“Synthetic” Comets: A New Look at Lung Sonography
Abstract Ultrasound interstitial syndrome is an echographic pattern of the lung characterized by the presence of multiple acoustic artifacts called “comets” or B-lines. It correlates to increase in extravascular lung water and to interstitial lung disease. From the physical and genetic point of view...
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| Veröffentlicht in: | Ultrasound in medicine & biology 2011-11, Vol.37 (11), p.1762-1770 |
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| creator | Soldati, Gino Giunta, Valeria Sher, Sara Melosi, Francesca Dini, Claudia |
| description | Abstract Ultrasound interstitial syndrome is an echographic pattern of the lung characterized by the presence of multiple acoustic artifacts called “comets” or B-lines. It correlates to increase in extravascular lung water and to interstitial lung disease. From the physical and genetic point of view, the characteristics and the entity of this correlation have not yet been studied. The purpose of this study was to extrapolate past observations and demonstrate how comets or B-lines are artifactual images whose formation is linked to ultrasound interactions on discretely aerated tissues of variable density. Echographic comets were studied by scanning a wet synthetic, partially aerated polyurethane sponge (phantom). Density of the phantom in different drying phases was measured and correlated to the presence of echographic artifacts. Artifacts (comets) showed a different concentration from a completely white artifactual field to presence of rare comets. Their density correlates with porosity and geometry of the phantom. In our opinion, comets represent superficial, artifactual, density and geometry correlated phenomenon due to the acoustic permeability of a broken (collapsed) specular reflector, normally present when the phantom is dry. |
| doi_str_mv | 10.1016/j.ultrasmedbio.2011.05.024 |
| format | Article |
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It correlates to increase in extravascular lung water and to interstitial lung disease. From the physical and genetic point of view, the characteristics and the entity of this correlation have not yet been studied. The purpose of this study was to extrapolate past observations and demonstrate how comets or B-lines are artifactual images whose formation is linked to ultrasound interactions on discretely aerated tissues of variable density. Echographic comets were studied by scanning a wet synthetic, partially aerated polyurethane sponge (phantom). Density of the phantom in different drying phases was measured and correlated to the presence of echographic artifacts. Artifacts (comets) showed a different concentration from a completely white artifactual field to presence of rare comets. Their density correlates with porosity and geometry of the phantom. In our opinion, comets represent superficial, artifactual, density and geometry correlated phenomenon due to the acoustic permeability of a broken (collapsed) specular reflector, normally present when the phantom is dry.</description><identifier>ISSN: 0301-5629</identifier><identifier>EISSN: 1879-291X</identifier><identifier>DOI: 10.1016/j.ultrasmedbio.2011.05.024</identifier><identifier>PMID: 21924815</identifier><identifier>CODEN: USMBA3</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Acoustics ; Analysis of Variance ; Biological and medical sciences ; Body Water ; Diagnosis ; Humans ; Image Enhancement - methods ; Image Interpretation, Computer-Assisted - methods ; Investigative techniques, diagnostic techniques (general aspects) ; Lung ; Lung Diseases, Interstitial - diagnostic imaging ; Medical sciences ; Miscellaneous. Technology ; Phantoms, Imaging ; Pneumology ; Polyurethanes ; Radiology ; Respiratory system : syndromes and miscellaneous diseases ; Ultrasonic investigative techniques ; Ultrasonography ; Ultrasound</subject><ispartof>Ultrasound in medicine & biology, 2011-11, Vol.37 (11), p.1762-1770</ispartof><rights>World Federation for Ultrasound in Medicine & Biology</rights><rights>2011 World Federation for Ultrasound in Medicine & Biology</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-219d7789dcd4303e21644ef4aa965e25fcfc9f940421882f3f9f769cab10ec3e3</citedby><cites>FETCH-LOGICAL-c464t-219d7789dcd4303e21644ef4aa965e25fcfc9f940421882f3f9f769cab10ec3e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0301562911002869$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24694372$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21924815$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Soldati, Gino</creatorcontrib><creatorcontrib>Giunta, Valeria</creatorcontrib><creatorcontrib>Sher, Sara</creatorcontrib><creatorcontrib>Melosi, Francesca</creatorcontrib><creatorcontrib>Dini, Claudia</creatorcontrib><title>“Synthetic” Comets: A New Look at Lung Sonography</title><title>Ultrasound in medicine & biology</title><addtitle>Ultrasound Med Biol</addtitle><description>Abstract Ultrasound interstitial syndrome is an echographic pattern of the lung characterized by the presence of multiple acoustic artifacts called “comets” or B-lines. It correlates to increase in extravascular lung water and to interstitial lung disease. From the physical and genetic point of view, the characteristics and the entity of this correlation have not yet been studied. The purpose of this study was to extrapolate past observations and demonstrate how comets or B-lines are artifactual images whose formation is linked to ultrasound interactions on discretely aerated tissues of variable density. Echographic comets were studied by scanning a wet synthetic, partially aerated polyurethane sponge (phantom). Density of the phantom in different drying phases was measured and correlated to the presence of echographic artifacts. Artifacts (comets) showed a different concentration from a completely white artifactual field to presence of rare comets. Their density correlates with porosity and geometry of the phantom. In our opinion, comets represent superficial, artifactual, density and geometry correlated phenomenon due to the acoustic permeability of a broken (collapsed) specular reflector, normally present when the phantom is dry.</description><subject>Acoustics</subject><subject>Analysis of Variance</subject><subject>Biological and medical sciences</subject><subject>Body Water</subject><subject>Diagnosis</subject><subject>Humans</subject><subject>Image Enhancement - methods</subject><subject>Image Interpretation, Computer-Assisted - methods</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Lung</subject><subject>Lung Diseases, Interstitial - diagnostic imaging</subject><subject>Medical sciences</subject><subject>Miscellaneous. Technology</subject><subject>Phantoms, Imaging</subject><subject>Pneumology</subject><subject>Polyurethanes</subject><subject>Radiology</subject><subject>Respiratory system : syndromes and miscellaneous diseases</subject><subject>Ultrasonic investigative techniques</subject><subject>Ultrasonography</subject><subject>Ultrasound</subject><issn>0301-5629</issn><issn>1879-291X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc1uEzEQxy0EoqHwCmiFhDjtMv5Y77oHpCqUDymCQ0DiZjnecet0sw72LlVufRB4uT4JjhI-xInTHPyb-Y9_Q8gzChUFKl-uq6kfo0kb7FY-VAworaCugIl7ZEbbRpVM0S_3yQw40LKWTJ2QRymtAaCRvHlIThhVTLS0npH67vb7cjeMVzh6e3f7o5iHDY7prDgvPuBNsQjhujBjsZiGy2IZhnAZzfZq95g8cKZP-ORYT8nnNxef5u_Kxce37-fni9IKKcYyx3RN06rOdoIDR0alEOiEMUrWyGpnnVVOCRCMti1z3CnXSGXNigJajvyUvDjM3cbwdcI06o1PFvveDBimpBWAzH9s20yeHUgbQ0oRnd5GvzFxpynovTW91n9b03trGmqdreXmp8eYaZWff7f-0pSB50fAJGt6F81gffrDCakEb1jmXh84zFK-eYw6WY-Dxc5HtKPugv-_fV79M8b2fvA5-Rp3mNZhikPWrqlOTINe7u-8PzOlAKyViv8EsQenBg</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>Soldati, Gino</creator><creator>Giunta, Valeria</creator><creator>Sher, Sara</creator><creator>Melosi, Francesca</creator><creator>Dini, Claudia</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20111101</creationdate><title>“Synthetic” Comets: A New Look at Lung Sonography</title><author>Soldati, Gino ; Giunta, Valeria ; Sher, Sara ; Melosi, Francesca ; Dini, Claudia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-219d7789dcd4303e21644ef4aa965e25fcfc9f940421882f3f9f769cab10ec3e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Acoustics</topic><topic>Analysis of Variance</topic><topic>Biological and medical sciences</topic><topic>Body Water</topic><topic>Diagnosis</topic><topic>Humans</topic><topic>Image Enhancement - methods</topic><topic>Image Interpretation, Computer-Assisted - methods</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Lung</topic><topic>Lung Diseases, Interstitial - diagnostic imaging</topic><topic>Medical sciences</topic><topic>Miscellaneous. Technology</topic><topic>Phantoms, Imaging</topic><topic>Pneumology</topic><topic>Polyurethanes</topic><topic>Radiology</topic><topic>Respiratory system : syndromes and miscellaneous diseases</topic><topic>Ultrasonic investigative techniques</topic><topic>Ultrasonography</topic><topic>Ultrasound</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soldati, Gino</creatorcontrib><creatorcontrib>Giunta, Valeria</creatorcontrib><creatorcontrib>Sher, Sara</creatorcontrib><creatorcontrib>Melosi, Francesca</creatorcontrib><creatorcontrib>Dini, Claudia</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Ultrasound in medicine & biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Soldati, Gino</au><au>Giunta, Valeria</au><au>Sher, Sara</au><au>Melosi, Francesca</au><au>Dini, Claudia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>“Synthetic” Comets: A New Look at Lung Sonography</atitle><jtitle>Ultrasound in medicine & biology</jtitle><addtitle>Ultrasound Med Biol</addtitle><date>2011-11-01</date><risdate>2011</risdate><volume>37</volume><issue>11</issue><spage>1762</spage><epage>1770</epage><pages>1762-1770</pages><issn>0301-5629</issn><eissn>1879-291X</eissn><coden>USMBA3</coden><abstract>Abstract Ultrasound interstitial syndrome is an echographic pattern of the lung characterized by the presence of multiple acoustic artifacts called “comets” or B-lines. It correlates to increase in extravascular lung water and to interstitial lung disease. From the physical and genetic point of view, the characteristics and the entity of this correlation have not yet been studied. The purpose of this study was to extrapolate past observations and demonstrate how comets or B-lines are artifactual images whose formation is linked to ultrasound interactions on discretely aerated tissues of variable density. Echographic comets were studied by scanning a wet synthetic, partially aerated polyurethane sponge (phantom). Density of the phantom in different drying phases was measured and correlated to the presence of echographic artifacts. Artifacts (comets) showed a different concentration from a completely white artifactual field to presence of rare comets. Their density correlates with porosity and geometry of the phantom. In our opinion, comets represent superficial, artifactual, density and geometry correlated phenomenon due to the acoustic permeability of a broken (collapsed) specular reflector, normally present when the phantom is dry.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>21924815</pmid><doi>10.1016/j.ultrasmedbio.2011.05.024</doi><tpages>9</tpages></addata></record> |
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| subjects | Acoustics Analysis of Variance Biological and medical sciences Body Water Diagnosis Humans Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Investigative techniques, diagnostic techniques (general aspects) Lung Lung Diseases, Interstitial - diagnostic imaging Medical sciences Miscellaneous. Technology Phantoms, Imaging Pneumology Polyurethanes Radiology Respiratory system : syndromes and miscellaneous diseases Ultrasonic investigative techniques Ultrasonography Ultrasound |
| title | “Synthetic” Comets: A New Look at Lung Sonography |
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