Alexander Squires, Kevin C Chan, Leon C Ho, Ian A Sigal, Ning-Jiun Jan, Zion Tsz Ho Tse
{"title":"MAPS - a Magic Angle Positioning System for Enhanced Imaging in High-Field Small-Bore MRI.","authors":"Alexander Squires, Kevin C Chan, Leon C Ho, Ian A Sigal, Ning-Jiun Jan, Zion Tsz Ho Tse","doi":"10.1142/S2424905X16400043","DOIUrl":null,"url":null,"abstract":"<p><p>The \"magic angle\" MRI effect can enhance signal intensity in aligned collagenous structures oriented at approximately 55° with respect to the main magnetic field. The difficulty of positioning tissue inside closed-bore scanners has hampered magic angle use in research and clinics. An MRI-conditional mechatronic system has been developed to control sample orientation inside a 9.4T small bore MRI scanner. The system orients samples to within 0.5° and enables a 600% increase in tendon signal intensity.</p>","PeriodicalId":73821,"journal":{"name":"Journal of medical robotics research","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1142/S2424905X16400043","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of medical robotics research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/S2424905X16400043","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2016/3/31 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The "magic angle" MRI effect can enhance signal intensity in aligned collagenous structures oriented at approximately 55° with respect to the main magnetic field. The difficulty of positioning tissue inside closed-bore scanners has hampered magic angle use in research and clinics. An MRI-conditional mechatronic system has been developed to control sample orientation inside a 9.4T small bore MRI scanner. The system orients samples to within 0.5° and enables a 600% increase in tendon signal intensity.
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