Ara\u015ft\u0131rmac\u0131lar, meta malzemelerden ilham alarak, v\u00fccudun \u015fimdiye kadar ayr\u0131nt\u0131l\u0131 olarak g\u00f6r\u00fclmesi zor olan b\u00f6lgelerinin \u00e7ok daha net g\u00f6r\u00fcnt\u00fclerini yakalamaya yard\u0131mc\u0131 olabilecek yeni bir t\u00fcr manyetik rezonans anteni geli\u015ftirdiler.<\/p>\n
Max Delbr\u00fcck Center’a g\u00f6re, MRI taramalar\u0131, beynin belirli b\u00f6lgeleri, g\u00f6z ve y\u00f6r\u00fcnge gibi derin doku veya \u00e7ok hassas yap\u0131lar\u0131n net g\u00f6r\u00fcnt\u00fclerini \u00fcretmekte s\u0131kl\u0131kla zorluk \u00e7ekiyor. Ara\u015ft\u0131rmac\u0131lar, yeni, hafif ve geli\u015fmi\u015f antenin, mevcut MRI makinelerinde de\u011fi\u015fiklik yap\u0131lmas\u0131n\u0131 gerektirmeden g\u00f6r\u00fcnt\u00fc kalitesini art\u0131rabildi\u011fini ve muayene s\u00fcresini k\u0131saltabildi\u011fini belirtiyor.<\/p>\n
Manyetik rezonans g\u00f6r\u00fcnt\u00fcleme, t\u0131ptaki en \u00f6nemli te\u015fhis ara\u00e7lar\u0131 aras\u0131nda yer al\u0131yor. Ancak baz\u0131 durumlarda s\u0131n\u0131rlama cihaz\u0131n kendisiyle de\u011fil, radyo frekans sinyallerini g\u00f6nderen ve alan cihazla ilgilidir. Radyofrekans bobinleri olarak da bilinen standart antenler genellikle derin dokulardan veya karma\u015f\u0131k anatomik alanlardan yeterli sinyali toplamakta ba\u015far\u0131s\u0131z olur. Sonu\u00e7 olarak, taramalar daha uzun s\u00fcrebilir ve g\u00f6r\u00fcnt\u00fcler \u00f6nemli ayr\u0131nt\u0131lar\u0131 g\u00f6stermeyebilir.<\/p>\n
Max Delbr\u00fcck Merkezi’ndeki Profes\u00f6r Thoralf Niendorf’un Deneysel Ultra Y\u00fcksek Alan Manyetik Rezonans laboratuvar\u0131nda doktora \u00f6\u011frencisi olan Nandita Saha liderli\u011findeki ekip, geli\u015fmi\u015f malzemeleri temel alan yeni bir MRI anteni olu\u015fturdu. \u00c7al\u0131\u015fma Advanced Materials dergisinde yay\u0131nland\u0131.<\/p>\n
Niendorf ve meslekta\u015flar\u0131, Rostock \u00dcniversitesi T\u0131p Merkezi’nden ara\u015ft\u0131rmac\u0131larla i\u015fbirli\u011fi yaparak MRI fizi\u011fi, klinik oftalmoloji ve translasyonel g\u00f6r\u00fcnt\u00fclemeyi bir araya getirdi. Rostock ekibi ayn\u0131 zamanda teknolojinin klinik kullan\u0131m i\u00e7in de\u011ferlendirilmesine de yard\u0131mc\u0131 oluyor.<\/p>\n
Makalenin k\u0131demli yazar\u0131 Niendorf, “Metamalzemelerden al\u0131nan kavramlar\u0131 kullanarak, radyofrekans alanlar\u0131n\u0131 daha verimli bir \u015fekilde y\u00f6nlendirebildik ve ileri fizi\u011fin t\u0131bbi g\u00f6r\u00fcnt\u00fclemeyi nas\u0131l do\u011frudan iyile\u015ftirebilece\u011fini g\u00f6sterebildik” diyor.<\/p>\n
MRI, v\u00fccuda radyofrekans sinyalleri g\u00f6ndererek ve g\u00fc\u00e7l\u00fc bir manyetik alan i\u00e7indeki dokular\u0131n tepkisini \u00f6l\u00e7erek g\u00f6r\u00fcnt\u00fcler olu\u015fturur. Sinyaller ne kadar g\u00fc\u00e7l\u00fc olursa g\u00f6r\u00fcnt\u00fcler de o kadar net olur. Bu s\u00fcreci iyile\u015ftirmek i\u00e7in ara\u015ft\u0131rmac\u0131lar meta malzemeleri do\u011frudan antene entegre ettiler.<\/p>\n
Meta malzemeler, elektromanyetik dalgalar\u0131 do\u011fal malzemelerin yapamayaca\u011f\u0131 \u015fekilde y\u00f6nlendirebilen m\u00fchendislik yap\u0131lar\u0131d\u0131r. Yeni anten, hedef dokulardan gelen sinyalleri g\u00fc\u00e7lendirir, uzaysal \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc art\u0131r\u0131r, netli\u011fi art\u0131r\u0131r ve veri toplamay\u0131 h\u0131zland\u0131r\u0131r. Daha da \u00f6nemlisi, mevcut MRI sistemleriyle \u00e7al\u0131\u015ft\u0131\u011f\u0131 i\u00e7in hastanelerin tamamen yeni bir altyap\u0131ya ihtiyac\u0131 olmayacak.<\/p>\n
Teknoloji, g\u00f6n\u00fcll\u00fclerde g\u00f6z ve y\u00f6r\u00fcnge alan\u0131n\u0131n 7,0 Tesla manyetik alanla MRI’da g\u00f6r\u00fcnt\u00fclenmesiyle test edildi. Rostock \u00dcniversitesi T\u0131p Fak\u00fcltesi’nden Profes\u00f6r Oliver Stachs’a g\u00f6re bu \u00e7al\u0131\u015fma oftalmoloji a\u00e7\u0131s\u0131ndan \u00f6zellikle \u00f6nem ta\u015f\u0131yor \u00e7\u00fcnk\u00fc y\u00fcksek \u00e7\u00f6z\u00fcn\u00fcrl\u00fckl\u00fc g\u00f6r\u00fcnt\u00fclere ve g\u00f6z\u00fcn anatomik ayr\u0131nt\u0131lar\u0131na olanak sa\u011fl\u0131yor. Bu teknolojinin, daha \u00f6nce b\u00fcy\u00fck \u00f6l\u00e7\u00fcde eri\u015filemeyen g\u00f6z ve fizyolojik ve patolojik s\u00fcre\u00e7leri g\u00f6zlemlemek i\u00e7in yeni bir pencere a\u00e7abilece\u011fini s\u00f6yl\u00fcyor.<\/p>\n
Saha, ayn\u0131 teknolojinin, \u00f6rne\u011fin t\u0131bbi implantlar\u0131n etraf\u0131ndaki istenmeyen \u0131s\u0131nmay\u0131 azaltarak, MRI s\u0131ras\u0131nda v\u00fccudun hassas b\u00f6lgelerini korumak i\u00e7in de uyarlanabilece\u011fini ekliyor. Ayr\u0131ca, t\u00fcm\u00f6rlerin kontroll\u00fc \u0131s\u0131t\u0131lmas\u0131 veya dokular\u0131n termal ablasyonu da dahil olmak \u00fczere, kanser tedavisinde MRI destekli tedaviler i\u00e7in radyofrekans enerjisinin daha hassas bir \u015fekilde odaklanmas\u0131na yard\u0131mc\u0131 olabilir.<\/p>\n
MRI incelemeleri, \u00f6zellikle \u00f6nemli yap\u0131lar yeterince net g\u00f6r\u00fclemedi\u011finden tekrarlanmalar\u0131 gerekti\u011finde hastalar i\u00e7in uzun ve rahats\u0131z edici olabilir. Daha k\u0131sa taramalar, hastalar\u0131n makinede ge\u00e7irdi\u011fi s\u00fcreyi k\u0131salt\u0131rken, daha keskin g\u00f6r\u00fcnt\u00fcler doktorlar\u0131n daha kesin tan\u0131 koymas\u0131na yard\u0131mc\u0131 olacak.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar art\u0131k \u00e7e\u015fitli hastanelerde daha b\u00fcy\u00fck \u00e7al\u0131\u015fmalar haz\u0131rl\u0131yor ve tasar\u0131m\u0131 kalp ve b\u00f6brekler de dahil olmak \u00fczere di\u011fer organlar i\u00e7in uyarl\u0131yor.<\/p>\n
Kaynak: prizrenpost<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" Ara\u015ft\u0131rmac\u0131lar, meta malzemelerden ilham alarak, v\u00fccudun \u015fimdiye kadar ayr\u0131nt\u0131l\u0131 olarak g\u00f6r\u00fclmesi zor olan b\u00f6lgelerinin \u00e7ok daha net g\u00f6r\u00fcnt\u00fclerini yakalamaya yard\u0131mc\u0131 olabilecek yeni bir t\u00fcr manyetik rezonans anteni geli\u015ftirdiler. Max Delbr\u00fcck Center’a g\u00f6re, MRI taramalar\u0131, beynin belirli b\u00f6lgeleri, g\u00f6z ve y\u00f6r\u00fcnge gibi derin doku veya \u00e7ok hassas yap\u0131lar\u0131n net g\u00f6r\u00fcnt\u00fclerini \u00fcretmekte s\u0131kl\u0131kla zorluk \u00e7ekiyor. Ara\u015ft\u0131rmac\u0131lar, yeni, […]<\/p>\n","protected":false},"author":1,"featured_media":10330,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-45870","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saglik"],"views":7,"_links":{"self":[{"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/posts\/45870","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/comments?post=45870"}],"version-history":[{"count":0,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/posts\/45870\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/media\/10330"}],"wp:attachment":[{"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/media?parent=45870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/categories?post=45870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prizrenpost.com\/tr\/wp-json\/wp\/v2\/tags?post=45870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}