Prevalence of Dural Ectasia in Loeys-Dietz Syndrome: Comparison with Marfan Syndrome and Normal Controls
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{"title"=>"Prevalence of Dural Ectasia in Loeys-Dietz Syndrome: Comparison with Marfan Syndrome and Normal Controls", "type"=>"journal", "authors"=>[{"first_name"=>"Atsushi K.", "last_name"=>"Kono", "scopus_author_id"=>"24080646500"}, {"first_name"=>"Masahiro", "last_name"=>"Higashi", "scopus_author_id"=>"7102716545"}, {"first_name"=>"Hiroko", "last_name"=>"Morisaki", "scopus_author_id"=>"7102332857"}, {"first_name"=>"Takayuki", "last_name"=>"Morisaki", "scopus_author_id"=>"7102904906"}, {"first_name"=>"Hiroaki", "last_name"=>"Naito", "scopus_author_id"=>"7201588245"}, {"first_name"=>"Kazuro", "last_name"=>"Sugimura", "scopus_author_id"=>"35403532400"}], "year"=>2013, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"24086486", "sgr"=>"84884537555", "doi"=>"10.1371/journal.pone.0075264", "scopus"=>"2-s2.0-84884537555", "pui"=>"369883037", "issn"=>"19326203"}, "id"=>"ff571075-0888-3769-9d8b-6077ef22c34d", "abstract"=>"BACKGROUND AND PURPOSE: Dural ectasia is well recognized in Marfan syndrome (MFS) as one of the major diagnostic criteria, but the exact prevalence of dural ectasia is still unknown in Loeys-Dietz syndrome (LDS), which is a recently discovered connective tissue disease. In this study, we evaluated the prevalence of dural ectasia in LDS according by using qualitative and quantitative methods and compared our findings with those for with MFS and normal controls.\\n\\nMATERIAL AND METHODS: We retrospectively studied 10 LDS (6 males, 4 females, mean age 36.3 years) and 20 MFS cases (12 males, 8 females, mean age 37.1 years) and 20 controls (12 males, 8 females, mean age 36.1 years) both qualitatively and quantitatively using axial CT images and sagittal multi-planar reconstruction images of the lumbosacral region. For quantitative examination, we adopted two methods: method-1 (anteroposterior dural diameter of S1> L4) and method-2 (ratio of anteroposterior dural diameter/vertebral body diameter>cutoff values). The prevalence of dural ectasia among groups was compared by using Fisher's exact test and the Tukey-Kramer test.\\n\\nRESULTS: In LDS patients, the qualitative method showed 40% of dural ectasia, the quantitative method-1 50%, and the method-2 70%. In MFS patients, the corresponding prevalences were 50%, 75%, and 85%, and in controls, 0%, 0%, and 5%. Both LDS and MFS had a significantly wider dura than controls.\\n\\nCONCLUSIONS: While the prevalence of dural ectasia varied depending on differences in qualitative and quantitative methods, LDS as well as MFS, showed, regardless of method, a higher prevalence of dural ectasia than controls. This finding should help the differentiation of LDS from controls.", "link"=>"http://www.mendeley.com/research/prevalence-dural-ectasia-loeysdietz-syndrome-comparison-marfan-syndrome-normal-controls", "reader_count"=>12, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>1, "Student > Postgraduate"=>3, "Other"=>2, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Student > Master"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>1, "Student > Postgraduate"=>3, "Other"=>2, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Student > Master"=>1}, "reader_count_by_subject_area"=>{"Engineering"=>1, "Medicine and Dentistry"=>9, "Social Sciences"=>1, "Agricultural and Biological Sciences"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>9}, "Social Sciences"=>{"Social Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>1}}, "group_count"=>0}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1215354"], "description"=>"<p>Sagittal image of the normal dura (A). Coronal image of right lateral meningocele (arrow) (B). Axial image at S1 shows asymmetric dilatation of the dura (arrow) (C). In this case, visual inspection could detect dural ectasia, but quantitative evaluation could not.</p>", "links"=>[], "tags"=>["images", "46-year-old", "loeys-dietz"], "article_id"=>807829, "categories"=>["Biological Sciences"], "users"=>["Atsushi K. Kono", "Masahiro Higashi", "Hiroko Morisaki", "Takayuki Morisaki", "Hiroaki Naito", "Kazuro Sugimura"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0075264.g002", "stats"=>{"downloads"=>2, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_CT_images_of_46_year_old_female_with_Loeys_Dietz_syndrome_/807829", "title"=>"CT images of 46-year-old female with Loeys-Dietz syndrome.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-09-25 01:39:27"}
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  • {"files"=>["https://ndownloader.figshare.com/files/1215356"], "description"=>"<p>DSR, dural sac ratio; LDS, Loeys-Dietz syndrome; MFS, Marfan syndrome; DE, dural ectasia; NS, not significant; a, difference between LDS and MFS; b, difference between LDS and control; c, difference between MFS and control.</p><p>CI*, this column shows the confidence interval for significant differences.</p>", "links"=>[], "tags"=>["dsr"], "article_id"=>807831, "categories"=>["Biological Sciences"], "users"=>["Atsushi K. Kono", "Masahiro Higashi", "Hiroko Morisaki", "Takayuki Morisaki", "Hiroaki Naito", "Kazuro Sugimura"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0075264.t002", "stats"=>{"downloads"=>1, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_DSR_values_/807831", "title"=>"Mean DSR values.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-09-25 01:39:27"}

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Relative Metric

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