Neuroscience 2002 Abstract
| Presentation Number: | 404.1 |
|---|---|
| Abstract Title: | AUTOMATED EXTRACTION AND IDENTIFICATION OF HUMAN BRAIN LONGITUDINAL FISSURE MEDIAL SURFACE FROM T1-WEIGHTED MRI DATA. |
| Authors: |
Shan, Z.*1
; Liu, J.1
; Yue, G.1
1Biomed Engineering, Cleveland Clinic Foundation, Cleveland, OH |
| Primary Theme and Topics |
Techniques in Neuroscience - Staining, tracing and imaging techniques |
| Session: |
404. Staining, tracing, and imaging techniques IV Poster |
| Presentation Time: | Monday, November 4, 2002 1:00 PM-2:00 PM |
| Location: | Hall A2-B3 Z-38 |
| Keywords: | longitudinal cerebral fissure, sulci, brain, MRI |
Cerebral sulci are often used as landmarks in identifying brain anatomical structures, therefore correct detection and identification of cortical sulci are important in brain anatomical research. Here we present a fuzzy logic method to identify medial surfaces of the longitudinal fissure. The main sulcal medial surfaces were extracted by a sequence of image analysis steps: (1) A white matter (WM) segmentation was performed to make sulcal indentations more prominent. (2) A morphological closing was performed to obtain an ideally smoothed surface. (3) Sulcal separations were accomplished by subtracting the WM from the morphologically closed image. (4) Sulcal medial surfaces were obtained by applying a 3-D thinning on the sulcal separations. Knowledge of anatomical characteristics of the longitudinal cerebral fissure medial surfaces, i.e., shape, position, length, was encoded into fuzzy membership functions. The fuzzy degrees of the functions were calculated separately. A threshold was applied to the sum of the fuzzy degrees for more obvious identification. The algorithm was applied to T1-weighted coronal MR images of ten healthy subjects. The longitudinal cerebral fissure medial surfaces were identified and overlaid onto the original image. Visual inspection showed that the longitudinal cerebral fissure medial surfaces were successfully identified.
Supported by NIH grants NS37400 and HD36725
Sample Citation:
[Authors]. [Abstract Title]. Program No. XXX.XX. 2002 Neuroscience Meeting Planner. Orlando, FL: Society for Neuroscience, 2002. Online.
Copyright © 2002-2026 Society for Neuroscience; all rights reserved. Permission to republish any abstract or part of any abstract in any form must be obtained in writing by SfN office prior to publication.
