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<meta name="DC.Title" content="Line Scan Diffusion Imaging of the Spine" />
<meta name="DC.Date" content="2003-01-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="Copyright © American Society of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Recent findings suggest that diffusion-weighted imaging might be an important adjunct to the diagnostic workup of disease processes in the spine, but physiological motion and the challenging magnetic environment make it difficult to perform reliable quantitative diffusion measurements. Multi-section line scan diffusion imaging of the spine was implemented and evaluated to provide quantitative diffusion measurements of vertebral bodies and intervertebral disks.

METHODS: Line scan diffusion imaging of 12 healthy study participants and three patients with benign vertebral compression fractures was performed to assess the potential of line scan diffusion imaging of the spinal column. In a subgroup of six participants, multiple b-value (5–3005 s/mm2) images were obtained to test for multi-exponential signal decay.

RESULTS: All images were diagnostic and of high quality. Mean diffusion values were (230 ± 83) × 10−6 mm2/s in the vertebral bodies, (1645 ± 213) × 10−6 mm2/s in the nuclei pulposi, (837 ± 318) × 10−6 mm2/s in the annuli fibrosi and ranged from 1019 × 10−6 mm2/s to 1972 × 10−6 mm2/s in benign compression fractures. The mean relative intra-participant variation of mean diffusivity among different vertebral segments (T10-L5) was 2.97%, whereas the relative difference in mean diffusivity among participants was 7.41% ( P &lt; .0001). The estimated measurement precision was &lt;2%. A bi-exponential diffusion attenuation was found only in vertebral bodies.

CONCLUSION: Line scan diffusion imaging is a robust and reliable method for imaging the spinal column. It does not suffer as strongly from susceptibility artifacts as does echo-planar imaging and is less susceptible to patient motion than are other multi-shot techniques. The different contributions from the water and fat fractions need to be considered in diffusion-weighted imaging of the vertebral bodies." />
<meta name="DC.Contributor" content="Roland Bammer" />
<meta name="DC.Contributor" content="Andreas M. Herneth" />
<meta name="DC.Contributor" content="Stephan E. Maier" />
<meta name="DC.Contributor" content="Kim Butts" />
<meta name="DC.Contributor" content="Rupert W. Prokesch" />
<meta name="DC.Contributor" content="Huy M. Do" />
<meta name="DC.Contributor" content="Scott W. Atlas" />
<meta name="DC.Contributor" content="Michael E. Moseley" />
<meta name="article:published_time" content="2003-01-01" />
<meta name="article:section" content="SPINE" />
<meta name="citation_title" content="Line Scan Diffusion Imaging of the Spine" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; Recent findings suggest that diffusion-weighted imaging might be an important adjunct to the diagnostic workup of disease processes in the spine, but physiological motion and the challenging magnetic environment make it difficult to perform reliable quantitative diffusion measurements. Multi-section line scan diffusion imaging of the spine was implemented and evaluated to provide quantitative diffusion measurements of vertebral bodies and intervertebral disks.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; Line scan diffusion imaging of 12 healthy study participants and three patients with benign vertebral compression fractures was performed to assess the potential of line scan diffusion imaging of the spinal column. In a subgroup of six participants, multiple b-value (5–3005 s/mm&lt;sup&gt;2&lt;/sup&gt;) images were obtained to test for multi-exponential signal decay.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; All images were diagnostic and of high quality. Mean diffusion values were (230 ± 83) × 10&lt;sup&gt;−6&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s in the vertebral bodies, (1645 ± 213) × 10&lt;sup&gt;−6&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s in the nuclei pulposi, (837 ± 318) × 10&lt;sup&gt;−6&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s in the annuli fibrosi and ranged from 1019 × 10&lt;sup&gt;−6&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s to 1972 × 10&lt;sup&gt;−6&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s in benign compression fractures. The mean relative intra-participant variation of mean diffusivity among different vertebral segments (T10-L5) was 2.97%, whereas the relative difference in mean diffusivity among participants was 7.41% (&lt;i&gt;P&lt;/i&gt; &amp;lt; .0001). The estimated measurement precision was &amp;lt;2%. A bi-exponential diffusion attenuation was found only in vertebral bodies.&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; Line scan diffusion imaging is a robust and reliable method for imaging the spinal column. It does not suffer as strongly from susceptibility artifacts as does echo-planar imaging and is less susceptible to patient motion than are other multi-shot techniques. The different contributions from the water and fat fractions need to be considered in diffusion-weighted imaging of the vertebral bodies.&lt;/p&gt;" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Recent findings suggest that diffusion-weighted imaging might be an important adjunct to the diagnostic workup of disease processes in the spine, but physiological motion and the challenging magnetic environment make it difficult to perform reliable quantitative diffusion measurements. Multi-section line scan diffusion imaging of the spine was implemented and evaluated to provide quantitative diffusion measurements of vertebral bodies and intervertebral disks.

METHODS: Line scan diffusion imaging of 12 healthy study participants and three patients with benign vertebral compression fractures was performed to assess the potential of line scan diffusion imaging of the spinal column. In a subgroup of six participants, multiple b-value (5–3005 s/mm2) images were obtained to test for multi-exponential signal decay.

RESULTS: All images were diagnostic and of high quality. Mean diffusion values were (230 ± 83) × 10−6 mm2/s in the vertebral bodies, (1645 ± 213) × 10−6 mm2/s in the nuclei pulposi, (837 ± 318) × 10−6 mm2/s in the annuli fibrosi and ranged from 1019 × 10−6 mm2/s to 1972 × 10−6 mm2/s in benign compression fractures. The mean relative intra-participant variation of mean diffusivity among different vertebral segments (T10-L5) was 2.97%, whereas the relative difference in mean diffusivity among participants was 7.41% ( P &lt; .0001). The estimated measurement precision was &lt;2%. A bi-exponential diffusion attenuation was found only in vertebral bodies.

CONCLUSION: Line scan diffusion imaging is a robust and reliable method for imaging the spinal column. It does not suffer as strongly from susceptibility artifacts as does echo-planar imaging and is less susceptible to patient motion than are other multi-shot techniques. The different contributions from the water and fat fractions need to be considered in diffusion-weighted imaging of the vertebral bodies." />
<meta name="og-title" property="og:title" content="Line Scan Diffusion Imaging of the Spine" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/24/1/5" />
<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: Recent findings suggest that diffusion-weighted imaging might be an important adjunct to the diagnostic workup of disease processes in the spine, but physiological motion and the challenging magnetic environment make it difficult to perform reliable quantitative diffusion measurements. Multi-section line scan diffusion imaging of the spine was implemented and evaluated to provide quantitative diffusion measurements of vertebral bodies and intervertebral disks.

METHODS: Line scan diffusion imaging of 12 healthy study participants and three patients with benign vertebral compression fractures was performed to assess the potential of line scan diffusion imaging of the spinal column. In a subgroup of six participants, multiple b-value (5–3005 s/mm2) images were obtained to test for multi-exponential signal decay.

RESULTS: All images were diagnostic and of high quality. Mean diffusion values were (230 ± 83) × 10−6 mm2/s in the vertebral bodies, (1645 ± 213) × 10−6 mm2/s in the nuclei pulposi, (837 ± 318) × 10−6 mm2/s in the annuli fibrosi and ranged from 1019 × 10−6 mm2/s to 1972 × 10−6 mm2/s in benign compression fractures. The mean relative intra-participant variation of mean diffusivity among different vertebral segments (T10-L5) was 2.97%, whereas the relative difference in mean diffusivity among participants was 7.41% ( P &lt; .0001). The estimated measurement precision was &lt;2%. A bi-exponential diffusion attenuation was found only in vertebral bodies.

CONCLUSION: Line scan diffusion imaging is a robust and reliable method for imaging the spinal column. It does not suffer as strongly from susceptibility artifacts as does echo-planar imaging and is less susceptible to patient motion than are other multi-shot techniques. The different contributions from the water and fat fractions need to be considered in diffusion-weighted imaging of the vertebral bodies." />
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<div id="hw-article-author-popups-top-node-10936--8837953323" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Roland Bammer </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=Roland%2BBammer%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=Bammer%20R&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%3ARoland%2BBammer%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">Andreas M. 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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">Roland</span> <span class="nlm-surname">Bammer</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Andreas M.</span> <span class="nlm-surname">Herneth</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Stephan E.</span> <span class="nlm-surname">Maier</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Kim</span> <span class="nlm-surname">Butts</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Rupert W.</span> <span class="nlm-surname">Prokesch</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Huy M.</span> <span class="nlm-surname">Do</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Scott W.</span> <span class="nlm-surname">Atlas</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Michael E.</span> <span class="nlm-surname">Moseley</span></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">Jan 2003, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">24 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">5-12; </span></div>
  
  
  
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