Patellar Cartilage Lesions: Comparison of Magnetic Resonance Imaging and T2 Relaxation-Time Mapping
Purpose: To evaluate the detection and the size of focal patellar cartilage lesions in T2 mapping as compared to standard clinical magnetic resonance imaging (MRI) at 1.5T. Material and Methods: Fifty-five consecutive clinical patients referred to knee MRI were imaged both with a standard knee MRI p...
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| Veröffentlicht in: | Acta radiologica (1987) 2007-05, Vol.48 (4), p.444-448 |
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| creator | Hannila, I. Nieminen, M. T. Rauvala, E. Tervonen, O. Ojala, R. |
| description | Purpose: To evaluate the detection and the size of focal patellar cartilage lesions in T2 mapping as compared to standard clinical magnetic resonance imaging (MRI) at 1.5T.
Material and Methods: Fifty-five consecutive clinical patients referred to knee MRI were imaged both with a standard knee MRI protocol (proton-density-weighted sagittal and axial series, T2-weighted sagittal and coronal series, and T1-weighted coronal series) and with an axial multislice multi-echo spin-echo measurement to determine the T2 relaxation time of the patellar cartilage. MR images and T2 maps of patellar cartilage were evaluated for focal lesions. The lesions were evaluated for lesion width (mm), lesion depth (1 3, 2 3, or 3 3 of cartilage thickness), and T2 value (20-40 ms, 40-60 ms, or 60-80 ms) based on visual evaluation.
Results: Altogether, 36 focal patellar cartilage lesions were detected from 20 human subjects (11 male, nine female, mean age 40±15 years). Twenty-eight lesions were detected both on MRI and T2 maps, while eight lesions were only visible on T2 maps. Cartilage lesions were significantly wider (P = 0.001) and thicker (P |
| doi_str_mv | 10.1080/02841850701280817 |
| format | Article |
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Material and Methods: Fifty-five consecutive clinical patients referred to knee MRI were imaged both with a standard knee MRI protocol (proton-density-weighted sagittal and axial series, T2-weighted sagittal and coronal series, and T1-weighted coronal series) and with an axial multislice multi-echo spin-echo measurement to determine the T2 relaxation time of the patellar cartilage. MR images and T2 maps of patellar cartilage were evaluated for focal lesions. The lesions were evaluated for lesion width (mm), lesion depth (1 3, 2 3, or 3 3 of cartilage thickness), and T2 value (20-40 ms, 40-60 ms, or 60-80 ms) based on visual evaluation.
Results: Altogether, 36 focal patellar cartilage lesions were detected from 20 human subjects (11 male, nine female, mean age 40±15 years). Twenty-eight lesions were detected both on MRI and T2 maps, while eight lesions were only visible on T2 maps. Cartilage lesions were significantly wider (P = 0.001) and thicker (P<0.001) on T2 maps as compared to standard knee MRI. Most lesions [27] had moderately (T2 40-60 ms) increased T2 values, while two lesions had slightly (T2 20-40 ms) and seven lesions remarkably (T2 60-80 ms) increased T2 relaxation times.
Conclusion: T2 mapping of articular cartilage is feasible in the clinical setting and may reveal early cartilage lesions not visible with standard clinical MRI.</description><identifier>ISSN: 0284-1851</identifier><identifier>EISSN: 1600-0455</identifier><identifier>DOI: 10.1080/02841850701280817</identifier><identifier>PMID: 17453527</identifier><identifier>CODEN: ACRAE3</identifier><language>eng</language><publisher>London, England: Informa UK Ltd</publisher><subject>Adolescent ; Adult ; Aged ; Arthralgia - diagnosis ; Biological and medical sciences ; Cartilage Diseases - diagnosis ; Cartilage, Articular - pathology ; Diseases of the osteoarticular system ; Feasibility Studies ; Female ; Humans ; Image Enhancement - methods ; Image Processing, Computer-Assisted - methods ; Knee Injuries - diagnosis ; Knee Joint - pathology ; Magnetic Resonance Imaging - methods ; Male ; Medical sciences ; Middle Aged ; Miscellaneous. Osteoarticular involvement in other diseases ; Osteoarthritis ; Patella - pathology ; Synovial Fluid</subject><ispartof>Acta radiologica (1987), 2007-05, Vol.48 (4), p.444-448</ispartof><rights>2007 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted 2007</rights><rights>2007 Taylor & Francis</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c486t-3efa9c135681f0cfe83501bf522eee5537a94dc88477f12653e5223e86a6a0dc3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.1080/02841850701280817$$EPDF$$P50$$Ginformahealthcare$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.1080/02841850701280817$$EHTML$$P50$$Ginformahealthcare$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,61198,61379</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18735234$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17453527$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hannila, I.</creatorcontrib><creatorcontrib>Nieminen, M. T.</creatorcontrib><creatorcontrib>Rauvala, E.</creatorcontrib><creatorcontrib>Tervonen, O.</creatorcontrib><creatorcontrib>Ojala, R.</creatorcontrib><title>Patellar Cartilage Lesions: Comparison of Magnetic Resonance Imaging and T2 Relaxation-Time Mapping</title><title>Acta radiologica (1987)</title><addtitle>Acta Radiol</addtitle><description>Purpose: To evaluate the detection and the size of focal patellar cartilage lesions in T2 mapping as compared to standard clinical magnetic resonance imaging (MRI) at 1.5T.
Material and Methods: Fifty-five consecutive clinical patients referred to knee MRI were imaged both with a standard knee MRI protocol (proton-density-weighted sagittal and axial series, T2-weighted sagittal and coronal series, and T1-weighted coronal series) and with an axial multislice multi-echo spin-echo measurement to determine the T2 relaxation time of the patellar cartilage. MR images and T2 maps of patellar cartilage were evaluated for focal lesions. The lesions were evaluated for lesion width (mm), lesion depth (1 3, 2 3, or 3 3 of cartilage thickness), and T2 value (20-40 ms, 40-60 ms, or 60-80 ms) based on visual evaluation.
Results: Altogether, 36 focal patellar cartilage lesions were detected from 20 human subjects (11 male, nine female, mean age 40±15 years). Twenty-eight lesions were detected both on MRI and T2 maps, while eight lesions were only visible on T2 maps. Cartilage lesions were significantly wider (P = 0.001) and thicker (P<0.001) on T2 maps as compared to standard knee MRI. Most lesions [27] had moderately (T2 40-60 ms) increased T2 values, while two lesions had slightly (T2 20-40 ms) and seven lesions remarkably (T2 60-80 ms) increased T2 relaxation times.
Conclusion: T2 mapping of articular cartilage is feasible in the clinical setting and may reveal early cartilage lesions not visible with standard clinical MRI.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Arthralgia - diagnosis</subject><subject>Biological and medical sciences</subject><subject>Cartilage Diseases - diagnosis</subject><subject>Cartilage, Articular - pathology</subject><subject>Diseases of the osteoarticular system</subject><subject>Feasibility Studies</subject><subject>Female</subject><subject>Humans</subject><subject>Image Enhancement - methods</subject><subject>Image Processing, Computer-Assisted - methods</subject><subject>Knee Injuries - diagnosis</subject><subject>Knee Joint - pathology</subject><subject>Magnetic Resonance Imaging - methods</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Miscellaneous. Osteoarticular involvement in other diseases</subject><subject>Osteoarthritis</subject><subject>Patella - pathology</subject><subject>Synovial Fluid</subject><issn>0284-1851</issn><issn>1600-0455</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkE1rGzEQhkVpaJy0P6CXoktz20RarVZKcwomX-DSUtzzMpFHjsKutJHWkPz7jLEhh0DpaUDv886gh7GvUpxKYcWZqG0jrRZGyNoKK80HNpOtEJVotP7IZtu8IkAesqNSHgVhRstP7FCaRitdmxlzv2HCvofM55Cn0MMa-QJLSLH84PM0jJBDSZEnz3_COuIUHP-D9ALRIb8bYB3imkNc8WVNQQ_PMFG5WoYBqTGOFH9mBx76gl_285j9vb5azm-rxa-bu_nlonKNbadKoYdzJ5VurfTCebRKC3nvdV0jotbKwHmzctY2xnhZt1ohRQptCy2IlVPH7GS3d8zpaYNl6oZQ3PZ3EdOmdEaQrVYoAuUOdDmVktF3Yw4D5JdOim5rtntnljrf9ss39wOu3hp7lQR83wNQHPQ-k6FQ3jhrCFMNcac7rpDr7jFtciQp_7x8sSuE6FMe4AGhnx4c5P9qvwIAYp8z</recordid><startdate>200705</startdate><enddate>200705</enddate><creator>Hannila, I.</creator><creator>Nieminen, M. T.</creator><creator>Rauvala, E.</creator><creator>Tervonen, O.</creator><creator>Ojala, R.</creator><general>Informa UK Ltd</general><general>SAGE Publications</general><general>Taylor & Francis</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>200705</creationdate><title>Patellar Cartilage Lesions: Comparison of Magnetic Resonance Imaging and T2 Relaxation-Time Mapping</title><author>Hannila, I. ; Nieminen, M. T. ; Rauvala, E. ; Tervonen, O. ; Ojala, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c486t-3efa9c135681f0cfe83501bf522eee5537a94dc88477f12653e5223e86a6a0dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Arthralgia - diagnosis</topic><topic>Biological and medical sciences</topic><topic>Cartilage Diseases - diagnosis</topic><topic>Cartilage, Articular - pathology</topic><topic>Diseases of the osteoarticular system</topic><topic>Feasibility Studies</topic><topic>Female</topic><topic>Humans</topic><topic>Image Enhancement - methods</topic><topic>Image Processing, Computer-Assisted - methods</topic><topic>Knee Injuries - diagnosis</topic><topic>Knee Joint - pathology</topic><topic>Magnetic Resonance Imaging - methods</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Miscellaneous. Osteoarticular involvement in other diseases</topic><topic>Osteoarthritis</topic><topic>Patella - pathology</topic><topic>Synovial Fluid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hannila, I.</creatorcontrib><creatorcontrib>Nieminen, M. T.</creatorcontrib><creatorcontrib>Rauvala, E.</creatorcontrib><creatorcontrib>Tervonen, O.</creatorcontrib><creatorcontrib>Ojala, R.</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>Acta radiologica (1987)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hannila, I.</au><au>Nieminen, M. T.</au><au>Rauvala, E.</au><au>Tervonen, O.</au><au>Ojala, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Patellar Cartilage Lesions: Comparison of Magnetic Resonance Imaging and T2 Relaxation-Time Mapping</atitle><jtitle>Acta radiologica (1987)</jtitle><addtitle>Acta Radiol</addtitle><date>2007-05</date><risdate>2007</risdate><volume>48</volume><issue>4</issue><spage>444</spage><epage>448</epage><pages>444-448</pages><issn>0284-1851</issn><eissn>1600-0455</eissn><coden>ACRAE3</coden><abstract>Purpose: To evaluate the detection and the size of focal patellar cartilage lesions in T2 mapping as compared to standard clinical magnetic resonance imaging (MRI) at 1.5T.
Material and Methods: Fifty-five consecutive clinical patients referred to knee MRI were imaged both with a standard knee MRI protocol (proton-density-weighted sagittal and axial series, T2-weighted sagittal and coronal series, and T1-weighted coronal series) and with an axial multislice multi-echo spin-echo measurement to determine the T2 relaxation time of the patellar cartilage. MR images and T2 maps of patellar cartilage were evaluated for focal lesions. The lesions were evaluated for lesion width (mm), lesion depth (1 3, 2 3, or 3 3 of cartilage thickness), and T2 value (20-40 ms, 40-60 ms, or 60-80 ms) based on visual evaluation.
Results: Altogether, 36 focal patellar cartilage lesions were detected from 20 human subjects (11 male, nine female, mean age 40±15 years). Twenty-eight lesions were detected both on MRI and T2 maps, while eight lesions were only visible on T2 maps. Cartilage lesions were significantly wider (P = 0.001) and thicker (P<0.001) on T2 maps as compared to standard knee MRI. Most lesions [27] had moderately (T2 40-60 ms) increased T2 values, while two lesions had slightly (T2 20-40 ms) and seven lesions remarkably (T2 60-80 ms) increased T2 relaxation times.
Conclusion: T2 mapping of articular cartilage is feasible in the clinical setting and may reveal early cartilage lesions not visible with standard clinical MRI.</abstract><cop>London, England</cop><pub>Informa UK Ltd</pub><pmid>17453527</pmid><doi>10.1080/02841850701280817</doi><tpages>5</tpages></addata></record> |
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| subjects | Adolescent Adult Aged Arthralgia - diagnosis Biological and medical sciences Cartilage Diseases - diagnosis Cartilage, Articular - pathology Diseases of the osteoarticular system Feasibility Studies Female Humans Image Enhancement - methods Image Processing, Computer-Assisted - methods Knee Injuries - diagnosis Knee Joint - pathology Magnetic Resonance Imaging - methods Male Medical sciences Middle Aged Miscellaneous. Osteoarticular involvement in other diseases Osteoarthritis Patella - pathology Synovial Fluid |
| title | Patellar Cartilage Lesions: Comparison of Magnetic Resonance Imaging and T2 Relaxation-Time Mapping |
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