I-Multiple sclerosis yisimo sempilo esingelapheki lapho kulimala khona i-myelin, isembozo esivikela amangqamuzana ezinzwa ebuchosheni bomuntu kanye nomgogodla. Umonakalo ubonakala ku-MRI scan (i-MRI high pressure medium injector). Isebenza kanjani i-MRI ye-MS?
Umjovo we-MRI womfutho ophezulu usetshenziselwa ukujova okuphakathi nendawo ekuskeneni kwezithombe zezokwelapha ukuze kuthuthukiswe ukugqama kwesithombe nokwenza lula ukuxilonga isiguli. Iskena se-MRI ukuhlola kwesithombe esisebenzisa inkambu kazibuthe namagagasi omsakazo ukuze kwakhe isithombe ngokulinganisa okuqukethwe kwamanzi ezicutshini. Akubandakanyi ukuchayeka emisebeni. Kuyindlela esebenzayo yokuthwebula odokotela abangayisebenzisa ukuxilonga i-MS nokuqapha ukuqhubeka kwayo. I-MRI iwusizo ngoba i-myelin, into echithwa yi-MS, iqukethe izicubu ezinamafutha. Amafutha anjengamafutha ngoba axosha amanzi. Njengoba i-MRI ikala okuqukethwe kwamanzi, izindawo ze-myelin ezilimele zizobonakala ngokucacile. Kuskeni sesithombe, izindawo ezilimele zingavela zimhlophe noma zibe mnyama, kuye ngohlobo lwesikena se-MRI noma ukulandelana. Izibonelo zezinhlobo zokulandelana kwe-MRI ezisetshenziswa odokotela ukuxilonga i-MS zihlanganisa: I-T1-weighted: I-radiologist izojova umuntu ngento ebizwa nge-gadolinium. Ngokuvamile, izinhlayiya ze-gadolinium zinkulu kakhulu ukuthi zingadlula ezingxenyeni ezithile zobuchopho. Nokho, uma umuntu enomonakalo ebuchosheni, izinhlayiya zizogqamisa indawo eyonakele. Ukuskena okunesisindo se-T1 kuzodala izilonda zibonakale zimnyama ukuze udokotela akwazi ukuzibona kalula. Izikena ezinesisindo se-T2: Kuskena esinesisindo se-T2, isazi se-radiologist sizophatha amapulse ahlukene ngomshini we-MRI. Izilonda ezindala zizovela ngombala ohlukile kunezilonda ezintsha. Ngokungafani nezithombe zokuskena ezinesisindo se-T1, izilonda zibonakala zilula ezithombeni ezinesisindo se-T2. I-Fluid-attenuated inversion recovery (FLAIR): Izithombe ze-FLAIR zisebenzisa ukulandelana okuhlukile kwama-pulses kune-T1 ne-T2 imaging. Lezi zithombe zizwela kakhulu izilonda zobuchopho ezivame ukubangelwa yi-MS. I-imaging yomgogodla: Ukusebenzisa i-MRI ukukhombisa umgogodla kungasiza udokotela ukuthi abone izilonda ezenzeka lapha kanye nasebuchosheni, okubalulekile ekwenzeni ukuxilongwa kwe-MS. Abanye abantu bangase babe sengcupheni yokungezwani ne-gadolinium esetshenziswa izikena ezinesisindo se-T1. I-Gadolinium ingandisa futhi ingozi yokulimala kwezinso kubantu asebevele benokuncipha okuthile ekusebenzeni kwezinso.
Isikhathi sokuthumela: Aug-15-2023
