Zithunzi zojambulidwa ndi maginito (MRI) ndizomwe zimayesedwa ku golide kuti azindikire ndikuwona momwe matenda a multiple sclerosis akuyendera. Chinthu chofunika kwambiri pa ma MRIs ndi chakuti angapereke zokhudzana ndi umoyo wa munthu popanda kuwononga.
Mbali yofunikira ya MRI ikuphatikizapo kuyendetsa dye wosiyana. Dayi iyi ndi gadolinium yosiyana ndi wothandizira woperekedwa kudzera mu mitsempha ya munthu.
Zimatulutsa zilonda za MS pa MRI, zomwe zimathandiza katswiri wa sayansi kudziwa kuti MS ali ndi mphamvu, ngati ali pakalipano kapena atangobwereranso posachedwapa.
Kuchokera kwa Ubongo ndi Zojambula Zogwirizana ndi Gadolinium
Ngakhale kusiyana kwa gadolinium kungawononge zotsatira zochepa monga kupweteka mutu, kunyowa, chizungulire, kapena kutentha kwadzidzidzi pamene jekeseni, chinthu chimodzi chodetsa nkhaŵa chomwe chawoneka ndichoti kusiyana kwa gadolinium sikuthetsedwa kwathunthu m'thupi la munthu mutatha kulandira .
Ndipotu, mu 2015, ataphunzira kafukufuku, a FDA adatulutsira Chitetezo Chotsimikizira kuti anthu omwe ali ndi MS omwe amalandira mankhwala osiyanasiyana a MRIs akhoza kupeza zochepa za ogulitsa malingana ndi gadolinium omwe amaikidwa m'madera ena a ubongo wawo.
Zidakali zodziwika kuti ndalamazi zikutanthawuza chiyani, ngati kusungidwa kwa iwo kudzavulaza munthu m'tsogolomu. Kuonjezerapo, sizitsutsa kwathunthu ngati magulu ena osiyana-siyana a gadolinium ali ochepa kapena oposa omwe angapangidwe mu ubongo kusiyana ndi ena.
Nkhani yabwino ndi yakuti ochita kafukufuku akufufuza mwatsatanetsatane kupeza kumeneku. Kafukufuku wofufuza kafukufuku wotsutsa kafukufuku anapeza kuti kuyang'anira magayidwe a gadolinium osiyana-siyana anali odalira kwambiri (kutanthauza kuti nthawi zambiri munthu amasiyanasiyana, ubongo umakhala nawo).
Phunzirolo linanenanso kuti panalibe mgwirizano pakati pa ubongo wa gadolinium osiyana ndi opaleshoni komanso malingaliro a impso za munthu, zaka, chikhalidwe kapena nthawi pakati pa kufanana kwawo (MRI yawo yomaliza) ndi imfa.
N'kofunikanso kuzindikira kuti fupa limatuluka likhoza kuchitika makamaka, kafukufuku amasonyeza kuti mafupa amakhala ofala kuposa ubongo.
Ponseponse, malo akuluakulu otengera kunyumba ndi awa omwe ofufuza amafunika kupitiliza kuphunzira zovuta izi kuti adziwe zomwe zingathe kuvulaza.
Zovuta Zina Zosiyanitsa Dye Ndi MRI
Kawirikawiri, mitundu ina ya kusiyana kwa gadolinium ingayambitse matenda aakulu omwe amatchedwa nephrogenic systemic fibrosis mwa anthu omwe ali ndi vuto lalikulu la impso. Matendawa amachititsa kuti khungu likhale lolimba komanso liwononge ziwalo za mkati.
Ichi ndichifukwa chake ndi kofunika kwambiri kuuza dokotala wanu za mavuto aliwonse a impso musanafike MRI yanu. Dokotala wanu angafunikire kuyesa magazi kuti ayang'ane ntchito yanu ya impso.
Zonsezi zikunenedwa, pogwiritsidwa ntchito kwa mtundu wa MRIs wosasiyana, kuchepetsa kuchepa kwa osiyana, komanso osiyana siyana omwe ali oopsa, vutoli ndilosavuta kwambiri tsopano.
Komanso kawirikawiri, anthu ena ali ndi zovuta zosiyana ndi kusiyana kwa gadolinium. Kawirikawiri, momwe amachitira ndi ofatsa ndipo zimapangitsa kuyabwa khungu. Kawirikawiri, munthu akhoza kuyamba kuyambitsa matenda aakulu kwa gadolinium.
Kodi MRI ingachitidwe popanda kusiyana mu MS?
Ndithudi, MRI imawunikira ikhoza kuchitidwa kapena popanda dye kusiyana.
Koma mu MS, dye yosiyana "imayatsa" imayika pa mitsempha ya mitsempha, zomwe zimapangitsa kuti zikhale zosavuta kuzindikira ndi kuchepetsa zipsinjo . Zilonda zomwe zimakhala zosiyana ndi maulamuliro zimasonyeza kutupa kokhazikika.
Mwachitsanzo, munthu yemwe ali ndi kachilombo koyambitsa matenda a MS angadandaule ndi masomphenya ndi zowawa pamene akusuntha mpira wawo wa maso (zizindikiro zosonyeza optic neuritis ). Chilonda chatsopano pa mitsempha ya optic, yomwe imawoneka ngati malo owala pa MRI ndi zosiyana, zikhoza kutsimikizira izi.
Izi zikanenedwa, ngati dokotala akungokhalira kuganiza kuti kutupa ndikuthamanga ndikungoyang'anitsitsa kupititsa patsogolo kwa matenda anu, kusiyana sikukusowa.
Zowonjezereka Zowopsa za MRIs
Kujambula kwa MRI kumagwiritsa ntchito magnetism ndi mafunde a wailesi kuti apange zithunzi za ziwalo zamkati. Mosiyana ndi X-ray, yomwe imatha kujambula zithunzi zolimba monga mafupa, MRI ingapangire zithunzi za zofewa ndi ziphuphu. Ngakhale zili choncho, zopatsa mphamvu, mafupa kapena ziwalo, komanso ngakhale ma IUD angayambitse mavuto, monga momwe MRI imagwiritsira ntchito magetsi amphamvu kuti apange zithunzi.
Kuwonjezera apo, makina a MRI ndi ovuta kwambiri kwa anthu omwe ali ndi claustrophobia, ngakhale malo ena opangira zithunzi akugwiritsa ntchito MRI yotseguka yomwe imabweretsa nkhawa pang'ono.
Ngati muli ndi MRI, onetsetsani kuti mumauza dokotala wanu ndi katswiri wamakina a MRI ngati muli ndi zitsulo, claustrophobia, matenda, kapena impso. Adzatha kukuuzani zomwe ziri komanso zomwe sizili bwino komanso momwe angapitirire.
Mawu Ochokera
Chifukwa gadolinium ndi chida chodziŵika bwino kwambiri pakuwona kupita patsogolo kwa MS, chikugwiritsidwanso ntchito nthawi zambiri. Zomwe zikunenedwa, ngati muli ndi nkhawa, njira yabwino ndi kukambirana ndi dokotala. Ngakhale kuti n'zotheka kukhala ndi MRI yopanda kusiyanitsa, sizingathandize kuzindikira kutentha kwa MS, monga momwe adawonera panthawi yobwereza.
> Zosowa
> McDonald RJ et al. Intracranial gadolinium deposition pambuyo pa MR imaging. Zamankhwala . 2015 Jun; 275 (3): 772-82.
> Murata N et al. Macrocyclic ndi ena omwe si gulu la gadolinium opanga kusiyana amaika gadolinium m'munsi mwa ubongo ndi minofu: Zotsatira zoyambirira kuchokera kwa odwala 9 omwe ali ndi chizoloŵezi chochita chiwerewere. Sungani Radiol. 2016 Jul; 51 (7): 447-53.
> National Multiple Sclerosis Society. (September 2015). FDA Kuphunzira Zowopsa Zowonjezereka Zomwe Zimagwiritsidwa Ntchito Kawirikawiri Zimagwiritsidwa Ntchito Mmodzi Wotsutsana ndi MRI.
> Ramalho et al. Gawoli lochokera ku Gadolinium losiyanitsa ndi poizoni: Zosintha. AJNR Am J Neuroradiol. 2016 Jul; 37 (7): 1192-8
> Utsogoleri wa US Food and Drug Administration. (July 2015). FDA Drug Safety Communication: FDA yowona kuopsa kwa ubongo ndi kugwiritsidwa ntchito mobwerezabwereza ndi mawonekedwe a gadolinium ojambula maginito (MRI).