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<meta name="DC.Title" content="Techniques for Intracranial Stent Navigation in Patients with Tortuous Vessels" />
<meta name="DC.Date" content="2005-06-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: In some patients with stenosis of an intracranial artery, navigating the balloon or stent-delivery system is difficult of tortuous anatomy of the aortic arch, carotid arteries, or vertebral arteries Our purpose was to describe techniques of intracranial stent placement that help in navigating the stent-delivery system in tortuous vessels.

METHODS: Between May 1998 and June 2004, 73 symptomatic stenotic (&gt;50%) intracranial arteries were successfully treated with stent-assisted angioplasty. In 11 cases, standard techniques of navigating the stent-delivery system into the intended lesion failed because of vascular tortuosity. In these difficult cases, several techniques were used to overcome the tortuosity. Five lesions were located in the middle cerebral arteries, four were in the supraclinoid internal carotid arteries, and two were in the distal vertebral arteries.

RESULTS: In all difficult cases, stents were successfully placed in the intracranial artery by using several techniques: 1) waiting method in which we waited for 20–30 minutes after advancement of the microwire across the lesion, 2) the double-wire technique, and 3) the coaxial double–guiding catheter technique. The waiting method made smooth stent navigation possible in five cases, the double-wire technique was successful in four cases, and the coaxial double–guiding catheter technique was effective in two cases. No technique-related complications occurred.

CONCLUSION: In difficult cases in which standard techniques of navigating the stent-delivery system into the intended lesion fail because of vascular tortuosity, our techniques were useful methods for intracranial stent navigation." />
<meta name="DC.Contributor" content="Tae Hong Lee" />
<meta name="DC.Contributor" content="Chang Hwa Choi" />
<meta name="DC.Contributor" content="Kyung-Pil Park" />
<meta name="DC.Contributor" content="Sang Min Sung" />
<meta name="DC.Contributor" content="Sang Won Lee" />
<meta name="DC.Contributor" content="Byung-Hee Lee" />
<meta name="DC.Contributor" content="Dong Hyun Kim" />
<meta name="DC.Contributor" content="Hak Jin Kim" />
<meta name="DC.Contributor" content="Chang Won Kim" />
<meta name="DC.Contributor" content="Suk Kim" />
<meta name="article:published_time" content="2005-06-01" />
<meta name="article:section" content="INTERVENTIONAL" />
<meta name="citation_title" content="Techniques for Intracranial Stent Navigation in Patients with Tortuous Vessels" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; In some patients with stenosis of an intracranial artery, navigating the balloon or stent-delivery system is difficult of tortuous anatomy of the aortic arch, carotid arteries, or vertebral arteries Our purpose was to describe techniques of intracranial stent placement that help in navigating the stent-delivery system in tortuous vessels.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; Between May 1998 and June 2004, 73 symptomatic stenotic (&amp;gt;50%) intracranial arteries were successfully treated with stent-assisted angioplasty. In 11 cases, standard techniques of navigating the stent-delivery system into the intended lesion failed because of vascular tortuosity. In these difficult cases, several techniques were used to overcome the tortuosity. Five lesions were located in the middle cerebral arteries, four were in the supraclinoid internal carotid arteries, and two were in the distal vertebral arteries.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; In all difficult cases, stents were successfully placed in the intracranial artery by using several techniques: 1) waiting method in which we waited for 20–30 minutes after advancement of the microwire across the lesion, 2) the double-wire technique, and 3) the coaxial double–guiding catheter technique. The waiting method made smooth stent navigation possible in five cases, the double-wire technique was successful in four cases, and the coaxial double–guiding catheter technique was effective in two cases. No technique-related complications occurred.&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; In difficult cases in which standard techniques of navigating the stent-delivery system into the intended lesion fail because of vascular tortuosity, our techniques were useful methods for intracranial stent navigation.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
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<meta name="citation_publication_date" content="2005/06/01" />
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<meta name="citation_article_type" content="Research Article" />
<meta name="citation_section" content="INTERVENTIONAL" />
<meta name="citation_firstpage" content="1375" />
<meta name="citation_lastpage" content="1380" />
<meta name="citation_author" content="Tae Hong Lee" />
<meta name="citation_author" content="Chang Hwa Choi" />
<meta name="citation_author" content="Kyung-Pil Park" />
<meta name="citation_author" content="Sang Min Sung" />
<meta name="citation_author" content="Sang Won Lee" />
<meta name="citation_author" content="Byung-Hee Lee" />
<meta name="citation_author" content="Dong Hyun Kim" />
<meta name="citation_author" content="Hak Jin Kim" />
<meta name="citation_author" content="Chang Won Kim" />
<meta name="citation_author" content="Suk Kim" />
<meta name="twitter:title" content="Techniques for Intracranial Stent Navigation in Patients with Tortuous Vessels" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: In some patients with stenosis of an intracranial artery, navigating the balloon or stent-delivery system is difficult of tortuous anatomy of the aortic arch, carotid arteries, or vertebral arteries Our purpose was to describe techniques of intracranial stent placement that help in navigating the stent-delivery system in tortuous vessels.

METHODS: Between May 1998 and June 2004, 73 symptomatic stenotic (&gt;50%) intracranial arteries were successfully treated with stent-assisted angioplasty. In 11 cases, standard techniques of navigating the stent-delivery system into the intended lesion failed because of vascular tortuosity. In these difficult cases, several techniques were used to overcome the tortuosity. Five lesions were located in the middle cerebral arteries, four were in the supraclinoid internal carotid arteries, and two were in the distal vertebral arteries.

RESULTS: In all difficult cases, stents were successfully placed in the intracranial artery by using several techniques: 1) waiting method in which we waited for 20–30 minutes after advancement of the microwire across the lesion, 2) the double-wire technique, and 3) the coaxial double–guiding catheter technique. The waiting method made smooth stent navigation possible in five cases, the double-wire technique was successful in four cases, and the coaxial double–guiding catheter technique was effective in two cases. No technique-related complications occurred.

CONCLUSION: In difficult cases in which standard techniques of navigating the stent-delivery system into the intended lesion fail because of vascular tortuosity, our techniques were useful methods for intracranial stent navigation." />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: In some patients with stenosis of an intracranial artery, navigating the balloon or stent-delivery system is difficult of tortuous anatomy of the aortic arch, carotid arteries, or vertebral arteries Our purpose was to describe techniques of intracranial stent placement that help in navigating the stent-delivery system in tortuous vessels.

METHODS: Between May 1998 and June 2004, 73 symptomatic stenotic (&gt;50%) intracranial arteries were successfully treated with stent-assisted angioplasty. In 11 cases, standard techniques of navigating the stent-delivery system into the intended lesion failed because of vascular tortuosity. In these difficult cases, several techniques were used to overcome the tortuosity. Five lesions were located in the middle cerebral arteries, four were in the supraclinoid internal carotid arteries, and two were in the distal vertebral arteries.

RESULTS: In all difficult cases, stents were successfully placed in the intracranial artery by using several techniques: 1) waiting method in which we waited for 20–30 minutes after advancement of the microwire across the lesion, 2) the double-wire technique, and 3) the coaxial double–guiding catheter technique. The waiting method made smooth stent navigation possible in five cases, the double-wire technique was successful in four cases, and the coaxial double–guiding catheter technique was effective in two cases. No technique-related complications occurred.

CONCLUSION: In difficult cases in which standard techniques of navigating the stent-delivery system into the intended lesion fail because of vascular tortuosity, our techniques were useful methods for intracranial stent navigation." />
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      <h1 class="highwire-cite-title" id="page-title">Techniques for Intracranial Stent Navigation in Patients with Tortuous Vessels</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Tae Hong Lee</span>, <span class="highwire-citation-author" data-delta="1">Chang Hwa Choi</span>, <span class="highwire-citation-author" data-delta="2">Kyung-Pil Park</span>, <span class="highwire-citation-author" data-delta="3">Sang Min Sung</span>, <span class="highwire-citation-author" data-delta="4">Sang Won Lee</span>, <span class="highwire-citation-author" data-delta="5">Byung-Hee Lee</span>, <span class="highwire-citation-author" data-delta="6">Dong Hyun Kim</span>, <span class="highwire-citation-author" data-delta="7">Hak Jin Kim</span>, <span class="highwire-citation-author" data-delta="8">Chang Won Kim</span> and <span class="highwire-citation-author" data-delta="9">Suk Kim</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">June 2005,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">26 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1375-1380; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-2931--61580194191" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Tae Hong Lee </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=Tae%2BHong%2BLee%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=Lee%20TH&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%3ATae%2BHong%2BLee%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">Chang Hwa Choi </div><ul 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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 26</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 6 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Jun 2005 </div></div>
      
      
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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">Jun 2005, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">26 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1375-1380; </span></div>
  
  
  
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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">Jun 2005, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">26 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1375-1380; </span></div>
  
  
  
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