| Respiratory bellows revisited for motion compensation: Preliminary experience for cardiovascular MR. | |
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MedLine Citation:
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PMID: 21049476 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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For many cardiac MR applications, respiratory bellows gating is attractive because it is widely available and not disruptive to or dependent on imaging. However, its use is uncommon in cardiac MR, because its accuracy has not been fully studied. Here, in 10 healthy subjects, the bellows and respiratory navigator (NAV) with the displacement of the diaphragm and heart were simultaneously monitored, during single-shot imaging. Furthermore, bellows-gated and NAV-gated coronary MRI were compared using a retrospective reconstruction at identical efficiency. There was a strong linear relationship for both the NAV and the abdominal bellows with the diaphragm (R = 0.90 ± 0.05 bellows, R = 0.98 ± 0.01 NAV, P < 0.001) and the heart (R = 0.89 ± 0.06 bellows, R = 0.96 ± 0.02 NAV, P = 0.004); thoracic bellows correlated less strongly. The image quality of bellows-gated coronary MRI was similar to NAV-gated and superior to no-gating (P < 0.01). In conclusion, bellows provides a respiratory monitor which is highly correlated with the NAV and suitable for respiratory compensation in selected cardiac MR applications. Magn Reson Med, 2010. © 2010 Wiley-Liss, Inc. |
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Authors:
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Claudio Santelli; Reza Nezafat; Beth Goddu; Warren J Manning; Jouke Smink; Sebastian Kozerke; Dana C Peters |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-11-3 |
Journal Detail:
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Title: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine Volume: - ISSN: 1522-2594 ISO Abbreviation: - Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8505245 Medline TA: Magn Reson Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Swiss Federal Institute of Technology, Zurich, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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