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- W77989848 abstract "r~~~~~~~~/sinf~~~~riolrOngltudlnal fasciculi, uncinate fronto-occipital fasciculus), internal and external causules (including outic radiations, cortico-spinal/cbrticobulbar tract, and anterior thalamic radiation), and limbic systems. The results were compared to the best available histological knowledge to validate the technique. The measurements were repeated more than three times for three healthy volunteers and intraindividual re reducibility f was investigated. In addition, detar s of fiber reconstruction techniques and optimal DTI protocols to ameliorate limitations in the imaging resolution and scanning time in clinical situation will be discussed. Methods and Materials All studies were performed using a 1.5 T Philips Gyroscan NT system. DTI imaging was performed using multislice segmented EPI with cardiac gating and navigator echo phase correction. A data matrix of 128 x 95 was obtained using 15-echo acquisition per every excitation. Slice thickness was 1.5-3.2 mm without gaps. DTI was performed using 6 independent combinations of gradient directions. Intensities at each nixel of multinle diffusionweighted images were fitted to L obtain three eigenvalues and eigenvectors. More than 12 welldocumented majo; white matter tracts were identified from anatomical landmarks. Tracking was performed using the FACT method4. The reconstruction results were then histological knowledge. For compared to intra-individual reproducibility studies, DTI studies were repeated more than three times for three normal subjects and images were co-registered. Seed pixels for tracking were chosen in identical locations among the different measurements and deviations in the tracking trajectories were measured." @default.
- W77989848 created "2016-06-24" @default.
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- W77989848 date "2000-01-01" @default.
- W77989848 modified "2023-09-24" @default.
- W77989848 title "Three-Dimensional Reconstruction of in vivo Human White Matter Tracts" @default.
- W77989848 hasPublicationYear "2000" @default.
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