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<meta name="DC.Title" content="Diagnostic and Prognostic Value of 11C-Methionine PET for Nonenhancing Gliomas" />
<meta name="DC.Identifier" content="10.3174/ajnr.A4460" />
<meta name="DC.Date" content="2016-01-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="© 2016 by American Journal of Neuroradiology. Indicates open access to non-subscribers at www.ajnr.org" />
<meta name="DC.AccessRights" content="open-access" />
<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Noninvasive radiologic evaluation of glioma can facilitate correct diagnosis and detection of malignant transformation. Although positron-emission tomography is considered valuable in the care of patients with gliomas, 18F-fluorodeoxyglucose and 11C-methionine have reportedly shown ambiguous results in terms of grading and prognostication. The present study compared the diagnostic and prognostic capabilities of diffusion tensor imaging, FDG, and 11C-methionine PET in nonenhancing gliomas.

MATERIALS AND METHODS: Thirty-five consecutive newly diagnosed, histologically confirmed nonenhancing gliomas that underwent both FDG and 11C-methionine PET were retrospectively investigated (23 grade II and 12 grade III gliomas). Apparent diffusion coefficient, fractional anisotropy, and tumor-to-normal tissue ratios of both FDG and 11C-methionine PET were compared between grade II and III gliomas. Prognostic values of these parameters were also tested by using progression-free survival.

RESULTS: Grade III gliomas showed significantly higher average tumor-to-normal tissue and maximum tumor2-to-normal tissue than grade II gliomas in 11C-methionine ( P = .013, P = .0017, respectively), but not in FDG-PET imaging. There was no significant difference in average ADC, minimum ADC, average fractional anisotropy, and maximum fractional anisotropy. 11C-methionine PET maximum tumor-to-normal tissue ratio of 2.0 was most suitable for detecting grade III gliomas among nonenhancing gliomas (sensitivity, 83.3%; specificity, 73.9%). Among patients not receiving any adjuvant therapy, median progression-free survival was 64.2 ± 7.2 months in patients with maximum tumor-to-normal tissue ratio of &lt;2.0 for 11C-methionine PET and 18.6 ± 6.9 months in patients with maximum tumor-to-normal tissue ratio of &gt;2.0 ( P = .0044).

CONCLUSIONS: 11C-methionine PET holds promise for World Health Organization grading and could offer a prognostic imaging biomarker for nonenhancing gliomas.

MET
:   11C-methionine
PFS
:   progression-free survival
T/N
:   tumor-to-normal tissue
T/Nave
:   average tumor-to-normal tissue
T/Nmax
:   maximum tumor-to-normal tissue" />
<meta name="DC.Contributor" content="K. Takano" />
<meta name="DC.Contributor" content="M. Kinoshita" />
<meta name="DC.Contributor" content="H. Arita" />
<meta name="DC.Contributor" content="Y. Okita" />
<meta name="DC.Contributor" content="Y. Chiba" />
<meta name="DC.Contributor" content="N. Kagawa" />
<meta name="DC.Contributor" content="Y. Fujimoto" />
<meta name="DC.Contributor" content="H. Kishima" />
<meta name="DC.Contributor" content="Y. Kanemura" />
<meta name="DC.Contributor" content="M. Nonaka" />
<meta name="DC.Contributor" content="S. Nakajima" />
<meta name="DC.Contributor" content="E. Shimosegawa" />
<meta name="DC.Contributor" content="J. Hatazawa" />
<meta name="DC.Contributor" content="N. Hashimoto" />
<meta name="DC.Contributor" content="T. Yoshimine" />
<meta name="article:published_time" content="2016-01-01" />
<meta name="article:section" content="ADULT BRAIN" />
<meta name="citation_title" content="Diagnostic and Prognostic Value of 11C-Methionine PET for Nonenhancing Gliomas" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Noninvasive radiologic evaluation of glioma can facilitate correct diagnosis and detection of malignant transformation. Although positron-emission tomography is considered valuable in the care of patients with gliomas, &lt;sup&gt;18&lt;/sup&gt;F-fluorodeoxyglucose and &lt;sup&gt;11&lt;/sup&gt;C-methionine have reportedly shown ambiguous results in terms of grading and prognostication. The present study compared the diagnostic and prognostic capabilities of diffusion tensor imaging, FDG, and &lt;sup&gt;11&lt;/sup&gt;C-methionine PET in nonenhancing gliomas.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;Thirty-five consecutive newly diagnosed, histologically confirmed nonenhancing gliomas that underwent both FDG and &lt;sup&gt;11&lt;/sup&gt;C-methionine PET were retrospectively investigated (23 grade II and 12 grade III gliomas). Apparent diffusion coefficient, fractional anisotropy, and tumor-to-normal tissue ratios of both FDG and &lt;sup&gt;11&lt;/sup&gt;C-methionine PET were compared between grade II and III gliomas. Prognostic values of these parameters were also tested by using progression-free survival.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;Grade III gliomas showed significantly higher average tumor-to-normal tissue and maximum tumor2-to-normal tissue than grade II gliomas in &lt;sup&gt;11&lt;/sup&gt;C-methionine (&lt;i&gt;P&lt;/i&gt; = .013, &lt;i&gt;P&lt;/i&gt; = .0017, respectively), but not in FDG-PET imaging. There was no significant difference in average ADC, minimum ADC, average fractional anisotropy, and maximum fractional anisotropy. &lt;sup&gt;11&lt;/sup&gt;C-methionine PET maximum tumor-to-normal tissue ratio of 2.0 was most suitable for detecting grade III gliomas among nonenhancing gliomas (sensitivity, 83.3%; specificity, 73.9%). Among patients not receiving any adjuvant therapy, median progression-free survival was 64.2 ± 7.2 months in patients with maximum tumor-to-normal tissue ratio of &amp;lt;2.0 for &lt;sup&gt;11&lt;/sup&gt;C-methionine PET and 18.6 ± 6.9 months in patients with maximum tumor-to-normal tissue ratio of &amp;gt;2.0 (&lt;i&gt;P&lt;/i&gt; = .0044).&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;&lt;sup&gt;11&lt;/sup&gt;C-methionine PET holds promise for World Health Organization grading and could offer a prognostic imaging biomarker for nonenhancing gliomas.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
<meta name="citation_publisher" content="American Journal of Neuroradiology" />
<meta name="citation_publication_date" content="2016/01/01" />
<meta name="citation_mjid" content="ajnr;37/1/44" />
<meta name="citation_id" content="37/1/44" />
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<meta name="citation_issn" content="0195-6108" />
<meta name="citation_issn" content="1936-959X" />
<meta name="citation_doi" content="10.3174/ajnr.A4460" />
<meta name="citation_pmid" content="26381556" />
<meta name="citation_volume" content="37" />
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<meta name="citation_article_type" content="Research Article" />
<meta name="citation_section" content="ADULT BRAIN" />
<meta name="citation_firstpage" content="44" />
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<meta name="citation_author" content="K. Takano" />
<meta name="citation_author_institution" content="aFrom the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="M. Kinoshita" />
<meta name="citation_author_institution" content="aFrom the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="H. Arita" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="Y. Okita" />
<meta name="citation_author_institution" content="dDepartment of Neurosurgery (Y.O., Y.K., M.N., S.N.)" />
<meta name="citation_author" content="Y. Chiba" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author_institution" content="fDepartment of Neurosurgery (Y.C.), Kansai Rosai Hospital, Itami, Japan" />
<meta name="citation_author" content="N. Kagawa" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="Y. Fujimoto" />
<meta name="citation_author_institution" content="gDepartment of Neurosurgery (Y.F.), Osaka Neurological Institute, Osaka, Japan" />
<meta name="citation_author" content="H. Kishima" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="Y. Kanemura" />
<meta name="citation_author_institution" content="dDepartment of Neurosurgery (Y.O., Y.K., M.N., S.N.)" />
<meta name="citation_author_institution" content="eDivision of Regenerative Medicine (Y.K.), Institute for Clinical Research, Osaka National Hospital, National Hospital Organization, Osaka, Japan" />
<meta name="citation_author" content="M. Nonaka" />
<meta name="citation_author_institution" content="dDepartment of Neurosurgery (Y.O., Y.K., M.N., S.N.)" />
<meta name="citation_author_institution" content="hDepartment of Neurosurgery (M.N.), Kansai Medical University, Osaka, Japan." />
<meta name="citation_author" content="S. Nakajima" />
<meta name="citation_author_institution" content="dDepartment of Neurosurgery (Y.O., Y.K., M.N., S.N.)" />
<meta name="citation_author" content="E. Shimosegawa" />
<meta name="citation_author_institution" content="cNuclear Medicine and Tracer Kinetics (E.S., J.H.), Osaka University Graduate School of Medicine, Osaka, Japan" />
<meta name="citation_author" content="J. Hatazawa" />
<meta name="citation_author_institution" content="cNuclear Medicine and Tracer Kinetics (E.S., J.H.), Osaka University Graduate School of Medicine, Osaka, Japan" />
<meta name="citation_author" content="N. Hashimoto" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
<meta name="citation_author" content="T. Yoshimine" />
<meta name="citation_author_institution" content="bDepartments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)" />
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<meta name="twitter:title" content="Diagnostic and Prognostic Value of 11C-Methionine PET for Nonenhancing Gliomas" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Noninvasive radiologic evaluation of glioma can facilitate correct diagnosis and detection of malignant transformation. Although positron-emission tomography is considered valuable in the care of patients with gliomas, 18F-fluorodeoxyglucose and 11C-methionine have reportedly shown ambiguous results in terms of grading and prognostication. The present study compared the diagnostic and prognostic capabilities of diffusion tensor imaging, FDG, and 11C-methionine PET in nonenhancing gliomas.

MATERIALS AND METHODS: Thirty-five consecutive newly diagnosed, histologically confirmed nonenhancing gliomas that underwent both FDG and 11C-methionine PET were retrospectively investigated (23 grade II and 12 grade III gliomas). Apparent diffusion coefficient, fractional anisotropy, and tumor-to-normal tissue ratios of both FDG and 11C-methionine PET were compared between grade II and III gliomas. Prognostic values of these parameters were also tested by using progression-free survival.

RESULTS: Grade III gliomas showed significantly higher average tumor-to-normal tissue and maximum tumor2-to-normal tissue than grade II gliomas in 11C-methionine ( P = .013, P = .0017, respectively), but not in FDG-PET imaging. There was no significant difference in average ADC, minimum ADC, average fractional anisotropy, and maximum fractional anisotropy. 11C-methionine PET maximum tumor-to-normal tissue ratio of 2.0 was most suitable for detecting grade III gliomas among nonenhancing gliomas (sensitivity, 83.3%; specificity, 73.9%). Among patients not receiving any adjuvant therapy, median progression-free survival was 64.2 ± 7.2 months in patients with maximum tumor-to-normal tissue ratio of &lt;2.0 for 11C-methionine PET and 18.6 ± 6.9 months in patients with maximum tumor-to-normal tissue ratio of &gt;2.0 ( P = .0044).

CONCLUSIONS: 11C-methionine PET holds promise for World Health Organization grading and could offer a prognostic imaging biomarker for nonenhancing gliomas.

MET
:   11C-methionine
PFS
:   progression-free survival
T/N
:   tumor-to-normal tissue
T/Nave
:   average tumor-to-normal tissue
T/Nmax
:   maximum tumor-to-normal tissue" />
<meta name="og-title" property="og:title" content="Diagnostic and Prognostic Value of 11C-Methionine PET for Nonenhancing Gliomas" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/37/1/44" />
<meta name="og-site-name" property="og:site_name" content="American Journal of Neuroradiology" />
<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Noninvasive radiologic evaluation of glioma can facilitate correct diagnosis and detection of malignant transformation. Although positron-emission tomography is considered valuable in the care of patients with gliomas, 18F-fluorodeoxyglucose and 11C-methionine have reportedly shown ambiguous results in terms of grading and prognostication. The present study compared the diagnostic and prognostic capabilities of diffusion tensor imaging, FDG, and 11C-methionine PET in nonenhancing gliomas.

MATERIALS AND METHODS: Thirty-five consecutive newly diagnosed, histologically confirmed nonenhancing gliomas that underwent both FDG and 11C-methionine PET were retrospectively investigated (23 grade II and 12 grade III gliomas). Apparent diffusion coefficient, fractional anisotropy, and tumor-to-normal tissue ratios of both FDG and 11C-methionine PET were compared between grade II and III gliomas. Prognostic values of these parameters were also tested by using progression-free survival.

RESULTS: Grade III gliomas showed significantly higher average tumor-to-normal tissue and maximum tumor2-to-normal tissue than grade II gliomas in 11C-methionine ( P = .013, P = .0017, respectively), but not in FDG-PET imaging. There was no significant difference in average ADC, minimum ADC, average fractional anisotropy, and maximum fractional anisotropy. 11C-methionine PET maximum tumor-to-normal tissue ratio of 2.0 was most suitable for detecting grade III gliomas among nonenhancing gliomas (sensitivity, 83.3%; specificity, 73.9%). Among patients not receiving any adjuvant therapy, median progression-free survival was 64.2 ± 7.2 months in patients with maximum tumor-to-normal tissue ratio of &lt;2.0 for 11C-methionine PET and 18.6 ± 6.9 months in patients with maximum tumor-to-normal tissue ratio of &gt;2.0 ( P = .0044).

CONCLUSIONS: 11C-methionine PET holds promise for World Health Organization grading and could offer a prognostic imaging biomarker for nonenhancing gliomas.

MET
:   11C-methionine
PFS
:   progression-free survival
T/N
:   tumor-to-normal tissue
T/Nave
:   average tumor-to-normal tissue
T/Nmax
:   maximum tumor-to-normal tissue" />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node14192" data-node-nid="14192" id="top-node-14192--21337326874" data-pisa="ajnr;37/1/44" data-pisa-master="ajnr;ajnr.A4460" data-apath="/ajnr/37/1/44.atom" data-hw-author-tooltip-instance="highwire_author_tooltip"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-article-title-complete clearfix has-author-tooltip highwire-citation-highwire-article-top-a">
  
  
      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Research Article</span><span class="separator-pipe"></span><span  class="highwire-cite-metadata-art-cat highwire-cite-metadata"><span class="wrapper">ADULT BRAIN</span></span></div>
  
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      <h1 class="highwire-cite-title" id="page-title">Diagnostic and Prognostic Value of <sup>11</sup>C-Methionine PET for Nonenhancing Gliomas</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">K. Takano</span>, <span class="highwire-citation-author" data-delta="1">M. Kinoshita</span>, <span class="highwire-citation-author" data-delta="2">H. Arita</span>, <span class="highwire-citation-author" data-delta="3">Y. Okita</span>, <span class="highwire-citation-author" data-delta="4">Y. Chiba</span>, <span class="highwire-citation-author" data-delta="5">N. Kagawa</span>, <span class="highwire-citation-author" data-delta="6">Y. Fujimoto</span>, <span class="highwire-citation-author" data-delta="7">H. Kishima</span>, <span class="highwire-citation-author" data-delta="8">Y. Kanemura</span>, <span class="highwire-citation-author" data-delta="9">M. Nonaka</span>, <span class="highwire-citation-author" data-delta="10">S. Nakajima</span>, <span class="highwire-citation-author" data-delta="11">E. Shimosegawa</span>, <span class="highwire-citation-author" data-delta="12">J. Hatazawa</span>, <span class="highwire-citation-author" data-delta="13">N. Hashimoto</span> and <span class="highwire-citation-author" data-delta="14">T. Yoshimine</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">January 2016,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">37 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">44-50; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A4460 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-14192--21337326874" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">K. Takano </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan</div><div class='author-affiliation'><span class='nlm-sup'>b</span>Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=K.%2BTakano%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Takano%20K&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AK.%2BTakano%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">M. Kinoshita </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Neurosurgery (K.T., M.K.), Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan</div><div class='author-affiliation'><span class='nlm-sup'>b</span>Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=M.%2BKinoshita%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Kinoshita%20M&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AM.%2BKinoshita%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">H. Arita </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=H.%2BArita%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Arita%20H&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AH.%2BArita%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">Y. Okita </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>d</span>Department of Neurosurgery (Y.O., Y.K., M.N., S.N.)</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=Y.%2BOkita%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Okita%20Y&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AY.%2BOkita%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">Y. Chiba </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>Department of Neurosurgery (Y.C.), Kansai Rosai Hospital, Itami, Japan</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=Y.%2BChiba%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Chiba%20Y&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AY.%2BChiba%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-5"><div class="author-tooltip-name">N. Kagawa </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Departments of Neurosurgery (K.T., M.K., H.A., Y.C., N.K., H.K., N.H., T.Y.)</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=N.%2BKagawa%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Kagawa%20N&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AN.%2BKagawa%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-6"><div class="author-tooltip-name">Y. 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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 37</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 1 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Jan 2016 </div></div>
      
      
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      <div class="highwire-cite-title">Diagnostic and Prognostic Value of <sup>11</sup>C-Methionine PET for Nonenhancing Gliomas</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Takano</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Kinoshita</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Arita</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Okita</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Chiba</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Kagawa</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Fujimoto</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Kishima</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Kanemura</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Nonaka</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Nakajima</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">E.</span> <span class="nlm-surname">Shimosegawa</span></span>, <span class="highwire-citation-author" data-delta="12"><span class="nlm-given-names">J.</span> <span class="nlm-surname">Hatazawa</span></span>, <span class="highwire-citation-author" data-delta="13"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Hashimoto</span></span>, <span class="highwire-citation-author" data-delta="14"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Yoshimine</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-oa-ind highwire-cite-metadata"><i class="highwire-oa-indicator"></i> </span><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Jan 2016, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">37 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">44-50; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A4460 </span></div>
  
  
  
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      <div class="highwire-cite-title">Diagnostic and Prognostic Value of <sup>11</sup>C-Methionine PET for Nonenhancing Gliomas</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Takano</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Kinoshita</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Arita</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Okita</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Chiba</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Kagawa</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Fujimoto</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Kishima</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Kanemura</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Nonaka</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Nakajima</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">E.</span> <span class="nlm-surname">Shimosegawa</span></span>, <span class="highwire-citation-author" data-delta="12"><span class="nlm-given-names">J.</span> <span class="nlm-surname">Hatazawa</span></span>, <span class="highwire-citation-author" data-delta="13"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Hashimoto</span></span>, <span class="highwire-citation-author" data-delta="14"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Yoshimine</span></span></span></div>
  
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