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    	<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">November 1990,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">11 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1166; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-4928--61800898996" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">O Iwami </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Tenri Hospital, Nara, 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=O%2BIwami%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=Iwami%20O&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%3AO%2BIwami%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">J Kawamura </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Tenri Hospital, Nara, 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=J%2BKawamura%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=Kawamura%20J&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%3AJ%2BKawamura%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">S Hashimoto </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Tenri Hospital, Nara, 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=S%2BHashimoto%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=Hashimoto%20S&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%3AS%2BHashimoto%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">M Nakamura </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Tenri Hospital, Nara, 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=M%2BNakamura%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=Nakamura%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%2BNakamura%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">T Suenaga </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'>Tenri Hospital, Nara, 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=T%2BSuenaga%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=Suenaga%20T&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%3AT%2BSuenaga%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div></div></div>  </div>

  
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 11</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 6 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Nov 1990 </div></div>
      
      
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">O</span> <span class="nlm-surname">Iwami</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J</span> <span class="nlm-surname">Kawamura</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">S</span> <span class="nlm-surname">Hashimoto</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">M</span> <span class="nlm-surname">Nakamura</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">T</span> <span class="nlm-surname">Suenaga</span></span></span></div>
  
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">O</span> <span class="nlm-surname">Iwami</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J</span> <span class="nlm-surname">Kawamura</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">S</span> <span class="nlm-surname">Hashimoto</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">M</span> <span class="nlm-surname">Nakamura</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">T</span> <span class="nlm-surname">Suenaga</span></span></span></div>
  
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