The diminishing variance algorithm for real‐time reduction of motion artifacts in MRI

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dc.catalogadorgrr
dc.contributor.authorSachs, T.S.
dc.contributor.authorMeyer, C.H.
dc.contributor.authorIrarrazabal, Pablo
dc.contributor.authorHu, B.S.
dc.contributor.authorNishimura, D.G.
dc.contributor.authorMacovski, A.
dc.date.accessioned2024-05-28T20:46:08Z
dc.date.available2024-05-28T20:46:08Z
dc.date.issued1995
dc.description.abstractA technique has been developed whereby motion can be detected in real time during the acquisition of data. This enables the implementation of several algorithms to reduce or eliminate motion effects from an image as it is being acquired. One such algorithm previously described is the acceptance/rejection method. This paper deals with another real‐time algorithm called the diminishing variance algorithm (DVA). With this method, a complete set of preliminary data is acquired along with information about the relative motion position of each frame of data. After all the preliminary data are acquired, the position information is used to determine which data frames are most corrupted by motion. Frames of data are then reacquired, starting with the most corrupted one. The position information is continually updated in an iterative process; therefore, each subsequent reacquisition is always done on the worst frame of data. The algorithm has been implemented on several different types of sequences. Preliminary in vivo studies indicate that motion artifacts are dramatically reduced. Copyright © 1995 Wiley‐Liss, Inc., A Wiley Company
dc.fuente.origenScopus
dc.identifier.doi10.1002/mrm.1910340319
dc.identifier.eissn15222594
dc.identifier.pubmedid7500881
dc.identifier.scopusidSCOPUS_ID:0029123801
dc.identifier.urihttps://doi.org/10.1002/mrm.1910340319
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/85935
dc.language.isoen
dc.pagina.final422
dc.pagina.inicio412
dc.revistaMagnetic Resonance in Medicine
dc.rightsacceso restringido
dc.subjectabdominal imaging
dc.subjectcardiac imaging
dc.subjectmotion artifacts
dc.subjectMRI
dc.subjectnavigators
dc.titleThe diminishing variance algorithm for real‐time reduction of motion artifacts in MRI
dc.typeartículo
dc.volumen34
sipa.trazabilidadScopus;12-10-2021
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