2001 Fiscal Year Final Research Report Summary
A new framework for multiscale and multiorientation image analysis and its application to medical volume data analysis
| Project/Area Number |
11680389
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Intelligent informatics
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| Research Institution | Osaka University |
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Principal Investigator |
SATO Yoshinobu Osaka University Graduate School of Medicine, Associate Professor, 医学系研究科, 助教授 (70243219)
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| Co-Investigator(Kenkyū-buntansha) |
TAMURA Shinichi Osaka University Graduate School of Medicine, Professor, 医学系研究科, 教授 (30029540)
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| Project Period (FY) |
1999 – 2001
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| Keywords | quantification / image measurement / blood vessels / pulmonary nodules / articular cartilage / accuracy validation / Thickness / diameter |
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| Research Abstract |
This project investigated a basic framework and clinical applications for the enhancement, segmentation, and quantification of line-like shapes such as blood vessels and sheet-like shapes such as articular cartilage in medical volume data. Based on multiscale Gaussian filters and the Hessian matrix of the volume function, line and sheet structures with various widths are enhanced. Local intensity structures are represented as continuous functions by further combining the gradient vectors. Medial axis/surface elements are locally determined based on the second-order approximations of local intensity structures. Diameter/thickness quantification is performed based on detected medial axis/surface elements, and various widths of structures are combined through multiscale integration. The utility of the framework was demonstrated by applications to the characterization of pulmonary nodules based on the spatial distribution of vessels surrounding pulmonary nodules, and articular cartilage thickness determination using real computed tomography (CT) and magnetic resonance (MR) volume data.
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Research Products
(14 results)
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[Publications] Sato Y, Kubota T, Nakanishi K, Tanaka H, Sugano N, Nishii T, Ohzono K, Nakamura H, Ochi T, Tamura S: "Three-dimensional reconstruction and quantification of hip joint cartilages from magnetic resonanceimages"Lecture Notes in Computer Science (Proc. Second International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI'99), Cambridge, UK). 1679. 338-347 (1999)
Description
「研究成果報告書概要(和文)」より
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[Publications] Sato Y, Nakanishi K, Tanaka H, Nishii T, Sugano N, Nakamura H, Ochi T, Tamura S: "Limits to the Accuracy of 3D Thickness Measurement in Magnetic Resonance Images"Lecture Notes in Computer Science, (Proc. Forth International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI2001), Utrecht, The Netherlands). 2208. 803-810 (2001)
Description
「研究成果報告書概要(和文)」より
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[Publications] Sato Y., Kubota T., Nakanishi K., Tanaka, H., Sugano N, Nishii, T., Ohzono K., Nakamura., Ochi T., and Tamura, S.: "Three-dimensional reconstruction and quantification of hip joint cartilages from magnetic resonance images"Lecture Notes in Computer Science (Proc. Second International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI'99), Cambridge, UK.. Vol. 1679. 338-347 (1999)
Description
「研究成果報告書概要(欧文)」より
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