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dc.contributor.authorStämpfli, Philipp-
dc.contributor.authorReischauer, Caroline-
dc.contributor.authorJärmann, Thomas-
dc.contributor.authorValavanis, A.-
dc.contributor.authorKollias, S.-
dc.contributor.authorBoesiger, P.-
dc.date.accessioned2018-04-10T14:30:19Z-
dc.date.available2018-04-10T14:30:19Z-
dc.date.issued2008-01-
dc.identifier.issn1053-8119de_CH
dc.identifier.issn1095-9572de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/5010-
dc.description.abstractA powerful, non-invasive technique for estimating and visualizing white matter tracts in the human brain in vivo is white matter fiber tractography that uses magnetic resonance diffusion tensor imaging. The success of this method depends strongly on the capability of the applied tracking algorithm and the quality of the underlying data set. However, DTI-based fiber tractography still lacks standardized validation. In the present work, a combined fMRI/DTI study was performed, both to develop a setup for verifying fiber tracking results using fMRI-derived functional connections and to explore the limitations of fMRI based DTI fiber tracking. Therefore, a minor fiber bundle that features several fiber crossings and intersections was examined: The striatum and its connections to the primary motor cortex were examined by using two approaches to derive the somatotopic organization of the striatum. First, an fMRI-based somatotopic map of the striatum was reconstructed, based on fMRI activations that were provoked by unilateral motor tasks. Second, fMRI-guided DTI fiber tracking was performed to generate DTI-based somatotopic maps, using a standard line propagation and an advanced fast marching algorithm. The results show that the fiber connections reconstructed by the advanced fast marching algorithm are in good agreement with known anatomy, and that the DTI-revealed somatotopy is similar to the fMRI somatotopy. Furthermore, the study illustrates that the combination of fMRI with DTI can supply additional information in order to choose reasonable seed regions for generating functionally relevant networks and to validate reconstructed fibers.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofNeuroImagede_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectAdultde_CH
dc.subjectBrain mappingde_CH
dc.subjectCorpus striatumde_CH
dc.subjectEvoked potentials, motorde_CH
dc.subjectFemalede_CH
dc.subjectHumansde_CH
dc.subjectImage interpretation, computer-assistedde_CH
dc.subjectMagnetic Resonance Imagingde_CH
dc.subjectMalede_CH
dc.subjectMotor cortexde_CH
dc.subjectNerve fibersde_CH
dc.subjectSubtraction techniquede_CH
dc.subject.ddc616.8: Neurologie und Krankheiten des Nervensystemsde_CH
dc.titleCombining fMRI and DTI : a framework for exploring the limits of fMRI-guided DTI fiber tracking and for verifying DTI-based fiber tractography resultsde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
dc.identifier.doi10.1016/j.neuroimage.2007.08.025de_CH
dc.identifier.pmid17931889de_CH
zhaw.funding.euNode_CH
zhaw.issue1de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end126de_CH
zhaw.pages.start119de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume39de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Stämpfli, P., Reischauer, C., Järmann, T., Valavanis, A., Kollias, S., & Boesiger, P. (2008). Combining fMRI and DTI : a framework for exploring the limits of fMRI-guided DTI fiber tracking and for verifying DTI-based fiber tractography results. NeuroImage, 39(1), 119–126. https://doi.org/10.1016/j.neuroimage.2007.08.025
Stämpfli, P. et al. (2008) ‘Combining fMRI and DTI : a framework for exploring the limits of fMRI-guided DTI fiber tracking and for verifying DTI-based fiber tractography results’, NeuroImage, 39(1), pp. 119–126. Available at: https://doi.org/10.1016/j.neuroimage.2007.08.025.
P. Stämpfli, C. Reischauer, T. Järmann, A. Valavanis, S. Kollias, and P. Boesiger, “Combining fMRI and DTI : a framework for exploring the limits of fMRI-guided DTI fiber tracking and for verifying DTI-based fiber tractography results,” NeuroImage, vol. 39, no. 1, pp. 119–126, Jan. 2008, doi: 10.1016/j.neuroimage.2007.08.025.
STÄMPFLI, Philipp, Caroline REISCHAUER, Thomas JÄRMANN, A. VALAVANIS, S. KOLLIAS und P. BOESIGER, 2008. Combining fMRI and DTI : a framework for exploring the limits of fMRI-guided DTI fiber tracking and for verifying DTI-based fiber tractography results. NeuroImage. Januar 2008. Bd. 39, Nr. 1, S. 119–126. DOI 10.1016/j.neuroimage.2007.08.025
Stämpfli, Philipp, Caroline Reischauer, Thomas Järmann, A. Valavanis, S. Kollias, and P. Boesiger. 2008. “Combining fMRI and DTI : A Framework for Exploring the Limits of fMRI-Guided DTI Fiber Tracking and for Verifying DTI-Based Fiber Tractography Results.” NeuroImage 39 (1): 119–26. https://doi.org/10.1016/j.neuroimage.2007.08.025.
Stämpfli, Philipp, et al. “Combining fMRI and DTI : A Framework for Exploring the Limits of fMRI-Guided DTI Fiber Tracking and for Verifying DTI-Based Fiber Tractography Results.” NeuroImage, vol. 39, no. 1, Jan. 2008, pp. 119–26, https://doi.org/10.1016/j.neuroimage.2007.08.025.


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