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<meta name="DC.Title" content="Assessment of Metastatic Cervical Adenopathy Using Dynamic Contrast-Enhanced MR Imaging" />
<meta name="DC.Date" content="2003-03-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="Copyright © American Society of Neuroradiology" />
<meta name="DC.AccessRights" content="restricted" />
<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Morphologic assessment by conventional imaging methods of lymph node metastases in patients with squamous cell carcinoma of the head and neck is, at best, insensitive. Doppler sonography has shown that lymph node metastases exhibit alterations in the number of vessels and blood flow. We assessed the ability of dynamic contrast-enhanced MR imaging to differentiate normal from diseased nodes in this patient population.

METHODS: Twenty-one patients with newly diagnosed squamous cell carcinoma and no previous treatment were studied with the use of a head and neck phased array surface coil. Anatomic imaging included high resolution T1-weighted, fat-saturated fast spin-echo T2-weighted, and contrast-enhanced T1-weighted imaging (0.99–1.32 mm3 voxels). The dynamic contrast-enhanced MR imaging was performed by using a 2D fast spoiled gradient recalled sequence with single dose bolus injection of contrast agent. Calculated values included time to peak, peak enhancement, maximum slope, and washout slope for the enhancement. All patients underwent neck dissection as part of their indicated treatment, and imaging results were correlated with pathologic findings.

RESULTS: Dynamic contrast-enhanced MR imaging and pathology comparisons were obtained for 68 nodes. There was significantly longer time to peak ( P &lt; .001), lower peak enhancement ( P &lt; .05), lower maximum slope ( P &lt; .01), and slower washout slope ( P &lt; .05) in the tumor-involved nodes compared with the normal nodes.

CONCLUSION: Analysis of dynamic contrast-enhanced MR imaging can differentiate normal from diseased lymph nodes in patients with squamous cell carcinoma of the head and neck." />
<meta name="DC.Contributor" content="Nancy J. Fischbein" />
<meta name="DC.Contributor" content="Susan M. Noworolski" />
<meta name="DC.Contributor" content="Roland G. Henry" />
<meta name="DC.Contributor" content="Michael J. Kaplan" />
<meta name="DC.Contributor" content="William P. Dillon" />
<meta name="DC.Contributor" content="Sarah J. Nelson" />
<meta name="article:published_time" content="2003-03-01" />
<meta name="article:section" content="HEAD AND NECK" />
<meta name="citation_title" content="Assessment of Metastatic Cervical Adenopathy Using Dynamic Contrast-Enhanced MR Imaging" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; Morphologic assessment by conventional imaging methods of lymph node metastases in patients with squamous cell carcinoma of the head and neck is, at best, insensitive. Doppler sonography has shown that lymph node metastases exhibit alterations in the number of vessels and blood flow. We assessed the ability of dynamic contrast-enhanced MR imaging to differentiate normal from diseased nodes in this patient population.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; Twenty-one patients with newly diagnosed squamous cell carcinoma and no previous treatment were studied with the use of a head and neck phased array surface coil. Anatomic imaging included high resolution T1-weighted, fat-saturated fast spin-echo T2-weighted, and contrast-enhanced T1-weighted imaging (0.99–1.32 mm&lt;sup&gt;3&lt;/sup&gt; voxels). The dynamic contrast-enhanced MR imaging was performed by using a 2D fast spoiled gradient recalled sequence with single dose bolus injection of contrast agent. Calculated values included time to peak, peak enhancement, maximum slope, and washout slope for the enhancement. All patients underwent neck dissection as part of their indicated treatment, and imaging results were correlated with pathologic findings.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; Dynamic contrast-enhanced MR imaging and pathology comparisons were obtained for 68 nodes. There was significantly longer time to peak (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), lower peak enhancement (&lt;i&gt;P&lt;/i&gt; &amp;lt; .05), lower maximum slope (&lt;i&gt;P&lt;/i&gt; &amp;lt; .01), and slower washout slope (&lt;i&gt;P&lt;/i&gt; &amp;lt; .05) in the tumor-involved nodes compared with the normal nodes.&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; Analysis of dynamic contrast-enhanced MR imaging can differentiate normal from diseased lymph nodes in patients with squamous cell carcinoma of the head and neck.&lt;/p&gt;" />
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<meta name="citation_publication_date" content="2003/03/01" />
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<meta name="twitter:title" content="Assessment of Metastatic Cervical Adenopathy Using Dynamic Contrast-Enhanced MR Imaging" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Morphologic assessment by conventional imaging methods of lymph node metastases in patients with squamous cell carcinoma of the head and neck is, at best, insensitive. Doppler sonography has shown that lymph node metastases exhibit alterations in the number of vessels and blood flow. We assessed the ability of dynamic contrast-enhanced MR imaging to differentiate normal from diseased nodes in this patient population.

METHODS: Twenty-one patients with newly diagnosed squamous cell carcinoma and no previous treatment were studied with the use of a head and neck phased array surface coil. Anatomic imaging included high resolution T1-weighted, fat-saturated fast spin-echo T2-weighted, and contrast-enhanced T1-weighted imaging (0.99–1.32 mm3 voxels). The dynamic contrast-enhanced MR imaging was performed by using a 2D fast spoiled gradient recalled sequence with single dose bolus injection of contrast agent. Calculated values included time to peak, peak enhancement, maximum slope, and washout slope for the enhancement. All patients underwent neck dissection as part of their indicated treatment, and imaging results were correlated with pathologic findings.

RESULTS: Dynamic contrast-enhanced MR imaging and pathology comparisons were obtained for 68 nodes. There was significantly longer time to peak ( P &lt; .001), lower peak enhancement ( P &lt; .05), lower maximum slope ( P &lt; .01), and slower washout slope ( P &lt; .05) in the tumor-involved nodes compared with the normal nodes.

CONCLUSION: Analysis of dynamic contrast-enhanced MR imaging can differentiate normal from diseased lymph nodes in patients with squamous cell carcinoma of the head and neck." />
<meta name="og-title" property="og:title" content="Assessment of Metastatic Cervical Adenopathy Using Dynamic Contrast-Enhanced MR Imaging" />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Morphologic assessment by conventional imaging methods of lymph node metastases in patients with squamous cell carcinoma of the head and neck is, at best, insensitive. Doppler sonography has shown that lymph node metastases exhibit alterations in the number of vessels and blood flow. We assessed the ability of dynamic contrast-enhanced MR imaging to differentiate normal from diseased nodes in this patient population.

METHODS: Twenty-one patients with newly diagnosed squamous cell carcinoma and no previous treatment were studied with the use of a head and neck phased array surface coil. Anatomic imaging included high resolution T1-weighted, fat-saturated fast spin-echo T2-weighted, and contrast-enhanced T1-weighted imaging (0.99–1.32 mm3 voxels). The dynamic contrast-enhanced MR imaging was performed by using a 2D fast spoiled gradient recalled sequence with single dose bolus injection of contrast agent. Calculated values included time to peak, peak enhancement, maximum slope, and washout slope for the enhancement. All patients underwent neck dissection as part of their indicated treatment, and imaging results were correlated with pathologic findings.

RESULTS: Dynamic contrast-enhanced MR imaging and pathology comparisons were obtained for 68 nodes. There was significantly longer time to peak ( P &lt; .001), lower peak enhancement ( P &lt; .05), lower maximum slope ( P &lt; .01), and slower washout slope ( P &lt; .05) in the tumor-involved nodes compared with the normal nodes.

CONCLUSION: Analysis of dynamic contrast-enhanced MR imaging can differentiate normal from diseased lymph nodes in patients with squamous cell carcinoma of the head and neck." />
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      <div class="highwire-cite-title">Assessment of Metastatic Cervical Adenopathy Using Dynamic Contrast-Enhanced MR Imaging</div>  
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