Segmentation of magnetic resonance images to construct human head model for diffuse optical imaging

Kazuki Kurihara; Hiroshi Kawaguchi; Yosuke Takahashi; Takayuki Obata; Eiji Okada

doi:10.1117/12.889813

17 June 2011 Segmentation of magnetic resonance images to construct human head model for diffuse optical imaging

Kazuki Kurihara, Hiroshi Kawaguchi, Yosuke Takahashi, Takayuki Obata, Eiji Okada

Proceedings Volume 8088, Diffuse Optical Imaging III; 80880J (2011) https://doi.org/10.1117/12.889813
Event: European Conferences on Biomedical Optics, 2011, Munich, Germany

Abstract

The brain activation image obtained by diffuse optical tomography (DOT) is obtained by solving inverse problem using the spatial sensitivity profile (SSP). The SSP can be obtained from the analysis of the light propagation using threedimensional head models. The head model is based upon segmented magnetic resonance (MR) image and there are several types of software based on binarization for segmentation of MR head images. We segmented superficial tissues which effect the light propagation in human head from MR images acquired with FATSAT and FIESTA pulse sequences by using region growing algorithm and morphological operation to facilitate the construction of the individual head models for DOT. The pixel intensity distribution of these images has appropriate characteristics to extract the superficial tissues by using algorithm based on binarization. The result of extraction was compared with the extraction from T2-weighted image which is commonly used to extract superficial tissues. The result of extraction from FATSAT or FIESTA image agree well with ground truth determined by manual segmentation.

Citation Download Citation

Kazuki Kurihara, Hiroshi Kawaguchi, Yosuke Takahashi, Takayuki Obata, and Eiji Okada "Segmentation of magnetic resonance images to construct human head model for diffuse optical imaging", Proc. SPIE 8088, Diffuse Optical Imaging III, 80880J (17 June 2011); https://doi.org/10.1117/12.889813

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KEYWORDS

Image segmentation

Magnetic resonance imaging

Head

Skull

Tissues

Brain

Magnetism

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