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Identification of the primary motor cortex: value of T2 echo-planar imaging, diffusion-weighted imaging and quantitative apparent diffusion coefficient measurement at 3 T.

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Title: Identification of the primary motor cortex: value of T2 echo-planar imaging, diffusion-weighted imaging and quantitative apparent diffusion coefficient measurement at 3 T.
Authors: Dinçer A (AUTHOR), Ozyurt O (AUTHOR), Erzen C (AUTHOR), Pamir MN (AUTHOR), Dinçer, Alp1 (AUTHOR), Ozyurt, Onur (AUTHOR), Erzen, Canan (AUTHOR), Pamir, M Necmettin (AUTHOR)
Source: European Radiology. Apr2010, Vol. 20 Issue 4, p931-940. 10p.
Abstract: Objectives: To investigate the primary motor cortex (PMC) concerning T2 shortening on T2 echo-planar imaging (EPI-T2) and the double-layer sign on diffusion-weighted imaging (DWI), and also to measure its apparent diffusion coefficient (ADC).Methods: 3-T MR DWI was performed in 134 adult volunteers and 64 patients. T2 shortening was graded as hypointense or isointense compared with the signal of the superior frontal cortex (SFC). The double-layer sign of the PMC was graded as present or absent. Both findings (T2 shortening and double-layer sign) were evaluated independently by two authors. ADC of the PMC and the SFC were calculated using manually selected ROIs.Results: T2 shortening was found in 131 adults and 62 patients by author 1 and in 132 adults and 61 patients by author 2 (kappa = 0.96 and 0.91). The double-layer sign was found in 131 adults and 61 patients by author 1 and in 127 adults and 58 patients by author 2 (kappa = 0.94 and 0.91). ADC values of the PMC and the SFC were different for all subjects (p < 0.01).Conclusions: T2 shortening and/or the double-layer sign on 3-T MR can be used to locate the PMC. The difference in ADC values between PMC and SFC is a distinguishing feature. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Identification of the primary motor cortex: value of T2 echo-planar imaging, diffusion-weighted imaging and quantitative apparent diffusion coefficient measurement at 3 T.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Din&#231;er+A%22&quot;&gt;Din&#231;er A&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ozyurt+O%22&quot;&gt;Ozyurt O&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Erzen+C%22&quot;&gt;Erzen C&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Pamir+MN%22&quot;&gt;Pamir MN&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Din&#231;er%2C+Alp%22&quot;&gt;Din&#231;er, Alp&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ozyurt%2C+Onur%22&quot;&gt;Ozyurt, Onur&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Erzen%2C+Canan%22&quot;&gt;Erzen, Canan&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Pamir%2C+M+Necmettin%22&quot;&gt;Pamir, M Necmettin&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Radiology%22&quot;&gt;European Radiology&lt;/searchLink&gt;. Apr2010, Vol. 20 Issue 4, p931-940. 10p.
– Name: Abstract
  Label: Abstract
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  Data: &lt;bold&gt;Objectives: &lt;/bold&gt;To investigate the primary motor cortex (PMC) concerning T2 shortening on T2 echo-planar imaging (EPI-T2) and the double-layer sign on diffusion-weighted imaging (DWI), and also to measure its apparent diffusion coefficient (ADC).&lt;bold&gt;Methods: &lt;/bold&gt;3-T MR DWI was performed in 134 adult volunteers and 64 patients. T2 shortening was graded as hypointense or isointense compared with the signal of the superior frontal cortex (SFC). The double-layer sign of the PMC was graded as present or absent. Both findings (T2 shortening and double-layer sign) were evaluated independently by two authors. ADC of the PMC and the SFC were calculated using manually selected ROIs.&lt;bold&gt;Results: &lt;/bold&gt;T2 shortening was found in 131 adults and 62 patients by author 1 and in 132 adults and 61 patients by author 2 (kappa = 0.96 and 0.91). The double-layer sign was found in 131 adults and 61 patients by author 1 and in 127 adults and 58 patients by author 2 (kappa = 0.94 and 0.91). ADC values of the PMC and the SFC were different for all subjects (p &lt; 0.01).&lt;bold&gt;Conclusions: &lt;/bold&gt;T2 shortening and/or the double-layer sign on 3-T MR can be used to locate the PMC. The difference in ADC values between PMC and SFC is a distinguishing feature. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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