New Respiratory Gating Technique for Whole Heart Cine Imaging: Integration of a Navigator Slice in Steady State Free Precession Sequences

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dc.contributor.authorUribe, Sergio
dc.contributor.authorTejos, Cristian
dc.contributor.authorRazavi, Reza
dc.contributor.authorSchaeffter, Tobias
dc.date.accessioned2024-01-10T12:06:54Z
dc.date.available2024-01-10T12:06:54Z
dc.date.issued2011
dc.description.abstractPurpose: To evaluate the performance of a slice navigator sequence integrated into a b-SSFP sequence for obtaining real time respiratory self-gated whole heart cine imaging.
dc.description.abstractMaterials and Methods: In this work, we present a novel and robust approach for respiratory motion detection by integrating a slice navigator sequence into a balanced steady state free precession (b-SSFP) sequence, while maintaining the steady state. The slice navigator sequence is integrated into consecutive repetition times (TRs) of a b-SSFP sequence to excite and read out a navigator slice. We performed several phantom experiments to test the performance of the slice navigator sequence. Additionally, the method was evaluated in five volunteers and compared with breathing signals obtained from conventional pencil beam navigator sequence. Finally, the navigator slice was used to obtain whole heart MR cine images.
dc.description.abstractResults: The breathing signals detected by the proposed method showed an excellent agreement with those obtained from pencil beam navigators. Moreover, the technique was capable of removing respiratory motion artifacts with minimal distortion of the steady state. Image quality comparison showed a statistical significant improvement from a quality score of 2.1 obtained by the nonrespiratory gated images, compared to a quality score of 3.4 obtained by the respiratory gated images.
dc.description.abstractConclusion: This novel method represents a robust approach to estimate breathing motion during SSFP Imaging. The technique was successfully applied to acquire whole heart artifact-free cine images.
dc.description.funderBHF Center of Excellence
dc.description.funderBRC center
dc.description.funderVRAID-PUC
dc.description.funderMedical Research Council
dc.fechaingreso.objetodigital2024-04-27
dc.format.extent9 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/jmri.22625
dc.identifier.issn1053-1807
dc.identifier.pubmedidMEDLINE:21618337
dc.identifier.urihttps://doi.org/10.1002/jmri.22625
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76221
dc.identifier.wosidWOS:000292421800026
dc.information.autorucIngeniería;Tejos C ;S/I;4027
dc.information.autorucMedicina;Uribe S ;S/I;16572
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final219
dc.pagina.inicio211
dc.publisherWILEY-BLACKWELL
dc.revistaJOURNAL OF MAGNETIC RESONANCE IMAGING
dc.rightsacceso restringido
dc.subjectrespiratory self-gating
dc.subjectwhole heart imaging
dc.subjectk(o) projections
dc.subjectBALANCED SSFP
dc.subjectCOMPENSATION
dc.subjectANGIOGRAPHY
dc.subjectMRI
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleNew Respiratory Gating Technique for Whole Heart Cine Imaging: Integration of a Navigator Slice in Steady State Free Precession Sequences
dc.typeartículo
dc.volumen34
sipa.codpersvinculados4027
sipa.codpersvinculados16572
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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