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Article: TOF-MRA using Multi-Oblique-Stack Acquisition (MOSA)

TitleTOF-MRA using Multi-Oblique-Stack Acquisition (MOSA)
Authors
Issue Date2007
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1053-1807/
Citation
Journal Of Magnetic Resonance Imaging, 2007, v. 26 n. 2, p. 432-436 How to Cite?
AbstractPurpose: To alleviate the intrinsic limitation of current time-of-flight magnetic resonance angiography (TOF-MRA) techniques, which are insensitive to in-plane blood flow due to the flow saturation effect. Materials and Methods: A multi-oblique-stack acquisition (MOSA) technique was proposed in this study to tackle this TOF problem by acquiring two or more TOF image stacks bearing different orientations. The MOSA approach was evaluated in human brain MR angiograms by integrating it with the widely used multiple overlapping thin-slab acquisition (MOTSA) technique. Two TOF image sets in different orientations were acquired using MOTSA. They were combined pixel-by-pixel by taking the maximum intensity value. Maximum intensity projection (MIP) was then performed, and the resulting MRA quality was assessed. Results: The results demonstrated that MR angiograms obtained by MOSA-MOTSA were clearly improved compared to those acquired by conventional MOTSA in the same scan time. Conclusion: MOSA clearly demonstrates its advantage over conventional TOF acquisition in visualizing in-plane blood flows. © 2007 Wiley-Liss, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/155385
ISSN
2015 Impact Factor: 3.25
2015 SCImago Journal Rankings: 1.683
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, EXen_US
dc.contributor.authorHui, ESen_US
dc.contributor.authorCheung, JSen_US
dc.date.accessioned2012-08-08T08:33:13Z-
dc.date.available2012-08-08T08:33:13Z-
dc.date.issued2007en_US
dc.identifier.citationJournal Of Magnetic Resonance Imaging, 2007, v. 26 n. 2, p. 432-436en_US
dc.identifier.issn1053-1807en_US
dc.identifier.urihttp://hdl.handle.net/10722/155385-
dc.description.abstractPurpose: To alleviate the intrinsic limitation of current time-of-flight magnetic resonance angiography (TOF-MRA) techniques, which are insensitive to in-plane blood flow due to the flow saturation effect. Materials and Methods: A multi-oblique-stack acquisition (MOSA) technique was proposed in this study to tackle this TOF problem by acquiring two or more TOF image stacks bearing different orientations. The MOSA approach was evaluated in human brain MR angiograms by integrating it with the widely used multiple overlapping thin-slab acquisition (MOTSA) technique. Two TOF image sets in different orientations were acquired using MOTSA. They were combined pixel-by-pixel by taking the maximum intensity value. Maximum intensity projection (MIP) was then performed, and the resulting MRA quality was assessed. Results: The results demonstrated that MR angiograms obtained by MOSA-MOTSA were clearly improved compared to those acquired by conventional MOTSA in the same scan time. Conclusion: MOSA clearly demonstrates its advantage over conventional TOF acquisition in visualizing in-plane blood flows. © 2007 Wiley-Liss, Inc.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1053-1807/en_US
dc.relation.ispartofJournal of Magnetic Resonance Imagingen_US
dc.rightsJournal of Magnetic Resonance Imaging. Copyright © John Wiley & Sons, Inc.-
dc.subject.meshAlgorithmsen_US
dc.subject.meshBlood Flow Velocityen_US
dc.subject.meshBrain - Pathologyen_US
dc.subject.meshCerebral Angiography - Methodsen_US
dc.subject.meshHumansen_US
dc.subject.meshImage Processing, Computer-Assisteden_US
dc.subject.meshImaging, Three-Dimensionalen_US
dc.subject.meshMagnetic Resonance Angiography - Methodsen_US
dc.subject.meshMagnetic Resonance Imaging - Methodsen_US
dc.subject.meshModels, Statisticalen_US
dc.titleTOF-MRA using Multi-Oblique-Stack Acquisition (MOSA)en_US
dc.typeArticleen_US
dc.identifier.emailWu, EX:ewu1@hkucc.hku.hken_US
dc.identifier.authorityWu, EX=rp00193en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/jmri.20954en_US
dc.identifier.pmid17610282-
dc.identifier.scopuseid_2-s2.0-34547887969en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547887969&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume26en_US
dc.identifier.issue2en_US
dc.identifier.spage432en_US
dc.identifier.epage436en_US
dc.identifier.isiWOS:000248577900028-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWu, EX=7202128034en_US
dc.identifier.scopusauthoridHui, ES=16175117100en_US
dc.identifier.scopusauthoridCheung, JS=16174280400en_US

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