14 June 1996 Fuzzy neural-network-based segmentation of multispectral magnetic-resonance brain images
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Abstract
This study investigates the applicability of a multimodular neuro-fuzzy system in the multispectral analysis of magnetic resonance (MR) images of the human brain. The system consists of two components: an unsupervised neural module for image segmentation in tissue regions and a supervised module for tissue labeling. The former is the fuzzy Kohonen clustering network (FKCN). The latter is a feed-forward network based on the back-propagation learning rule. The results obtained with the FKCN have been compared with those extracted by a self organizing map (SOM). The system has been used to analyze the multispectral MR brain images of a healthy volunteer. The data set included the proton density (PD), T2, T1 weighted spin-echo (SE) bands and a new T1- weighted three dimensional sequence, i.e. the magnetization- prepared rapid gradient echo (MP-RAGE). One of the main objectives of this study has been to evaluate the usefulness of brain imaging with the MP-RAGE sequence in view of automatic tissue classification. To this purpose, a quantitative evaluation has been provided on the base of some labeled areas selected interactively by a neuro- radiologist from the input raw images. Quantitative results seem to indicate that the MP-RAGE sequence may provide higher tissue separability than the T1-weighted SE sequence.
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Palma N. Blonda, Palma N. Blonda, A. Bennardo, A. Bennardo, Giuseppe Satalino, Giuseppe Satalino, Guido Pasquariello, Guido Pasquariello, Roberto Alberto De Blasi, Roberto Alberto De Blasi, D. Milella, D. Milella, "Fuzzy neural-network-based segmentation of multispectral magnetic-resonance brain images", Proc. SPIE 2761, Applications of Fuzzy Logic Technology III, (14 June 1996); doi: 10.1117/12.243248; https://doi.org/10.1117/12.243248
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