AB0739 Infrared thermography of big toe in raynaud’s phenomenon
Identifieur interne : 001025 ( Istex/Corpus ); précédent : 001024; suivant : 001026AB0739 Infrared thermography of big toe in raynaud’s phenomenon
Auteurs : M. J. Lim ; S. R. Kwon ; K. H. Jung ; K. Joo ; S.-G. Park ; W. ParkSource :
- Annals of the Rheumatic Diseases [ 0003-4967 ] ; 2013-06.
Abstract
Background The thermography measures blood flow indirectly by measuring skin surface temperature [1]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature. Objectives The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP). Methods Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls. Results Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, Fig. 1). Image/graphConclusions Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [2]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1st toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn. References Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27. La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55. Disclosure of Interest None Declared
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DOI: 10.1136/annrheumdis-2013-eular.3061
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title><author><name sortKey="Lim, M J" sort="Lim, M J" uniqKey="Lim M" first="M. J." last="Lim">M. J. Lim</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Kwon, S R" sort="Kwon, S R" uniqKey="Kwon S" first="S. R." last="Kwon">S. R. Kwon</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Jung, K H" sort="Jung, K H" uniqKey="Jung K" first="K. H." last="Jung">K. H. Jung</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Joo, K" sort="Joo, K" uniqKey="Joo K" first="K." last="Joo">K. Joo</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Park, S G" sort="Park, S G" uniqKey="Park S" first="S.-G." last="Park">S.-G. Park</name><affiliation><mods:affiliation>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</mods:affiliation></affiliation></author><author><name sortKey="Park, W" sort="Park, W" uniqKey="Park W" first="W." last="Park">W. Park</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:232781575B8639820830415BA53BB9595D5AF29D</idno><date when="2013" year="2013">2013</date><idno type="doi">10.1136/annrheumdis-2013-eular.3061</idno><idno type="url">https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001025</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001025</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title><author><name sortKey="Lim, M J" sort="Lim, M J" uniqKey="Lim M" first="M. J." last="Lim">M. J. Lim</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Kwon, S R" sort="Kwon, S R" uniqKey="Kwon S" first="S. R." last="Kwon">S. R. Kwon</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Jung, K H" sort="Jung, K H" uniqKey="Jung K" first="K. H." last="Jung">K. H. Jung</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Joo, K" sort="Joo, K" uniqKey="Joo K" first="K." last="Joo">K. Joo</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author><author><name sortKey="Park, S G" sort="Park, S G" uniqKey="Park S" first="S.-G." last="Park">S.-G. Park</name><affiliation><mods:affiliation>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</mods:affiliation></affiliation></author><author><name sortKey="Park, W" sort="Park, W" uniqKey="Park W" first="W." last="Park">W. Park</name><affiliation><mods:affiliation>Department of Rheumatology</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Annals of the Rheumatic Diseases</title><title level="j" type="abbrev">Ann Rheum Dis</title><idno type="ISSN">0003-4967</idno><idno type="eISSN">1468-2060</idno><imprint><publisher>BMJ Publishing Group Ltd and European League Against Rheumatism</publisher><date type="published" when="2013-06">2013-06</date><biblScope unit="volume">72</biblScope><biblScope unit="issue">Suppl 3</biblScope><biblScope unit="page" from="A1014">A1014</biblScope></imprint><idno type="ISSN">0003-4967</idno></series><idno type="istex">232781575B8639820830415BA53BB9595D5AF29D</idno><idno type="DOI">10.1136/annrheumdis-2013-eular.3061</idno><idno type="href">annrheumdis-72-A1014-2.pdf</idno><idno type="ArticleID">annrheumdis-2013-eular.3061</idno><idno type="local">annrheumdis;72/Suppl_3/A1014-b</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0003-4967</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Background The thermography measures blood flow indirectly by measuring skin surface temperature [1]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature. Objectives The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP). Methods Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls. Results Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, Fig. 1). Image/graphConclusions Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [2]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1st toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn. References Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27. La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55. Disclosure of Interest None Declared</div></front></TEI><istex><corpusName>bmj</corpusName><keywords><teeft><json:string>dorsal</json:string><json:string>palmar</json:string><json:string>pdus</json:string><json:string>gsus</json:string><json:string>synovitic</json:string><json:string>dorsal gsus</json:string><json:string>synovitic findings</json:string><json:string>supraspinatus</json:string><json:string>mastectomy</json:string><json:string>pdus findings</json:string><json:string>ultrasound</json:string><json:string>thermography</json:string><json:string>palmar approach</json:string><json:string>palmar gsus</json:string><json:string>shoulder pain</json:string><json:string>dorsal approach</json:string><json:string>infrared thermography</json:string><json:string>foot dorsum</json:string><json:string>concordance</json:string><json:string>subacromial bursitis</json:string><json:string>bicipital tenosynovitis</json:string><json:string>supraspinatus tendinopathy</json:string><json:string>humeral head</json:string><json:string>oncology department</json:string><json:string>dorsal pdus</json:string><json:string>dorsal side</json:string><json:string>raynaud phenomenon</json:string><json:string>temperature drop</json:string><json:string>longitudinal study</json:string><json:string>consecutive patients</json:string><json:string>time points</json:string><json:string>palmar pdus</json:string><json:string>rheumatic diseases</json:string><json:string>baseline</json:string></teeft></keywords><author><json:item><name>M. J. Lim</name><affiliations><json:string>Department of Rheumatology</json:string></affiliations></json:item><json:item><name>S. R. Kwon</name><affiliations><json:string>Department of Rheumatology</json:string></affiliations></json:item><json:item><name>K. H. Jung</name><affiliations><json:string>Department of Rheumatology</json:string></affiliations></json:item><json:item><name>K. Joo</name><affiliations><json:string>Department of Rheumatology</json:string></affiliations></json:item><json:item><name>S.-G. Park</name><affiliations><json:string>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</json:string></affiliations></json:item><json:item><name>W. Park</name><affiliations><json:string>Department of Rheumatology</json:string></affiliations></json:item></author><articleId><json:string>annrheumdis-2013-eular.3061</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>abstract</json:string></originalGenre><abstract>Background The thermography measures blood flow indirectly by measuring skin surface temperature [1]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature. Objectives The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP). Methods Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls. Results Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, Fig. 1). Image/graphConclusions Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [2]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1st toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn. References Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27. La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55. Disclosure of Interest None Declared</abstract><qualityIndicators><score>4.802</score><pdfVersion>1.4</pdfVersion><pdfPageSize>594.72 x 841.68 pts</pdfPageSize><refBibsNative>false</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>2110</abstractCharCount><pdfWordCount>1302</pdfWordCount><pdfCharCount>7945</pdfCharCount><pdfPageCount>1</pdfPageCount><abstractWordCount>322</abstractWordCount></qualityIndicators><title>AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title><genre><json:string>abstract</json:string></genre><host><title>Annals of the Rheumatic Diseases</title><language><json:string>unknown</json:string></language><issn><json:string>0003-4967</json:string></issn><eissn><json:string>1468-2060</json:string></eissn><publisherId><json:string>ard</json:string></publisherId><volume>72</volume><issue>Suppl 3</issue><pages><first>A1014</first></pages><genre><json:string>journal</json:string></genre></host><categories><wos><json:string>science</json:string><json:string>rheumatology</json:string></wos><scienceMetrix><json:string>health sciences</json:string><json:string>clinical medicine</json:string><json:string>arthritis & rheumatology</json:string></scienceMetrix><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences biologiques et medicales</json:string><json:string>sciences medicales</json:string></inist></categories><publicationDate>2013</publicationDate><copyrightDate>2013</copyrightDate><doi><json:string>10.1136/annrheumdis-2013-eular.3061</json:string></doi><id>232781575B8639820830415BA53BB9595D5AF29D</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title><respStmt><resp>Références bibliographiques récupérées via GROBID</resp><name resp="ISTEX-API">ISTEX-API (INIST-CNRS)</name></respStmt></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>BMJ Publishing Group Ltd and European League Against Rheumatism</publisher><availability><p>© 2013, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions</p></availability><date>2013</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title><author xml:id="author-1"><persName><forename type="first">M. J.</forename><surname>Lim</surname></persName><affiliation>Department of Rheumatology</affiliation></author><author xml:id="author-2"><persName><forename type="first">S. R.</forename><surname>Kwon</surname></persName><affiliation>Department of Rheumatology</affiliation></author><author xml:id="author-3"><persName><forename type="first">K. H.</forename><surname>Jung</surname></persName><affiliation>Department of Rheumatology</affiliation></author><author xml:id="author-4"><persName><forename type="first">K.</forename><surname>Joo</surname></persName><affiliation>Department of Rheumatology</affiliation></author><author xml:id="author-5"><persName><forename type="first">S.-G.</forename><surname>Park</surname></persName><affiliation>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</affiliation></author><author xml:id="author-6"><persName><forename type="first">W.</forename><surname>Park</surname></persName><affiliation>Department of Rheumatology</affiliation></author></analytic><monogr><title level="j">Annals of the Rheumatic Diseases</title><title level="j" type="abbrev">Ann Rheum Dis</title><idno type="pISSN">0003-4967</idno><idno type="eISSN">1468-2060</idno><imprint><publisher>BMJ Publishing Group Ltd and European League Against Rheumatism</publisher><date type="published" when="2013-06"></date><biblScope unit="volume">72</biblScope><biblScope unit="issue">Suppl 3</biblScope><biblScope unit="page" from="A1014">A1014</biblScope></imprint></monogr><idno type="istex">232781575B8639820830415BA53BB9595D5AF29D</idno><idno type="DOI">10.1136/annrheumdis-2013-eular.3061</idno><idno type="href">annrheumdis-72-A1014-2.pdf</idno><idno type="ArticleID">annrheumdis-2013-eular.3061</idno><idno type="local">annrheumdis;72/Suppl_3/A1014-b</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2013</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>Background The thermography measures blood flow indirectly by measuring skin surface temperature [1]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature. Objectives The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP). Methods Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls. Results Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, Fig. 1). Image/graphConclusions Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [2]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1st toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn. References Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27. La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55. Disclosure of Interest None Declared</p></abstract></profileDesc><revisionDesc><change when="2013-06">Published</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2017-01-19">References added</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="corpus bmj" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="no"</istex:xmlDeclaration><istex:docType PUBLIC="-//NLM//DTD Journal Archiving and Interchange DTD v2.3 20070202//EN" URI="archivearticle.dtd" name="istex:docType"></istex:docType><istex:document><article article-type="abstract" xml:lang="EN"><front><journal-meta><journal-id journal-id-type="hwp">annrheumdis</journal-id><journal-id journal-id-type="nlm-ta">Ann Rheum Dis</journal-id><journal-id journal-id-type="publisher-id">ard</journal-id><journal-title>Annals of the Rheumatic Diseases</journal-title><abbrev-journal-title abbrev-type="publisher">Ann Rheum Dis</abbrev-journal-title><abbrev-journal-title>Ann Rheum Dis</abbrev-journal-title><issn pub-type="ppub">0003-4967</issn><issn pub-type="epub">1468-2060</issn><publisher><publisher-name>BMJ Publishing Group Ltd and European League Against Rheumatism</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">annrheumdis-2013-eular.3061</article-id><article-id pub-id-type="doi">10.1136/annrheumdis-2013-eular.3061</article-id><article-id pub-id-type="other">annrheumdis;72/Suppl_3/A1014-b</article-id><article-id pub-id-type="other">annrheumdis;annrheumdis-2013-eular.3061</article-id><article-id pub-id-type="other">A1014.2</article-id><article-id pub-id-type="other">annrheumdis-2013-eular.3061</article-id><article-categories><subj-group subj-group-type="heading"><subject>Abstracts accepted for publication</subject><subj-group subj-group-type="heading"><subject>Diagnostics and imaging procedures</subject></subj-group></subj-group></article-categories><title-group><article-title>AB0739 Infrared thermography of big toe in raynaud’s phenomenon</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Lim</surname><given-names>M. J.</given-names></name><xref ref-type="aff" rid="AF00001"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Kwon</surname><given-names>S. R.</given-names></name><xref ref-type="aff" rid="AF00001"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Jung</surname><given-names>K. H.</given-names></name><xref ref-type="aff" rid="AF00001"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Joo</surname><given-names>K.</given-names></name><xref ref-type="aff" rid="AF00001"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Park</surname><given-names>S.-G.</given-names></name><xref ref-type="aff" rid="AF00002"><sup>2</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Park</surname><given-names>W.</given-names></name><xref ref-type="aff" rid="AF00001"><sup>1</sup></xref></contrib></contrib-group><aff id="AF00001"><sup>1</sup>Department of Rheumatology</aff><aff id="AF00002"><sup>2</sup>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</aff><pub-date pub-type="ppub"><month>6</month><year>2013</year></pub-date><volume>72</volume><volume-id pub-id-type="other">72</volume-id><volume-id pub-id-type="other">72</volume-id><issue>Suppl 3</issue><issue-id pub-id-type="other">annrheumdis;72/Suppl_3</issue-id><issue-id pub-id-type="other" content-type="supplement">Suppl_3</issue-id><issue-id pub-id-type="other">72/Suppl_3</issue-id><issue-title>Annual European Congress of Rheumatology EULAR abstracts 2013, 12–15 June 2013, Spain</issue-title><fpage seq="2">A1014</fpage><permissions><copyright-statement>© 2013, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions</copyright-statement><copyright-year>2013</copyright-year></permissions><self-uri content-type="pdf" xlink:role="full-text" xlink:href="annrheumdis-72-A1014-2.pdf"></self-uri><abstract><sec><title>Background</title><p>The thermography measures blood flow indirectly by measuring skin surface temperature [<xref ref-type="other" rid="bib07391">1</xref>]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature.</p></sec><sec><title>Objectives</title><p>The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP).</p></sec><sec><title>Methods</title><p>Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls.</p></sec><sec><title>Results</title><p>Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, <xref ref-type="fig" rid="F1">Fig. 1</xref>).</p></sec><sec><title>Image/graph</title><fig id="F1" position="float"><graphic xlink:href="annrheumdis-72-A1014-2-F1.jpg" alt-version="no" position="float" xlink:type="simple"></graphic></fig></sec><sec><title>Conclusions</title><p>Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [<xref ref-type="other" rid="bib07392">2</xref>]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1<sup>st</sup> toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn.</p></sec><sec><title>References</title><p><list list-type="order"><list-item><p id="bib07391"><italic>Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27.</italic></p></list-item><list-item><p id="bib07392"><italic>La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55.</italic></p></list-item></list></p></sec><sec><title>Disclosure of Interest</title><p>None Declared</p></sec></abstract></article-meta></front></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>AB0739 Infrared thermography of big toe in raynaud’s phenomenon</title></titleInfo><name type="personal"><namePart type="given">M. J.</namePart><namePart type="family">Lim</namePart><affiliation>Department of Rheumatology</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">S. R.</namePart><namePart type="family">Kwon</namePart><affiliation>Department of Rheumatology</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">K. H.</namePart><namePart type="family">Jung</namePart><affiliation>Department of Rheumatology</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">K.</namePart><namePart type="family">Joo</namePart><affiliation>Department of Rheumatology</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">S.-G.</namePart><namePart type="family">Park</namePart><affiliation>Occupational and Environmental medicine, Inha University Hospital, Incheon, Korea, Republic Of</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">W.</namePart><namePart type="family">Park</namePart><affiliation>Department of Rheumatology</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="abstract" displayLabel="abstract"></genre><originInfo><publisher>BMJ Publishing Group Ltd and European League Against Rheumatism</publisher><dateIssued encoding="w3cdtf">2013-06</dateIssued><copyrightDate encoding="w3cdtf">2013</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>Background The thermography measures blood flow indirectly by measuring skin surface temperature [1]. The characteristic of Raynaud phenomenon is cold-induced vasoconstriction in distal extremities which in turn, lowers skin temperature. Objectives The aim of this study was to determine whether the infrared thermography on hands and feet is useful for diagnosis of Raynaud’s phenomenon (RP). Methods Fifty-seven patients with RP (primary RP, n=33; secondary RP, n=24) and 120 healthy volunteers were recruited. After acclimation to room temperature for 30 minutes, patients were evaluated by thermal imaging of the palmar aspects of hands and dorsal aspects of feet. Temperature drop from palm (center) to each finger and from foot dorsum (center) to each toe were compared between RP patients and controls. Results Temperature drop from palm to fingers and from foot dorsum to toes differed significantly between RP patients and controls. Area under the curve analysis showed that the temperature difference drop in 1st (big) toe (cutoff value: 3.11°C) best differentiated RP patients from controls (sensitivity : 72% -74%, specificity : 65 - 67%, Fig. 1). Image/graphConclusions Thermographic assessment of the skin temperature drop from the foot dorsum to 1st toe is useful for diagnosing RP. It was previously reported that about 90% of patients presented with features of RP of the feet [2]. Thus it clearly indicates that infrared thermography of the feet as the initial workup of Raynaud phenomenon could provide reliable data for diagnosis. In particular, the 1st toe provided the best thermographic parameter for diagnosis of RP among toes. The 1st toe is larger in size and has more obvious boundaries in imaging, which allows confident location for regions of interest to be drawn. References Jones BF. A reappraisal of the use of infrared thermal image analysis in medicine. IEEE Transactions Med Imaging 1998;17:1019–27. La Montagna G et al. Foot involvement in systemic sclerosis: a longitudinal study of 100 patients. Semin Arthritis Rheum. 2002;31:248-55. Disclosure of Interest None Declared</abstract><relatedItem type="host"><titleInfo><title>Annals of the Rheumatic Diseases</title></titleInfo><titleInfo type="abbreviated"><title>Ann Rheum Dis</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0003-4967</identifier><identifier type="eISSN">1468-2060</identifier><identifier type="PublisherID">ard</identifier><identifier type="PublisherID-hwp">annrheumdis</identifier><identifier type="PublisherID-nlm-ta">Ann Rheum Dis</identifier><part><date>2013</date><detail type="title"><title>Annual European Congress of Rheumatology EULAR abstracts 2013, 12–15 June 2013, Spain</title></detail><detail type="volume"><caption>vol.</caption><number>72</number></detail><detail type="issue"><caption>no.</caption><number>Suppl 3</number></detail><extent unit="pages"><start>A1014</start></extent></part></relatedItem><identifier type="istex">232781575B8639820830415BA53BB9595D5AF29D</identifier><identifier type="DOI">10.1136/annrheumdis-2013-eular.3061</identifier><identifier type="href">annrheumdis-72-A1014-2.pdf</identifier><identifier type="ArticleID">annrheumdis-2013-eular.3061</identifier><identifier type="local">annrheumdis;72/Suppl_3/A1014-b</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2013, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions</accessCondition><recordInfo><recordContentSource>BMJ</recordContentSource></recordInfo></mods></metadata><annexes><json:item><extension>jpeg</extension><original>true</original><mimetype>image/jpeg</mimetype><uri>https://api.istex.fr/document/232781575B8639820830415BA53BB9595D5AF29D/annexes/jpeg</uri></json:item></annexes><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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