noma okubuyisekayo.

Ukuvuvukala okukhulu okuvela ku-hepatitis, ukuhluleka kwenhliziyo, noma ngisho nokudla ngaphambi kokuhlolwa kungakhuphula okwesikhashana ukuqina kwesibindi. Udokotela wakho uzocabangela isithombe sakho esiphelele sezokwelapha, hhayi nje izinombolo ze-MRE, lapho enza ukuxilongwa.

Q.3 Ngingakwenza kaningi kangakanani ukuphinda ukuhlolwa kwe-MRE?

Ukuvama kokuhlolwa kwe-MRE okuphindwayo kuncike emiphumeleni yakho yokuqala nasezimo ezingaphansi. Uma imiphumela yakho ijwayelekile futhi ungenazo izici eziyingozi, ukuhlolwa njalo eminyakeni engu-2-3 kungase kwanele.

Kubantu abanezimo zesibindi ezingamahlalakhona noma imiphumela engavamile, odokotela bavame ukuncoma i-MRE njalo emavikini angu-6-12 ukuze baqaphele ukuqhubeka kwesifo kanye nokusebenza kahle kokwelashwa. Umhlinzeki wakho wezempilo uzokwenza isimiso sokuqapha esenziwe ngendlela oyifisayo ngokusekelwe esimweni sakho esithile.

Q.4 Ingabe i-MRE ingathatha indawo ye-liver biopsy?

Ezimweni eziningi, i-MRE inganikeza ulwazi olufanayo ne-liver biopsy ngaphandle kwezingozi nokungakhululeki kwenqubo ehlaselayo. Kodwa-ke, i-biopsy isadingeka ngezinye izikhathi ukuze kutholwe ukuxilongwa okuqinisekile, ikakhulu uma imbangela yesifo sesibindi ingacacile.

I-MRE igqama ekulinganiseni i-fibrosis nasekuqapheleni izinguquko ngokuhamba kwesikhathi, kodwa i-biopsy inganikeza ulwazi olwengeziwe ngamaphethini okuvuvukala nezinhlobo ezithile zesifo. Udokotela wakho uzoqoka ukuthi yiliphi ivivinyo elifanele kakhulu isimo sakho.

Q.5 Ingabe zikhona imiphumela emibi evela ku-MRE?

I-MRE iphephile kakhulu futhi ayinayo imiphumela emibi eyaziwayo kubantu abaningi. Ukudlidliza okusetshenziswa ngesikhathi sokuhlolwa kulula futhi akunabuhlungu, kufana nokubhucungwa okulula. Izindawo kazibuthe zinamandla afanayo njengama-MRI scans avamile.

Abanye abantu bangase bazizwe bengakhululekile kancane ngenxa yokulala buthule imizuzu engama-45-60 noma bazizwe bevalekile emshinini we-MRI. Lokhu akuyona imiphumela emibi evela ekuhlolweni ngokwako, kodwa kunalokho izimpendulo ezijwayelekile endaweni yokuhlolwa ezingalawulwa ngokulungiselela okufanele.