3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging
MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (AS...
Gespeichert in:
Veröffentlicht in: | American journal of neuroradiology : AJNR 2009-02, Vol.30 (2), p.423-427 |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 427 |
---|---|
container_issue | 2 |
container_start_page | 423 |
container_title | American journal of neuroradiology : AJNR |
container_volume | 30 |
creator | Lehmann, P Saliou, G Brochart, C Page, C Deschepper, B Vallee, J.N Deramond, H |
description | MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (ASSET) single-shot echo-planar DWI and late postgadolinium T1-weighted MR imaging for the detection of postoperative recurrent middle ear cholesteatomas with a 3T imaging unit.
Thirty-five patients with suggested postoperative recurrent middle ear cholesteatoma underwent 3T MR imaging with PROPELLER DWI, ASSET echo-planar DWI, and late postgadolinium T1-weighted MR imaging. Three radiologists (2 seniors, 1 fellow) analyzed unlabeled images for visualization of recurrence. Interobserver and intraobserver agreement was assessed by using the Cohen kappa statistic test. Sensitivity, specificity, and predictive value were assessed for the 3 observers.
Nineteen recurrent cholesteatomas were diagnosed. PROPELLER interobserver agreement was very good (1, 0.89, 0.89) among the 3 observers. Intraobserver agreement between PROPELLER and T1-weighted imaging was very good to moderate (0.88, 0.57, 0.58). PROPELLER DWI provided less interobserver variability than other sequences, and the best sensitivity, specificity, and predictive value.
On a 3T imaging unit, multishot fast spin-echo PROPELLER DWI allows an easier detection of postoperative recurrent middle ear cholesteatoma than T1-weighted imaging by reducing artifacts and by its better contrast. DWI with PROPELLER is diagnostically robust and accurate. |
doi_str_mv | 10.3174/ajnr.A1352 |
format | Article |
fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7051389</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>66914038</sourcerecordid><originalsourceid>FETCH-LOGICAL-c436t-74090c1bb803f09ed4b69f4d5225d165dd1a8be2c41fdda123c7a0af42041d683</originalsourceid><addsrcrecordid>eNpVkV9v0zAUxSMEYmXwwgdAfoEHpAw7tpOYB6SpFJjUaVM1_rxZrn3TeEriYDut9sn4erhbtcKTLd2fz7k-J8teE3xGScU-qNvBn50Tyosn2YwIWuaCi19PsxkmguclwfVJ9iKEW4wxF1XxPDshtWC8EnyW_aE36HKFLnq1scMGuQZduxDdCF5FuwW0Aj15D0NEl9aYDtBCeTRvXQchgoquV-Ej-qG6Ce7fgrfOWK267g6tXFQRDLragu_UOO71r5VPM-jQ0g4Q0M7GFi2GVg06gcnLDSH6SUfrBvTZNs0U0i3_CXbT7qWOm77MnjWqC_DqcJ5m378sbubf8uXV14v5-TLXjJYxrxgWWJP1usa0wQIMW5eiYYYXBTek5MYQVa-h0Iw0xihSUF0prBpWYEZMWdPT7NOD7jitezA6JZF-IEdve-XvpFNW_j8ZbCs3bisrzAmtRRJ4dxDw7veUUpO9DRq6Tg3gpiDLUhCG6d7p_QOovQvBQ_NoQrDc9yz3Pcv7nhP85t-1juih2AS8PQAqpDoanyK24ZErCGElF_TItSninfUgQ58aSrJE7nY7imUhWUHpX8Fewvk</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>66914038</pqid></control><display><type>article</type><title>3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging</title><source>MEDLINE</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central</source><creator>Lehmann, P ; Saliou, G ; Brochart, C ; Page, C ; Deschepper, B ; Vallee, J.N ; Deramond, H</creator><creatorcontrib>Lehmann, P ; Saliou, G ; Brochart, C ; Page, C ; Deschepper, B ; Vallee, J.N ; Deramond, H</creatorcontrib><description>MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (ASSET) single-shot echo-planar DWI and late postgadolinium T1-weighted MR imaging for the detection of postoperative recurrent middle ear cholesteatomas with a 3T imaging unit.
Thirty-five patients with suggested postoperative recurrent middle ear cholesteatoma underwent 3T MR imaging with PROPELLER DWI, ASSET echo-planar DWI, and late postgadolinium T1-weighted MR imaging. Three radiologists (2 seniors, 1 fellow) analyzed unlabeled images for visualization of recurrence. Interobserver and intraobserver agreement was assessed by using the Cohen kappa statistic test. Sensitivity, specificity, and predictive value were assessed for the 3 observers.
Nineteen recurrent cholesteatomas were diagnosed. PROPELLER interobserver agreement was very good (1, 0.89, 0.89) among the 3 observers. Intraobserver agreement between PROPELLER and T1-weighted imaging was very good to moderate (0.88, 0.57, 0.58). PROPELLER DWI provided less interobserver variability than other sequences, and the best sensitivity, specificity, and predictive value.
On a 3T imaging unit, multishot fast spin-echo PROPELLER DWI allows an easier detection of postoperative recurrent middle ear cholesteatoma than T1-weighted imaging by reducing artifacts and by its better contrast. DWI with PROPELLER is diagnostically robust and accurate.</description><identifier>ISSN: 0195-6108</identifier><identifier>EISSN: 1936-959X</identifier><identifier>DOI: 10.3174/ajnr.A1352</identifier><identifier>PMID: 18945795</identifier><identifier>CODEN: AAJNDL</identifier><language>eng</language><publisher>Oak Brook, IL: Am Soc Neuroradiology</publisher><subject>Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biological and medical sciences ; Cerebrospinal fluid. Spinal cord. Spinal roots. Spinal nerves ; Child ; Cholesteatoma, Middle Ear - pathology ; Cholesteatoma, Middle Ear - surgery ; Diffusion Magnetic Resonance Imaging - methods ; Diffusion Magnetic Resonance Imaging - standards ; Diffusion Magnetic Resonance Imaging - statistics & numerical data ; Female ; Head & Neck ; Humans ; Investigative techniques, diagnostic techniques (general aspects) ; Magnetic Resonance Imaging ; Male ; Medical sciences ; Middle Aged ; Nervous system ; Neurosurgery ; Observer Variation ; Postoperative Complications - pathology ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; Recurrence ; Reproducibility of Results ; Sensitivity and Specificity ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Young Adult</subject><ispartof>American journal of neuroradiology : AJNR, 2009-02, Vol.30 (2), p.423-427</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright © American Society of Neuroradiology 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c436t-74090c1bb803f09ed4b69f4d5225d165dd1a8be2c41fdda123c7a0af42041d683</citedby><cites>FETCH-LOGICAL-c436t-74090c1bb803f09ed4b69f4d5225d165dd1a8be2c41fdda123c7a0af42041d683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7051389/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7051389/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21146593$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18945795$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lehmann, P</creatorcontrib><creatorcontrib>Saliou, G</creatorcontrib><creatorcontrib>Brochart, C</creatorcontrib><creatorcontrib>Page, C</creatorcontrib><creatorcontrib>Deschepper, B</creatorcontrib><creatorcontrib>Vallee, J.N</creatorcontrib><creatorcontrib>Deramond, H</creatorcontrib><title>3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging</title><title>American journal of neuroradiology : AJNR</title><addtitle>AJNR Am J Neuroradiol</addtitle><description>MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (ASSET) single-shot echo-planar DWI and late postgadolinium T1-weighted MR imaging for the detection of postoperative recurrent middle ear cholesteatomas with a 3T imaging unit.
Thirty-five patients with suggested postoperative recurrent middle ear cholesteatoma underwent 3T MR imaging with PROPELLER DWI, ASSET echo-planar DWI, and late postgadolinium T1-weighted MR imaging. Three radiologists (2 seniors, 1 fellow) analyzed unlabeled images for visualization of recurrence. Interobserver and intraobserver agreement was assessed by using the Cohen kappa statistic test. Sensitivity, specificity, and predictive value were assessed for the 3 observers.
Nineteen recurrent cholesteatomas were diagnosed. PROPELLER interobserver agreement was very good (1, 0.89, 0.89) among the 3 observers. Intraobserver agreement between PROPELLER and T1-weighted imaging was very good to moderate (0.88, 0.57, 0.58). PROPELLER DWI provided less interobserver variability than other sequences, and the best sensitivity, specificity, and predictive value.
On a 3T imaging unit, multishot fast spin-echo PROPELLER DWI allows an easier detection of postoperative recurrent middle ear cholesteatoma than T1-weighted imaging by reducing artifacts and by its better contrast. DWI with PROPELLER is diagnostically robust and accurate.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Biological and medical sciences</subject><subject>Cerebrospinal fluid. Spinal cord. Spinal roots. Spinal nerves</subject><subject>Child</subject><subject>Cholesteatoma, Middle Ear - pathology</subject><subject>Cholesteatoma, Middle Ear - surgery</subject><subject>Diffusion Magnetic Resonance Imaging - methods</subject><subject>Diffusion Magnetic Resonance Imaging - standards</subject><subject>Diffusion Magnetic Resonance Imaging - statistics & numerical data</subject><subject>Female</subject><subject>Head & Neck</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Nervous system</subject><subject>Neurosurgery</subject><subject>Observer Variation</subject><subject>Postoperative Complications - pathology</subject><subject>Radiodiagnosis. Nmr imagery. Nmr spectrometry</subject><subject>Recurrence</subject><subject>Reproducibility of Results</subject><subject>Sensitivity and Specificity</subject><subject>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</subject><subject>Young Adult</subject><issn>0195-6108</issn><issn>1936-959X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkV9v0zAUxSMEYmXwwgdAfoEHpAw7tpOYB6SpFJjUaVM1_rxZrn3TeEriYDut9sn4erhbtcKTLd2fz7k-J8teE3xGScU-qNvBn50Tyosn2YwIWuaCi19PsxkmguclwfVJ9iKEW4wxF1XxPDshtWC8EnyW_aE36HKFLnq1scMGuQZduxDdCF5FuwW0Aj15D0NEl9aYDtBCeTRvXQchgoquV-Ej-qG6Ce7fgrfOWK267g6tXFQRDLragu_UOO71r5VPM-jQ0g4Q0M7GFi2GVg06gcnLDSH6SUfrBvTZNs0U0i3_CXbT7qWOm77MnjWqC_DqcJ5m378sbubf8uXV14v5-TLXjJYxrxgWWJP1usa0wQIMW5eiYYYXBTek5MYQVa-h0Iw0xihSUF0prBpWYEZMWdPT7NOD7jitezA6JZF-IEdve-XvpFNW_j8ZbCs3bisrzAmtRRJ4dxDw7veUUpO9DRq6Tg3gpiDLUhCG6d7p_QOovQvBQ_NoQrDc9yz3Pcv7nhP85t-1juih2AS8PQAqpDoanyK24ZErCGElF_TItSninfUgQ58aSrJE7nY7imUhWUHpX8Fewvk</recordid><startdate>20090201</startdate><enddate>20090201</enddate><creator>Lehmann, P</creator><creator>Saliou, G</creator><creator>Brochart, C</creator><creator>Page, C</creator><creator>Deschepper, B</creator><creator>Vallee, J.N</creator><creator>Deramond, H</creator><general>Am Soc Neuroradiology</general><general>American Society of Neuroradiology</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><scope>5PM</scope></search><sort><creationdate>20090201</creationdate><title>3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging</title><author>Lehmann, P ; Saliou, G ; Brochart, C ; Page, C ; Deschepper, B ; Vallee, J.N ; Deramond, H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-74090c1bb803f09ed4b69f4d5225d165dd1a8be2c41fdda123c7a0af42041d683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Biological and medical sciences</topic><topic>Cerebrospinal fluid. Spinal cord. Spinal roots. Spinal nerves</topic><topic>Child</topic><topic>Cholesteatoma, Middle Ear - pathology</topic><topic>Cholesteatoma, Middle Ear - surgery</topic><topic>Diffusion Magnetic Resonance Imaging - methods</topic><topic>Diffusion Magnetic Resonance Imaging - standards</topic><topic>Diffusion Magnetic Resonance Imaging - statistics & numerical data</topic><topic>Female</topic><topic>Head & Neck</topic><topic>Humans</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Nervous system</topic><topic>Neurosurgery</topic><topic>Observer Variation</topic><topic>Postoperative Complications - pathology</topic><topic>Radiodiagnosis. Nmr imagery. Nmr spectrometry</topic><topic>Recurrence</topic><topic>Reproducibility of Results</topic><topic>Sensitivity and Specificity</topic><topic>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lehmann, P</creatorcontrib><creatorcontrib>Saliou, G</creatorcontrib><creatorcontrib>Brochart, C</creatorcontrib><creatorcontrib>Page, C</creatorcontrib><creatorcontrib>Deschepper, B</creatorcontrib><creatorcontrib>Vallee, J.N</creatorcontrib><creatorcontrib>Deramond, H</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><collection>PubMed Central (Full Participant titles)</collection><jtitle>American journal of neuroradiology : AJNR</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lehmann, P</au><au>Saliou, G</au><au>Brochart, C</au><au>Page, C</au><au>Deschepper, B</au><au>Vallee, J.N</au><au>Deramond, H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging</atitle><jtitle>American journal of neuroradiology : AJNR</jtitle><addtitle>AJNR Am J Neuroradiol</addtitle><date>2009-02-01</date><risdate>2009</risdate><volume>30</volume><issue>2</issue><spage>423</spage><epage>427</epage><pages>423-427</pages><issn>0195-6108</issn><eissn>1936-959X</eissn><coden>AAJNDL</coden><abstract>MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (ASSET) single-shot echo-planar DWI and late postgadolinium T1-weighted MR imaging for the detection of postoperative recurrent middle ear cholesteatomas with a 3T imaging unit.
Thirty-five patients with suggested postoperative recurrent middle ear cholesteatoma underwent 3T MR imaging with PROPELLER DWI, ASSET echo-planar DWI, and late postgadolinium T1-weighted MR imaging. Three radiologists (2 seniors, 1 fellow) analyzed unlabeled images for visualization of recurrence. Interobserver and intraobserver agreement was assessed by using the Cohen kappa statistic test. Sensitivity, specificity, and predictive value were assessed for the 3 observers.
Nineteen recurrent cholesteatomas were diagnosed. PROPELLER interobserver agreement was very good (1, 0.89, 0.89) among the 3 observers. Intraobserver agreement between PROPELLER and T1-weighted imaging was very good to moderate (0.88, 0.57, 0.58). PROPELLER DWI provided less interobserver variability than other sequences, and the best sensitivity, specificity, and predictive value.
On a 3T imaging unit, multishot fast spin-echo PROPELLER DWI allows an easier detection of postoperative recurrent middle ear cholesteatoma than T1-weighted imaging by reducing artifacts and by its better contrast. DWI with PROPELLER is diagnostically robust and accurate.</abstract><cop>Oak Brook, IL</cop><pub>Am Soc Neuroradiology</pub><pmid>18945795</pmid><doi>10.3174/ajnr.A1352</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0195-6108 |
ispartof | American journal of neuroradiology : AJNR, 2009-02, Vol.30 (2), p.423-427 |
issn | 0195-6108 1936-959X |
language | eng |
recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7051389 |
source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central |
subjects | Adolescent Adult Aged Aged, 80 and over Biological and medical sciences Cerebrospinal fluid. Spinal cord. Spinal roots. Spinal nerves Child Cholesteatoma, Middle Ear - pathology Cholesteatoma, Middle Ear - surgery Diffusion Magnetic Resonance Imaging - methods Diffusion Magnetic Resonance Imaging - standards Diffusion Magnetic Resonance Imaging - statistics & numerical data Female Head & Neck Humans Investigative techniques, diagnostic techniques (general aspects) Magnetic Resonance Imaging Male Medical sciences Middle Aged Nervous system Neurosurgery Observer Variation Postoperative Complications - pathology Radiodiagnosis. Nmr imagery. Nmr spectrometry Recurrence Reproducibility of Results Sensitivity and Specificity Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases Young Adult |
title | 3T MR Imaging of Postoperative Recurrent Middle Ear Cholesteatomas: Value of Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction Diffusion-Weighted MR Imaging |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T02%3A58%3A01IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=3T%20MR%20Imaging%20of%20Postoperative%20Recurrent%20Middle%20Ear%20Cholesteatomas:%20Value%20of%20Periodically%20Rotated%20Overlapping%20Parallel%20Lines%20with%20Enhanced%20Reconstruction%20Diffusion-Weighted%20MR%20Imaging&rft.jtitle=American%20journal%20of%20neuroradiology%20:%20AJNR&rft.au=Lehmann,%20P&rft.date=2009-02-01&rft.volume=30&rft.issue=2&rft.spage=423&rft.epage=427&rft.pages=423-427&rft.issn=0195-6108&rft.eissn=1936-959X&rft.coden=AAJNDL&rft_id=info:doi/10.3174/ajnr.A1352&rft_dat=%3Cproquest_pubme%3E66914038%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=66914038&rft_id=info:pmid/18945795&rfr_iscdi=true |