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dc.contributor.authorJärmann, Thomas-
dc.contributor.authorDe Zanche, Nicolas-
dc.contributor.authorStaempfli, P.-
dc.contributor.authorPruessmann, K.P.-
dc.contributor.authorValavanis, A.-
dc.contributor.authorBoesiger, P.-
dc.contributor.authorKollias, Spyros-
dc.date.accessioned2018-04-10T15:05:16Z-
dc.date.available2018-04-10T15:05:16Z-
dc.date.issued2008-
dc.identifier.issn0195-6108de_CH
dc.identifier.issn1936-959Xde_CH
dc.identifier.issn1936-959Xde_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/5021-
dc.description.abstractBackground and Purpose: The inherent low anisotropy of gray matter and the lack of adequate imaging sensitivity and resolution has, so far, impeded depiction of axonal fibers to their intracortical origin or termination. We tested the hypothesis that an experimental approach with high-resolution diffusion tensor imaging (DTI) provides anisotropic data for fiber tractography with sufficient sensitivity to visualize in vivo the fine distribution of white matter bundles at the intracortical level. Materials and Methods: We conducted phantom measurements of signal-to-noise ratio (SNR) and obtained diffusion tensor maps of the occipital lobe in 6 healthy volunteers using a dedicated miniature phased array detector at 3T. We reconstructed virtual fibers using a standard tracking algorithm. Results: The coil array provided a SNR of 8.0 times higher at the head surface compared with a standard quadrature whole head coil. Diffusion tensor maps could be obtained with an in-plane resolution of 0.58 × 0.58 mm2. The axonal trajectories reconstructed from the diffusion data penetrate into the cortical ribbon perpendicular to the pial surface. This is the expected pattern for the terminations of thalamocortical afferent fibers to the middle layers of the occipital cortex and is consistent with the known microstructural organization of the mammalian cerebral cortex. Conclusion: High-resolution DTI reveals intracortical anisotropy with a distinct parallel geometrical order, perpendicular to the pial surface, consistent with structures that may be identified as the terminal afferents in cortical gray matter.de_CH
dc.language.isoende_CH
dc.publisherAmerican Society of Neuroradiologyde_CH
dc.relation.ispartofAmerican Journal of Neuroradiologyde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectAdultde_CH
dc.subjectAxonsde_CH
dc.subjectBrainde_CH
dc.subjectDiffusion Magnetic Resonance Imagingde_CH
dc.subjectFemalede_CH
dc.subjectHumansde_CH
dc.subjectImage enhancementde_CH
dc.subjectImage interpretation, computer-assistedde_CH
dc.subjectImaging, three-dimensionalde_CH
dc.subjectMalede_CH
dc.subjectNerve fibersde_CH
dc.subjectImaging phantomsde_CH
dc.subjectReproducibility of resultsde_CH
dc.subjectSensitivity and specificityde_CH
dc.subjectAlgorithmsde_CH
dc.subject.ddc616.8: Neurologie und Krankheiten des Nervensystemsde_CH
dc.titlePreliminary experience with visualization of intracortical fibers by focused high-resolution diffusion tensor imagingde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
dc.identifier.doi10.3174/ajnr.A0742de_CH
dc.identifier.pmid17947372de_CH
zhaw.funding.euNode_CH
zhaw.issue1de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end150de_CH
zhaw.pages.start146de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume29de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Järmann, T., De Zanche, N., Staempfli, P., Pruessmann, K. P., Valavanis, A., Boesiger, P., & Kollias, S. (2008). Preliminary experience with visualization of intracortical fibers by focused high-resolution diffusion tensor imaging. American Journal of Neuroradiology, 29(1), 146–150. https://doi.org/10.3174/ajnr.A0742
Järmann, T. et al. (2008) ‘Preliminary experience with visualization of intracortical fibers by focused high-resolution diffusion tensor imaging’, American Journal of Neuroradiology, 29(1), pp. 146–150. Available at: https://doi.org/10.3174/ajnr.A0742.
T. Järmann et al., “Preliminary experience with visualization of intracortical fibers by focused high-resolution diffusion tensor imaging,” American Journal of Neuroradiology, vol. 29, no. 1, pp. 146–150, 2008, doi: 10.3174/ajnr.A0742.
JÄRMANN, Thomas, Nicolas DE ZANCHE, P. STAEMPFLI, K.P. PRUESSMANN, A. VALAVANIS, P. BOESIGER und Spyros KOLLIAS, 2008. Preliminary experience with visualization of intracortical fibers by focused high-resolution diffusion tensor imaging. American Journal of Neuroradiology. 2008. Bd. 29, Nr. 1, S. 146–150. DOI 10.3174/ajnr.A0742
Järmann, Thomas, Nicolas De Zanche, P. Staempfli, K.P. Pruessmann, A. Valavanis, P. Boesiger, and Spyros Kollias. 2008. “Preliminary Experience with Visualization of Intracortical Fibers by Focused High-Resolution Diffusion Tensor Imaging.” American Journal of Neuroradiology 29 (1): 146–50. https://doi.org/10.3174/ajnr.A0742.
Järmann, Thomas, et al. “Preliminary Experience with Visualization of Intracortical Fibers by Focused High-Resolution Diffusion Tensor Imaging.” American Journal of Neuroradiology, vol. 29, no. 1, 2008, pp. 146–50, https://doi.org/10.3174/ajnr.A0742.


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