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dc.contributor.authorJärmann, Thomas-
dc.contributor.authorPruessmann, Klaas-
dc.contributor.authorValavanis, A.-
dc.contributor.authorKollias, S.-
dc.contributor.authorBoesiger, Peter-
dc.date.accessioned2018-04-10T15:26:26Z-
dc.date.available2018-04-10T15:26:26Z-
dc.date.issued2006-
dc.identifier.issn0740-3194de_CH
dc.identifier.issn1522-2594de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/5028-
dc.description.abstractLimited spatial resolution is a key obstacle to the study of brain white matter structure with diffusion tensor imaging (DTI). In its frequent implementation with single-excitation spin-echo echo-planar sequences, DTI's ability to resolve small structures is strongly restricted by T2 and T2* decay, B0 inhomogeneity, and limited signal-to-noise ratio (SNR). In this work the influence of sensitivity encoding (SENSE) on diffusion-weighted (DW) image properties is investigated. Computer simulations showed that the PSF becomes narrower with increasing SENSE reduction factors, R, enhancing the intrinsic resolution. After a brief theoretical discussion, we describe the estimation of SNR on a pixel-by-pixel basis as a function of R. The mean image SNR behavior is manifold: SENSE is capable of increasing SNR efficiency by reducing the echo time (TE). Each SNR(R) curve reveals a maximum that depends on the amount of partial Fourier encoding used. The overall best SNR efficiency for an eight-element head coil array and a b-factor of 1000 s/mm2 is achieved at R = 2.1 and partial Fourier encoding of 60%. In vivo tensor maps of volunteers and a patient, with an in-plane resolution of 0.78 x 0.78 mm2, are also presented to demonstrate the practical implementation of the parallel approach.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofMagnetic Resonance in Medicinede_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectArteriovenous malformationsde_CH
dc.subjectArtifactsde_CH
dc.subjectBrain mappingde_CH
dc.subjectComputer Simulationde_CH
dc.subjectDiffusion Magnetic Resonance Imagingde_CH
dc.subjectHumansde_CH
dc.subjectComputer-assisted image processingde_CH
dc.subjectEcho-planar imagingde_CH
dc.subject.ddc616: Innere Medizin und Krankheitende_CH
dc.titleInfluence of SENSE on image properties in high-resolution single-shot echo-planar DTIde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
dc.identifier.doi10.1002/mrm.20769de_CH
dc.identifier.pmid16416432de_CH
zhaw.funding.euNode_CH
zhaw.issue2de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end342de_CH
zhaw.pages.start335de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume55de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Järmann, T., Pruessmann, K., Valavanis, A., Kollias, S., & Boesiger, P. (2006). Influence of SENSE on image properties in high-resolution single-shot echo-planar DTI. Magnetic Resonance in Medicine, 55(2), 335–342. https://doi.org/10.1002/mrm.20769
Järmann, T. et al. (2006) ‘Influence of SENSE on image properties in high-resolution single-shot echo-planar DTI’, Magnetic Resonance in Medicine, 55(2), pp. 335–342. Available at: https://doi.org/10.1002/mrm.20769.
T. Järmann, K. Pruessmann, A. Valavanis, S. Kollias, and P. Boesiger, “Influence of SENSE on image properties in high-resolution single-shot echo-planar DTI,” Magnetic Resonance in Medicine, vol. 55, no. 2, pp. 335–342, 2006, doi: 10.1002/mrm.20769.
JÄRMANN, Thomas, Klaas PRUESSMANN, A. VALAVANIS, S. KOLLIAS und Peter BOESIGER, 2006. Influence of SENSE on image properties in high-resolution single-shot echo-planar DTI. Magnetic Resonance in Medicine. 2006. Bd. 55, Nr. 2, S. 335–342. DOI 10.1002/mrm.20769
Järmann, Thomas, Klaas Pruessmann, A. Valavanis, S. Kollias, and Peter Boesiger. 2006. “Influence of SENSE on Image Properties in High-Resolution Single-Shot Echo-Planar DTI.” Magnetic Resonance in Medicine 55 (2): 335–42. https://doi.org/10.1002/mrm.20769.
Järmann, Thomas, et al. “Influence of SENSE on Image Properties in High-Resolution Single-Shot Echo-Planar DTI.” Magnetic Resonance in Medicine, vol. 55, no. 2, 2006, pp. 335–42, https://doi.org/10.1002/mrm.20769.


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