Adaptive Postprocessing Techniques for Myocardial Tissue Tracking with Displacement-encoded MR Imaging1
The purpose of this study was to prospectively assess the effects of two adaptive postprocessing techniques on the evaluation of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall motion, with two-dimensional echocardiography as the...
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| Veröffentlicht in: | Radiology 2008-01, Vol.246 (1), p.229-240 |
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| creator | Wen, Han Marsolo, Keith A. Bennett, Eric E. Kutten, Kwame S. Lewis, Ryan P. Lipps, David B. Epstein, Neal D. Plehn, Jonathan F. Croisille, Pierre |
| description | The purpose of this study was to prospectively assess the effects of two adaptive postprocessing techniques on the evaluation
of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall
motion, with two-dimensional echocardiography as the reference standard. Sixteen patients (11 men, five women; age range,
26â74 years) and 12 volunteers (six men, six women; age range, 29â53 years) underwent breath-hold MR imaging. Institutional
review board approval and informed consent were obtained. Adaptive phase-unwrapping and spatial filtering techniques were
compared with conventional phase-unwrapping and spatial filtering techniques. Use of the adaptive techniques led to a reduced
rate of failure with the phase-unwrapping technique from 18.9% to 0.6% ( P < .001), resulted in lower variability of segmental strain measurements among healthy volunteers ( P < .001 to P = .02), and increased the sensitivity of quantitative detection of abnormal segments in patients from 82.5% to 87.7% ( P = .034). The adaptive techniques improved the semiautomated postprocessing of displacement-encoded cardiac images and increased
the sensitivity of detection of abnormal wall motion in patients.
Supplemental material: http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1
© RSNA, 2008 |
| doi_str_mv | 10.1148/radiol.2461070053 |
| format | Article |
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of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall
motion, with two-dimensional echocardiography as the reference standard. Sixteen patients (11 men, five women; age range,
26â74 years) and 12 volunteers (six men, six women; age range, 29â53 years) underwent breath-hold MR imaging. Institutional
review board approval and informed consent were obtained. Adaptive phase-unwrapping and spatial filtering techniques were
compared with conventional phase-unwrapping and spatial filtering techniques. Use of the adaptive techniques led to a reduced
rate of failure with the phase-unwrapping technique from 18.9% to 0.6% ( P < .001), resulted in lower variability of segmental strain measurements among healthy volunteers ( P < .001 to P = .02), and increased the sensitivity of quantitative detection of abnormal segments in patients from 82.5% to 87.7% ( P = .034). The adaptive techniques improved the semiautomated postprocessing of displacement-encoded cardiac images and increased
the sensitivity of detection of abnormal wall motion in patients.
Supplemental material: http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1
© RSNA, 2008</description><identifier>ISSN: 0033-8419</identifier><identifier>EISSN: 1527-1315</identifier><identifier>DOI: 10.1148/radiol.2461070053</identifier><identifier>PMID: 18096537</identifier><language>eng</language><publisher>Radiological Society of North America</publisher><ispartof>Radiology, 2008-01, Vol.246 (1), p.229-240</ispartof><rights>RSNA, 2008 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids></links><search><creatorcontrib>Wen, Han</creatorcontrib><creatorcontrib>Marsolo, Keith A.</creatorcontrib><creatorcontrib>Bennett, Eric E.</creatorcontrib><creatorcontrib>Kutten, Kwame S.</creatorcontrib><creatorcontrib>Lewis, Ryan P.</creatorcontrib><creatorcontrib>Lipps, David B.</creatorcontrib><creatorcontrib>Epstein, Neal D.</creatorcontrib><creatorcontrib>Plehn, Jonathan F.</creatorcontrib><creatorcontrib>Croisille, Pierre</creatorcontrib><title>Adaptive Postprocessing Techniques for Myocardial Tissue Tracking with Displacement-encoded MR Imaging1</title><title>Radiology</title><description>The purpose of this study was to prospectively assess the effects of two adaptive postprocessing techniques on the evaluation
of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall
motion, with two-dimensional echocardiography as the reference standard. Sixteen patients (11 men, five women; age range,
26â74 years) and 12 volunteers (six men, six women; age range, 29â53 years) underwent breath-hold MR imaging. Institutional
review board approval and informed consent were obtained. Adaptive phase-unwrapping and spatial filtering techniques were
compared with conventional phase-unwrapping and spatial filtering techniques. Use of the adaptive techniques led to a reduced
rate of failure with the phase-unwrapping technique from 18.9% to 0.6% ( P < .001), resulted in lower variability of segmental strain measurements among healthy volunteers ( P < .001 to P = .02), and increased the sensitivity of quantitative detection of abnormal segments in patients from 82.5% to 87.7% ( P = .034). The adaptive techniques improved the semiautomated postprocessing of displacement-encoded cardiac images and increased
the sensitivity of detection of abnormal wall motion in patients.
Supplemental material: http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1
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of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall
motion, with two-dimensional echocardiography as the reference standard. Sixteen patients (11 men, five women; age range,
26â74 years) and 12 volunteers (six men, six women; age range, 29â53 years) underwent breath-hold MR imaging. Institutional
review board approval and informed consent were obtained. Adaptive phase-unwrapping and spatial filtering techniques were
compared with conventional phase-unwrapping and spatial filtering techniques. Use of the adaptive techniques led to a reduced
rate of failure with the phase-unwrapping technique from 18.9% to 0.6% ( P < .001), resulted in lower variability of segmental strain measurements among healthy volunteers ( P < .001 to P = .02), and increased the sensitivity of quantitative detection of abnormal segments in patients from 82.5% to 87.7% ( P = .034). The adaptive techniques improved the semiautomated postprocessing of displacement-encoded cardiac images and increased
the sensitivity of detection of abnormal wall motion in patients.
Supplemental material: http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1
© RSNA, 2008</abstract><pub>Radiological Society of North America</pub><pmid>18096537</pmid><doi>10.1148/radiol.2461070053</doi><tpages>12</tpages></addata></record> |
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| language | eng |
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| source | Alma/SFX Local Collection |
| title | Adaptive Postprocessing Techniques for Myocardial Tissue Tracking with Displacement-encoded MR Imaging1 |
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