{"id":6410,"date":"2020-06-15T12:22:43","date_gmt":"2020-06-15T11:22:43","guid":{"rendered":"https:\/\/euromedic.rs\/pregledi\/magnetna-rezonancija-u-dijagnostici-mozdanog-udara-copy\/"},"modified":"2021-03-30T11:23:40","modified_gmt":"2021-03-30T10:23:40","slug":"magnetna-rezonancija-mr-u-dijagnostici-multiple-skleroze","status":"publish","type":"post","link":"https:\/\/euromedic.rs\/pregledi\/dijagnostika\/magnetna-rezonancija\/magnetna-rezonancija-mr-u-dijagnostici-multiple-skleroze\/","title":{"rendered":"Magnetna rezonancija &#8211; MR u dijagnostici multiple skleroze"},"content":{"rendered":"<p>Multipla skleroza (MS) je hroni\u010dno, imunolo\u0161ki posredovano\/ autoimuno oboljenje centralnog nervnog sistema koje karakteri\u0161u inflamacija, demijelinizacija i neurodegeneracija. U osnovi je patolo\u0161ki izmenjen imuni odgovor koji dovodi do o\u0161te\u0107enja mijelina- ovojnice nervnih vlakana, sa posledi\u010dnim poreme\u0107ajem provo\u0111enja nervnih impulsa. Posledica demijelinizacije je o\u0161te\u0107enje i propadanje aksona \u0161to dovodi do trajnog gubitka neuronskih funkcija.<\/p>\n<p>U zavisnosti od lokalizacije o\u0161te\u0107enja u CNS-u, MS mo\u017ee dati razli\u010ditu klini\u010dku sliku i simptome u vidu poreme\u0107aja vida, motorne slabosti, senzitivnih smetnji, vrtoglavice, sfinkterijalnih tegoba, kognitivnih poreme\u0107aja.<\/p>\n<p>Etiologija bolesti nije razja\u0161njena, ali je dokazano da genetska predispozicija (prisustvo genskog alela HLA-DRBI* 1501), faktori sredine (izlo\u017eenost suncu\/UV zra\u010denje, pu\u0161enje) i virusne infekcije (Epstain-Bar virus) imaju zna\u010dajnu ulogu i njenom nastanku.<\/p>\n<p>Za postavljanje dijagnoze MS, osim anamneze i neurolo\u0161kog nalaza, neophodna su dopunska dijagnosti\u010dka ispitivanja u vidu pregleda mozga\/ki\u010dmene mo\u017edine magnetnom rezonancom, pregled likvora i evocirani potencijali.<\/p>\n<p><a href=\"https:\/\/euromedic.rs\/usluge\/magnetna-rezonanca\/\">Magnetna rezonanca (MR)<\/a> predstavlja neinvazivnu dijagnosti\u010dku metodu koja omogu\u0107ava prikaz telesnih struktura upotrebom magnetnog polja. Pregled je apsolutno bezbedan i izvodi se u nativnoj i postkontrastnoj seriji, koja podrazumeva aplikovanje paramagnetnog kontrastnog sredstva koje poja\u010dava signal i time posti\u017ee ve\u0107u diferencijaciju tkiva.<\/p>\n<p>Senzitivnost MR pregleda kod pacijenata sa MS-om iznosi do 95% i omogu\u0107ava otkrivanje podru\u010dja koja su izgubila mijelin. Ona \u010dak mo\u017ee razlikovati podru\u010dja aktivne, sve\u017ee demijelinizacije od podru\u010dja koje je demijelinizacija zahvatila pre du\u017eeg vremena.<\/p>\n<p>Na snimcima se vide pojedina\u010dne okrugle\/ovalne lezije (demijelinizacioni plakovi)<span class=\"Apple-converted-space\">\u00a0 <\/span>ili konfluentne zone izmenjenog signala u mozgu ili ki\u010dmenoj mo\u017edini.<\/p>\n<p>S\u2019 obzirom da MS obuhvata postojanje lezija u vremenu i prostoru, nativna MR serija prikazuje demijelinizaciju u prostoru tj.prisustvo jedne ili vi\u0161e lezija na razli\u010ditim ali tipi\u010dnim lokalizacijama, dok postkontrastna studija pokazuje demijelinizaciju u vremenu i efikasnost terapije.<\/p>\n<p>Kontrolni MR pregledi indikovani su radi procene evolucije postoje\u0107ih plakova, pojave novonastalih, kao i efekata terapije.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Multipla skleroza (MS) je hroni\u010dno, imunolo\u0161ki posredovano\/ autoimuno oboljenje centralnog nervnog sistema koje karakteri\u0161u inflamacija,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":7066,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[473],"tags":[402,401],"class_list":["post-6410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnetna-rezonancija","tag-magnetna-rezonancija","tag-mr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Magnetna rezonancija u dijagnostici mo\u017edanog udara<\/title>\n<meta name=\"description\" content=\"Multipla skleroza (MS) je hroni\u010dno, imunolo\u0161ki posredovano\/ autoimuno oboljenje centralnog nervnog sistema koje karakteri\u0161u inflamacija...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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