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<meta name="DC.Title" content="Simultaneous Arteriovenous Shunting and Venous Congestion Identification in Dural Arteriovenous Fistulas Using Susceptibility-Weighted Imaging: Initial Experience" />
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<meta name="DC.Description" content="SUMMARY: In this short report, we describe the potential contribution of SWI in the noninvasive evaluation of DAVFs. SWI images were compared with DSA for the identification of the location of the fistulous point, the presence of CVR, and the presence of the PPP. In 5 of 6 patients, it was possible to identify the fistulous locations depicted as hyperintensity within venous structures. Cortical venous reflux was underestimated on SWI in 3 cases of robust CVR and not identified in 2 cases of less severe CVR. The PPP seen on angiograms correlated anatomically with increased number, caliber, and tortuosity of hypointense veins seen on SWI. Furthermore, SWI was superior to conventional MR imaging in the detection of these dilated veins. These preliminary results suggest an important role for SWI in the detection and assessment of the complex hemodynamics associated with DAVFs.

AP
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<meta name="twitter:title" content="Simultaneous Arteriovenous Shunting and Venous Congestion Identification in Dural Arteriovenous Fistulas Using Susceptibility-Weighted Imaging: Initial Experience" />
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<meta name="twitter:description" content="SUMMARY: In this short report, we describe the potential contribution of SWI in the noninvasive evaluation of DAVFs. SWI images were compared with DSA for the identification of the location of the fistulous point, the presence of CVR, and the presence of the PPP. In 5 of 6 patients, it was possible to identify the fistulous locations depicted as hyperintensity within venous structures. Cortical venous reflux was underestimated on SWI in 3 cases of robust CVR and not identified in 2 cases of less severe CVR. The PPP seen on angiograms correlated anatomically with increased number, caliber, and tortuosity of hypointense veins seen on SWI. Furthermore, SWI was superior to conventional MR imaging in the detection of these dilated veins. These preliminary results suggest an important role for SWI in the detection and assessment of the complex hemodynamics associated with DAVFs.

AP
:   anteroposterior
CVR
:   cortical venous reflux
DAVF
:   dural arteriovenous fistula
mIP
:   minimum intensity projection
MIP
:   maximum intensity projection
PPP
:   pseudophlebitic pattern" />
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<meta name="og-description" property="og:description" content="SUMMARY: In this short report, we describe the potential contribution of SWI in the noninvasive evaluation of DAVFs. SWI images were compared with DSA for the identification of the location of the fistulous point, the presence of CVR, and the presence of the PPP. In 5 of 6 patients, it was possible to identify the fistulous locations depicted as hyperintensity within venous structures. Cortical venous reflux was underestimated on SWI in 3 cases of robust CVR and not identified in 2 cases of less severe CVR. The PPP seen on angiograms correlated anatomically with increased number, caliber, and tortuosity of hypointense veins seen on SWI. Furthermore, SWI was superior to conventional MR imaging in the detection of these dilated veins. These preliminary results suggest an important role for SWI in the detection and assessment of the complex hemodynamics associated with DAVFs.

AP
:   anteroposterior
CVR
:   cortical venous reflux
DAVF
:   dural arteriovenous fistula
mIP
:   minimum intensity projection
MIP
:   maximum intensity projection
PPP
:   pseudophlebitic pattern" />
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    <title>Simultaneous Arteriovenous Shunting and Venous Congestion Identification in Dural Arteriovenous Fistulas Using Susceptibility-Weighted Imaging: Initial Experience | American Journal of Neuroradiology</title>  
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      <h1 class="highwire-cite-title" id="page-title">Simultaneous Arteriovenous Shunting and Venous Congestion Identification in Dural Arteriovenous Fistulas Using Susceptibility-Weighted Imaging: Initial Experience</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">L. Letourneau-Guillon</span> and <span class="highwire-citation-author" data-delta="1">T. Krings</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">February 2012,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">33 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">301-307; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A2777 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-11802--61316256645" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">L. Letourneau-Guillon </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=L.%2BLetourneau-Guillon%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=Letourneau-Guillon%20L&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%3AL.%2BLetourneau-Guillon%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">T. Krings </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.%2BKrings%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=Krings%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.%2BKrings%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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<p id="p-2"><strong>SUMMARY:</strong> In this short report, we describe the potential contribution of SWI in the noninvasive evaluation of DAVFs. SWI images were compared with DSA for the identification of the location of the fistulous point, the presence of CVR, and the presence of the PPP. In 5 of 6 patients, it was possible to identify the fistulous locations depicted as hyperintensity within venous structures. Cortical venous reflux was underestimated on SWI in 3 cases of robust CVR and not identified in 2 cases of less severe CVR. The PPP seen on angiograms correlated anatomically with increased number, caliber, and tortuosity of hypointense veins seen on SWI. Furthermore, SWI was superior to conventional MR imaging in the detection of these dilated veins. These preliminary results suggest an important role for SWI in the detection and assessment of the complex hemodynamics associated with DAVFs.</p>
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<h2>ABBREVIATIONS:</h2>
<dl id="def-list-1"><dt id="def-item-1">AP<span class="def-item-dt-sep"></span></dt><dd>anteroposterior<span class="def-item-dd-sep"></span></dd><dt id="def-item-2">CVR<span class="def-item-dt-sep"></span></dt><dd>cortical venous reflux<span class="def-item-dd-sep"></span></dd><dt id="def-item-3">DAVF<span class="def-item-dt-sep"></span></dt><dd>dural arteriovenous fistula<span class="def-item-dd-sep"></span></dd><dt id="def-item-4">mIP<span class="def-item-dt-sep"></span></dt><dd>minimum intensity projection<span class="def-item-dd-sep"></span></dd><dt id="def-item-5">MIP<span class="def-item-dt-sep"></span></dt><dd>maximum intensity projection<span class="def-item-dd-sep"></span></dd><dt id="def-item-6">PPP<span class="def-item-dt-sep"></span></dt><dd>pseudophlebitic pattern</dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">© 2012 by American Journal of Neuroradiology</li></ul><div class="license" id="license-1"><p id="p-1">Indicates open access to non-subscribers at <a href="http://www.ajnr.org">www.ajnr.org</a></p></div><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div><a href="http://ajnr-stage2.stage.highwire.org/content/33/2/301.full" class="hw-link hw-link-article-full-text" data-icon-position="" data-hide-link-title="0">View Full Text</a></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">L.</span> <span class="nlm-surname">Letourneau-Guillon</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Krings</span></span></span></div>
  
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      <div class="highwire-cite-title">Simultaneous Arteriovenous Shunting and Venous Congestion Identification in Dural Arteriovenous Fistulas Using Susceptibility-Weighted Imaging: Initial Experience</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">L.</span> <span class="nlm-surname">Letourneau-Guillon</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Krings</span></span></span></div>
  
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