Development of a Method for Reconstructing Three-dimensional Data from Axial, Sagittal, and Coronal MR Images
スポンサーリンク
概要
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Magnetic resonance (MR) imaging is useful for the diagnosis of brain atrophy and intracranial abnormalities. We have developed a method of automated volumetry to evaluate the degree of brain atrophy for the diagnosis of dementia. Whole-brain MR images with thin slices without gaps are required for segmentation and volumetry. However, obtaining such images requires that the patient remain at rest for a prolonged period, thereby reducing the throughput of MR imaging examinations. Therefore, a method is needed for the reconstruction of isotropic three-dimensional (3D) data using routine axial, sagittal, and coronal MR images with 30% gaps and measurement of brain volume. The method of reconstructing 3D data consists of four processes: 1) segmentation of the brain region on axial, sagittal, and coronal MR images using the region-growing technique; 2) setting data to a 3D domain; 3) registration by manual operation; and 4) interpolation between the data based on linear interpolation. In clinical MR images, the differences between this method and the conventional technique were less than 10%. These results demonstrate that this technique is able to construct 3D data from axial, sagittal, and coronal MR images.
- 公益社団法人日本放射線技術学会の論文
- 2006-04-20
著者
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HAYASHI Norio
Department of Biochemistry, Tohoku University School of Medicine
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SANADA Shigeru
Graduate School of Health Sciences, Kanazawa University
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Matsuura Yukihiro
Department of Radiology, Kanazawa University Hospital
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Sanada Shigeru
Department Of Radiological Technology Graduate School Of Medical Sciences Kanazawa University
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Sanada Shigeru
Graduate School Of Health Sciences Kanazawa University
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Matsuura Yukihiro
Department Of Radiological Technology Kanazawa University Hospital
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KAWAHARA Kazuhiro
Department of Radiological Technology, Kanazawa University Hospital
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TSUJII Hideo
Department of Radiological Technology, Kanazawa University Hospital
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YAMAMOTO Tomoyuki
Department of Radiological Technology, Kanazawa University Hospital
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Yamamoto Tomoyuki
Department Of Radiological Technology Kanazawa University Hospital
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Hayashi Norio
Department Of Radiological Technology Kanazawa University Hospital
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Tsujii Hideo
Department Of Radiological Technology Kanazawa University Hospital
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Hayashi Norio
Department Of Biochemistry Tohoku University School Of Medicine
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Suzuki Masayuki
Graduate School of Medical Science, Kanazawa University
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Koshida Kichiro
Department Of Radiological Technology Kanazawa University Hospital
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Suzuki Masayuki
Department Of Radiological Technology Graduate School Of Medical Sciences Kanazawa University
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Hayashi Norio
Department Of Biochemistry School Of Medicine Tohoku University
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Yamamoto Tomoyuki
Department of Materials Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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YAMAMOTO Tomoyuki
Department of Chemistry, Graduate School of Science, Hiroshima University
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