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<meta name="DC.Title" content="Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck" />
<meta name="DC.Identifier" content="10.3174/ajnr.A8529" />
<meta name="DC.Date" content="2024-10-09" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Diffusion-weighted imaging (DWI) using single-shot echo planar imaging (DW-EPI) is susceptible to distortions around air-filled cavities and dental fillings, typical for the head and neck area. Non-EPI, Split acquisition of fast spin echo signals for diffusion imaging (DWSPLICE) could reduce these distortions and enhance image quality, thereby potentially improving recurrence assessment in squamous cell carcinoma (SCC) of the head and neck region. This study evaluated whether DW-SPLICE is a viable alternative to DW-EPI through quantitative and qualitative analyses.

MATERIALS AND METHODS: The DW-SPLICE sequence was incorporated into the standard 3.0T head and neck MRI protocol with DW-EPI. Retrospective analysis was conducted on two subgroups: firstly benign or malignant lesions, and secondly post-treatment SCC recurrence. In both subgroups Image quality and distortion were scored by two independent radiologists, blinded for DW-technique, and evaluated using mixed-effect linear models. Lesion apparent diffusion coefficient (ADC) values were assessed with inter-class correlation (ICC) and Bland-Altman analyses. DWI’s delineation geometric similarity to T1-weighted post-contrast (T1Wc) MRI was evaluated using the Dice Similarity Coefficient (DSC) before and after registration. Recurrence in post-treatment SCC scans was evaluated by the same two radiologists blinded for DW-technique. Recurrence detection rates were then compared between DW-SPLICE and DW-EPI using mixed logistic regression at six months and at one-year post-scan follow-up data.

RESULTS: From August 2020 to January 2022, 55 benign or malignant lesion scans (55 patients) and 74 post-treatment SCC scans (66 patients) were analyzed. DW-SPLICE scored better on image quality and showed less overall distortion than DW-EPI (0.04&lt;p&lt;0.001). There was high ADC measurement reliability (ICC=0.93, p&lt;0.001), though a proportional bias was also observed (β=0.11, p=0.03), indicating the bias increases as ADC values rise. DWSPLICE exhibited greater geometric similarity to T1Wc before registration (DSC 0.63 vs 0.47, p&lt;0.001) and outperformed DW-EPI by more accurately identifying recurrences after one year (OR=0.96, p=0.05) but not after six months (OR=0.72, p=0.13).

CONCLUSIONS: DW-SPLICE surpasses DW-EPI on image distortion and quality and improves diagnostic reliability for detecting recurrent or residual SCC on 3T MRI of the HN. Consistent use of one method for follow-up is advised, as ADC values are not completely interchangeable. Integrating DW-SPLICE can significantly improve tumor assessments in clinical practice.

ABBREVIATIONS: ANTs = Advanced Normalization Tools; DSC = Dice Similarity Coefficient; DW-EPI = Diffusion-weighted single-shot echo planar imaging; DW-MS-EPI = Diffusion-weighted multi-shot echo planar imaging; DW-SPLICE = Diffusion-weighted split acquisition of fast spin echo signals for diffusion imaging; DW-TSE = Diffusion-weighted Turbo Spin Echo; ICC = Intraclass Correlation Coefficient; ROC = Receiver Operating Characteristic; SCC = Squamous cell carcinoma; T1WIc = T1 weighted imaging with gadolinium contrast." />
<meta name="DC.Contributor" content="Hedda J. van der Hulst" />
<meta name="DC.Contributor" content="Loes Braun" />
<meta name="DC.Contributor" content="Bram Westerink" />
<meta name="DC.Contributor" content="Georgios Agrotis" />
<meta name="DC.Contributor" content="Leon C. ter Beek" />
<meta name="DC.Contributor" content="Renaud Tissier" />
<meta name="DC.Contributor" content="Milad Ahmadian" />
<meta name="DC.Contributor" content="Roland M. Martens" />
<meta name="DC.Contributor" content="Jan W. Casselman" />
<meta name="DC.Contributor" content="Regina G.H. Beets-Tan" />
<meta name="DC.Contributor" content="Michiel W.M. van den Brekel" />
<meta name="DC.Contributor" content="Jonas A. Castelijns" />
<meta name="article:published_time" content="2024-10-09" />
<meta name="article:section" content="ORIGINAL RESEARCH" />
<meta name="citation_title" content="Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;ABSTRACT&lt;/h3&gt;
&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Diffusion-weighted imaging (DWI) using single-shot echo planar imaging (DW-EPI) is susceptible to distortions around air-filled cavities and dental fillings, typical for the head and neck area. Non-EPI, Split acquisition of fast spin echo signals for diffusion imaging (DWSPLICE) could reduce these distortions and enhance image quality, thereby potentially improving recurrence assessment in squamous cell carcinoma (SCC) of the head and neck region. This study evaluated whether DW-SPLICE is a viable alternative to DW-EPI through quantitative and qualitative analyses.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;The DW-SPLICE sequence was incorporated into the standard 3.0T head and neck MRI protocol with DW-EPI. Retrospective analysis was conducted on two subgroups: firstly benign or malignant lesions, and secondly post-treatment SCC recurrence. In both subgroups Image quality and distortion were scored by two independent radiologists, blinded for DW-technique, and evaluated using mixed-effect linear models. Lesion apparent diffusion coefficient (ADC) values were assessed with inter-class correlation (ICC) and Bland-Altman analyses. DWI’s delineation geometric similarity to T1-weighted post-contrast (T1Wc) MRI was evaluated using the Dice Similarity Coefficient (DSC) before and after registration. Recurrence in post-treatment SCC scans was evaluated by the same two radiologists blinded for DW-technique. Recurrence detection rates were then compared between DW-SPLICE and DW-EPI using mixed logistic regression at six months and at one-year post-scan follow-up data.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;From August 2020 to January 2022, 55 benign or malignant lesion scans (55 patients) and 74 post-treatment SCC scans (66 patients) were analyzed. DW-SPLICE scored better on image quality and showed less overall distortion than DW-EPI (0.04&amp;lt;p&amp;lt;0.001). There was high ADC measurement reliability (ICC=0.93, p&amp;lt;0.001), though a proportional bias was also observed (β=0.11, p=0.03), indicating the bias increases as ADC values rise. DWSPLICE exhibited greater geometric similarity to T1Wc before registration (DSC 0.63 vs 0.47, p&amp;lt;0.001) and outperformed DW-EPI by more accurately identifying recurrences after one year (OR=0.96, p=0.05) but not after six months (OR=0.72, p=0.13).&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;DW-SPLICE surpasses DW-EPI on image distortion and quality and improves diagnostic reliability for detecting recurrent or residual SCC on 3T MRI of the HN. Consistent use of one method for follow-up is advised, as ADC values are not completely interchangeable. Integrating DW-SPLICE can significantly improve tumor assessments in clinical practice.&lt;/p&gt;&lt;p&gt;ABBREVIATIONS: ANTs = Advanced Normalization Tools; DSC = Dice Similarity Coefficient; DW-EPI = Diffusion-weighted single-shot echo planar imaging; DW-MS-EPI = Diffusion-weighted multi-shot echo planar imaging; DW-SPLICE = Diffusion-weighted split acquisition of fast spin echo signals for diffusion imaging; DW-TSE = Diffusion-weighted Turbo Spin Echo; ICC = Intraclass Correlation Coefficient; ROC = Receiver Operating Characteristic; SCC = Squamous cell carcinoma; T1WIc = T1 weighted imaging with gadolinium contrast.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
<meta name="citation_publisher" content="American Journal of Neuroradiology" />
<meta name="citation_publication_date" content="2024/10/09" />
<meta name="citation_mjid" content="ajnr;ajnr.A8529v1" />
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<meta name="citation_article_type" content="Research Article" />
<meta name="citation_section" content="ORIGINAL RESEARCH" />
<meta name="citation_author" content="Hedda J. van der Hulst" />
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<meta name="citation_author_institution" content="GROW School for Oncology and Developmental Biology, University of Maastricht, Maastricht, The Netherlands." />
<meta name="citation_author_institution" content="Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Loes Braun" />
<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Bram Westerink" />
<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Georgios Agrotis" />
<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author_institution" content="Department of Radiology, University Hospital of Larissa, Thessaly, Greece" />
<meta name="citation_author" content="Leon C. ter Beek" />
<meta name="citation_author_institution" content="Department of Clinical Physics, The Netherlands Cancer Institute, Amsterdam, The Netherlands" />
<meta name="citation_author" content="Renaud Tissier" />
<meta name="citation_author_institution" content="Biostatistics Unit, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Milad Ahmadian" />
<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author_institution" content="Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author_institution" content="Amsterdam Center for Language and Communication, University of Amsterdam, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Roland M. Martens" />
<meta name="citation_author_institution" content="Department of Radiology and Nuclear Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Jan W. Casselman" />
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<meta name="citation_author_institution" content="Department of Radiology, AZ St Lucas Gent, Ghent, Belgium." />
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<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author_institution" content="GROW School for Oncology and Developmental Biology, University of Maastricht, Maastricht, The Netherlands." />
<meta name="citation_author_institution" content="Department of Regional Health Research, University of Southern Denmark, Odense, Denmark." />
<meta name="citation_author" content="Michiel W.M. van den Brekel" />
<meta name="citation_author_institution" content="Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="citation_author_institution" content="Department of Oral and Maxillofacial Surgery, Amsterdam University Medical Center, Amsterdam, The Netherlands." />
<meta name="citation_author" content="Jonas A. Castelijns" />
<meta name="citation_author_institution" content="Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands." />
<meta name="twitter:title" content="Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck" />
<meta name="twitter:card" content="summary" />
<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Diffusion-weighted imaging (DWI) using single-shot echo planar imaging (DW-EPI) is susceptible to distortions around air-filled cavities and dental fillings, typical for the head and neck area. Non-EPI, Split acquisition of fast spin echo signals for diffusion imaging (DWSPLICE) could reduce these distortions and enhance image quality, thereby potentially improving recurrence assessment in squamous cell carcinoma (SCC) of the head and neck region. This study evaluated whether DW-SPLICE is a viable alternative to DW-EPI through quantitative and qualitative analyses.

MATERIALS AND METHODS: The DW-SPLICE sequence was incorporated into the standard 3.0T head and neck MRI protocol with DW-EPI. Retrospective analysis was conducted on two subgroups: firstly benign or malignant lesions, and secondly post-treatment SCC recurrence. In both subgroups Image quality and distortion were scored by two independent radiologists, blinded for DW-technique, and evaluated using mixed-effect linear models. Lesion apparent diffusion coefficient (ADC) values were assessed with inter-class correlation (ICC) and Bland-Altman analyses. DWI’s delineation geometric similarity to T1-weighted post-contrast (T1Wc) MRI was evaluated using the Dice Similarity Coefficient (DSC) before and after registration. Recurrence in post-treatment SCC scans was evaluated by the same two radiologists blinded for DW-technique. Recurrence detection rates were then compared between DW-SPLICE and DW-EPI using mixed logistic regression at six months and at one-year post-scan follow-up data.

RESULTS: From August 2020 to January 2022, 55 benign or malignant lesion scans (55 patients) and 74 post-treatment SCC scans (66 patients) were analyzed. DW-SPLICE scored better on image quality and showed less overall distortion than DW-EPI (0.04&lt;p&lt;0.001). There was high ADC measurement reliability (ICC=0.93, p&lt;0.001), though a proportional bias was also observed (β=0.11, p=0.03), indicating the bias increases as ADC values rise. DWSPLICE exhibited greater geometric similarity to T1Wc before registration (DSC 0.63 vs 0.47, p&lt;0.001) and outperformed DW-EPI by more accurately identifying recurrences after one year (OR=0.96, p=0.05) but not after six months (OR=0.72, p=0.13).

CONCLUSIONS: DW-SPLICE surpasses DW-EPI on image distortion and quality and improves diagnostic reliability for detecting recurrent or residual SCC on 3T MRI of the HN. Consistent use of one method for follow-up is advised, as ADC values are not completely interchangeable. Integrating DW-SPLICE can significantly improve tumor assessments in clinical practice.

ABBREVIATIONS: ANTs = Advanced Normalization Tools; DSC = Dice Similarity Coefficient; DW-EPI = Diffusion-weighted single-shot echo planar imaging; DW-MS-EPI = Diffusion-weighted multi-shot echo planar imaging; DW-SPLICE = Diffusion-weighted split acquisition of fast spin echo signals for diffusion imaging; DW-TSE = Diffusion-weighted Turbo Spin Echo; ICC = Intraclass Correlation Coefficient; ROC = Receiver Operating Characteristic; SCC = Squamous cell carcinoma; T1WIc = T1 weighted imaging with gadolinium contrast." />
<meta name="og-title" property="og:title" content="Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/early/2024/10/09/ajnr.A8529" />
<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: Diffusion-weighted imaging (DWI) using single-shot echo planar imaging (DW-EPI) is susceptible to distortions around air-filled cavities and dental fillings, typical for the head and neck area. Non-EPI, Split acquisition of fast spin echo signals for diffusion imaging (DWSPLICE) could reduce these distortions and enhance image quality, thereby potentially improving recurrence assessment in squamous cell carcinoma (SCC) of the head and neck region. This study evaluated whether DW-SPLICE is a viable alternative to DW-EPI through quantitative and qualitative analyses.

MATERIALS AND METHODS: The DW-SPLICE sequence was incorporated into the standard 3.0T head and neck MRI protocol with DW-EPI. Retrospective analysis was conducted on two subgroups: firstly benign or malignant lesions, and secondly post-treatment SCC recurrence. In both subgroups Image quality and distortion were scored by two independent radiologists, blinded for DW-technique, and evaluated using mixed-effect linear models. Lesion apparent diffusion coefficient (ADC) values were assessed with inter-class correlation (ICC) and Bland-Altman analyses. DWI’s delineation geometric similarity to T1-weighted post-contrast (T1Wc) MRI was evaluated using the Dice Similarity Coefficient (DSC) before and after registration. Recurrence in post-treatment SCC scans was evaluated by the same two radiologists blinded for DW-technique. Recurrence detection rates were then compared between DW-SPLICE and DW-EPI using mixed logistic regression at six months and at one-year post-scan follow-up data.

RESULTS: From August 2020 to January 2022, 55 benign or malignant lesion scans (55 patients) and 74 post-treatment SCC scans (66 patients) were analyzed. DW-SPLICE scored better on image quality and showed less overall distortion than DW-EPI (0.04&lt;p&lt;0.001). There was high ADC measurement reliability (ICC=0.93, p&lt;0.001), though a proportional bias was also observed (β=0.11, p=0.03), indicating the bias increases as ADC values rise. DWSPLICE exhibited greater geometric similarity to T1Wc before registration (DSC 0.63 vs 0.47, p&lt;0.001) and outperformed DW-EPI by more accurately identifying recurrences after one year (OR=0.96, p=0.05) but not after six months (OR=0.72, p=0.13).

CONCLUSIONS: DW-SPLICE surpasses DW-EPI on image distortion and quality and improves diagnostic reliability for detecting recurrent or residual SCC on 3T MRI of the HN. Consistent use of one method for follow-up is advised, as ADC values are not completely interchangeable. Integrating DW-SPLICE can significantly improve tumor assessments in clinical practice.

ABBREVIATIONS: ANTs = Advanced Normalization Tools; DSC = Dice Similarity Coefficient; DW-EPI = Diffusion-weighted single-shot echo planar imaging; DW-MS-EPI = Diffusion-weighted multi-shot echo planar imaging; DW-SPLICE = Diffusion-weighted split acquisition of fast spin echo signals for diffusion imaging; DW-TSE = Diffusion-weighted Turbo Spin Echo; ICC = Intraclass Correlation Coefficient; ROC = Receiver Operating Characteristic; SCC = Squamous cell carcinoma; T1WIc = T1 weighted imaging with gadolinium contrast." />
<meta name="og-type" property="og:type" content="article" />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node111139--5" data-node-nid="111139" id="top-node-111139--61054857369" data-pisa="ajnr;ajnr.A8529v1" data-pisa-master="ajnr;ajnr.A8529" data-apath="/ajnr/early/2024/10/09/ajnr.A8529.atom" data-hw-author-tooltip-instance="highwire_author_tooltip"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-article-title-complete clearfix has-author-tooltip highwire-citation-highwire-article-top-a">
  
  
      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Research Article</span><span class="separator-pipe"></span><span  class="highwire-cite-metadata-art-cat highwire-cite-metadata"><span class="wrapper">ORIGINAL RESEARCH</span></span></div>
  
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      <h1 class="highwire-cite-title" id="page-title">Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Hedda J. van der Hulst</span>, <span class="highwire-citation-author" data-delta="1">Loes Braun</span>, <span class="highwire-citation-author" data-delta="2">Bram Westerink</span>, <span class="highwire-citation-author" data-delta="3">Georgios Agrotis</span>, <span class="highwire-citation-author" data-delta="4">Leon C. ter Beek</span>, <span class="highwire-citation-author" data-delta="5">Renaud Tissier</span>, <span class="highwire-citation-author" data-delta="6">Milad Ahmadian</span>, <span class="highwire-citation-author" data-delta="7">Roland M. Martens</span>, <span class="highwire-citation-author" data-delta="8">Jan W. Casselman</span>, <span class="highwire-citation-author" data-delta="9">Regina G.H. Beets-Tan</span>, <span class="highwire-citation-author" data-delta="10">Michiel W.M. van den Brekel</span> and <span class="highwire-citation-author" data-delta="11">Jonas A. Castelijns</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">October 2024,  </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">ajnr.A8529; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A8529 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-111139--61054857369" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Hedda J. van der Hulst </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span>Department of Radiology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.</div><div class='author-affiliation'><span class='nlm-sup'>2</span>GROW School for Oncology and Developmental Biology, University of Maastricht, Maastricht, The Netherlands.</div><div class='author-affiliation'><span class='nlm-sup'>3</span>Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute, Amsterdam, The Netherlands.</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=Hedda%2BJ.%2Bvan%2Bder%2BHulst%2B" target="_blank" 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Netherlands Cancer Institute, Amsterdam, The Netherlands.</div><div class='author-affiliation'><span class='nlm-sup'>4</span>Department of Radiology, University Hospital of Larissa, Thessaly, Greece</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=Georgios%2BAgrotis%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=Agrotis%20G&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%3AGeorgios%2BAgrotis%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div 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    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" data-highwire-cite-ref-tooltip-instance="highwire_reflinks_tooltip" class="content-block-markup" xmlns:xhtml="http://www.w3.org/1999/xhtml"><div class="article abstract-view "><span class="highwire-journal-article-marker-start"></span><div class="section abstract" id="abstract-1"><h2 class="">ABSTRACT</h2><div id="sec-1" class="subsection"><p id="p-2"><strong>BACKGROUND AND PURPOSE:</strong> Diffusion-weighted imaging (DWI) using single-shot echo planar imaging (DW-EPI) is susceptible to distortions around air-filled cavities and dental fillings, typical for the head and neck area. Non-EPI, Split acquisition of fast spin echo signals for diffusion imaging (DWSPLICE) could reduce these distortions and enhance image quality, thereby potentially improving recurrence assessment in squamous cell carcinoma (SCC) of the head and neck region. This study evaluated whether DW-SPLICE is a viable alternative to DW-EPI through quantitative and qualitative analyses.</p></div><div id="sec-2" class="subsection"><p id="p-3"><strong>MATERIALS AND METHODS:</strong> The DW-SPLICE sequence was incorporated into the standard 3.0T head and neck MRI protocol with DW-EPI. Retrospective analysis was conducted on two subgroups: firstly benign or malignant lesions, and secondly post-treatment SCC recurrence. In both subgroups Image quality and distortion were scored by two independent radiologists, blinded for DW-technique, and evaluated using mixed-effect linear models. Lesion apparent diffusion coefficient (ADC) values were assessed with inter-class correlation (ICC) and Bland-Altman analyses. DWI’s delineation geometric similarity to T1-weighted post-contrast (T1Wc) MRI was evaluated using the Dice Similarity Coefficient (DSC) before and after registration. Recurrence in post-treatment SCC scans was evaluated by the same two radiologists blinded for DW-technique. Recurrence detection rates were then compared between DW-SPLICE and DW-EPI using mixed logistic regression at six months and at one-year post-scan follow-up data.</p></div><div id="sec-3" class="subsection"><p id="p-4"><strong>RESULTS:</strong> From August 2020 to January 2022, 55 benign or malignant lesion scans (55 patients) and 74 post-treatment SCC scans (66 patients) were analyzed. DW-SPLICE scored better on image quality and showed less overall distortion than DW-EPI (0.04&lt;p&lt;0.001). There was high ADC measurement reliability (ICC=0.93, p&lt;0.001), though a proportional bias was also observed (β=0.11, p=0.03), indicating the bias increases as ADC values rise. DWSPLICE exhibited greater geometric similarity to T1Wc before registration (DSC 0.63 vs 0.47, p&lt;0.001) and outperformed DW-EPI by more accurately identifying recurrences after one year (OR=0.96, p=0.05) but not after six months (OR=0.72, p=0.13).</p></div><div id="sec-4" class="subsection"><p id="p-5"><strong>CONCLUSIONS:</strong> DW-SPLICE surpasses DW-EPI on image distortion and quality and improves diagnostic reliability for detecting recurrent or residual SCC on 3T MRI of the HN. Consistent use of one method for follow-up is advised, as ADC values are not completely interchangeable. Integrating DW-SPLICE can significantly improve tumor assessments in clinical practice.</p><p id="p-6">ABBREVIATIONS: ANTs = Advanced Normalization Tools; DSC = Dice Similarity Coefficient; DW-EPI = Diffusion-weighted single-shot echo planar imaging; DW-MS-EPI = Diffusion-weighted multi-shot echo planar imaging; DW-SPLICE = Diffusion-weighted split acquisition of fast spin echo signals for diffusion imaging; DW-TSE = Diffusion-weighted Turbo Spin Echo; ICC = Intraclass Correlation Coefficient; ROC = Receiver Operating Characteristic; SCC = Squamous cell carcinoma; T1WIc = T1 weighted imaging with gadolinium contrast.</p></div></div><div class="section fn-group" id="fn-group-1"><h2>Footnotes</h2><ul><li class="fn-conflict" id="fn-1"><p id="p-1">The authors declare no conflicts of interest related to the content of this article.</p></li></ul></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">© 2024 by American Journal of Neuroradiology</li></ul><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div></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">Hedda J.</span> <span class="nlm-surname">van der Hulst</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Loes</span> <span class="nlm-surname">Braun</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Bram</span> <span class="nlm-surname">Westerink</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Georgios</span> <span class="nlm-surname">Agrotis</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Leon C.</span> <span class="nlm-surname">ter Beek</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Renaud</span> <span class="nlm-surname">Tissier</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Milad</span> <span class="nlm-surname">Ahmadian</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Roland M.</span> <span class="nlm-surname">Martens</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Jan W.</span> <span class="nlm-surname">Casselman</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">Regina G.H.</span> <span class="nlm-surname">Beets-Tan</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">Michiel W.M.</span> <span class="nlm-surname">van den Brekel</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">Jonas A.</span> <span class="nlm-surname">Castelijns</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">Oct 2024, </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">ajnr.A8529; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A8529 </span></div>
  
  
  
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      <div class="highwire-cite-title">Comparison of Diffusion-weighted MRI using Singe-Shot Echo-planar Imaging (SS-EPI) and Split Acquisition of Fast Spin Echo Signal (SPLICE) Imaging, a non-EPI technique, in Tumors of the Head and Neck</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">Hedda J.</span> <span class="nlm-surname">van der Hulst</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Loes</span> <span class="nlm-surname">Braun</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Bram</span> <span class="nlm-surname">Westerink</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Georgios</span> <span class="nlm-surname">Agrotis</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Leon C.</span> <span class="nlm-surname">ter Beek</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Renaud</span> <span class="nlm-surname">Tissier</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Milad</span> <span class="nlm-surname">Ahmadian</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Roland M.</span> <span class="nlm-surname">Martens</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Jan W.</span> <span class="nlm-surname">Casselman</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">Regina G.H.</span> <span class="nlm-surname">Beets-Tan</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">Michiel W.M.</span> <span class="nlm-surname">van den Brekel</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">Jonas A.</span> <span class="nlm-surname">Castelijns</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">Oct 2024, </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">ajnr.A8529; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A8529 </span></div>
  
  
  
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