講演抄録/キーワード |
講演名 |
2009-01-20 17:25
Morphometry of 4D Eigen Spectral Images for Characterizing Spatio-temporal Properties of Intratumoral Enhancement Patterns in Dynamic Contrast-enhanced Breast MRI ○Sang Ho Lee・Jong Hyo Kim・Yun Sub Jung・Jeong Joo Song(Seoul National Univ.)・Jeong Seon Park(Hanyang Univ.)・Nariya Cho・Woo Kyung Moon(Seoul National Univ.) MI2008-129 |
抄録 |
(和) |
This study was designed to characterize the spatio-temporal properties of intratumoral enhancement patterns on 4D eigen spectral images for MR-based breast tumor diagnosis. MR-time-series were registered for movement compensation and tumor regions were segmented semi-automatically from our proposed perfusion index map. Eigenvalues were obtained for temporal enhancement curves for each voxel within tumor by using singular value decomposition (SVD), generating eigenvalue maps. The spatial variations of intratumoral eigenvalues were captured by 3D moment invariants. The influence on mophometric features of eigenvalue maps in tumor differentiation is validated by classification performance using linear discriminant analysis and leave-one-out cross validation. |
(英) |
This study was designed to characterize the spatio-temporal properties of intratumoral enhancement patterns on 4D eigen spectral images for MR-based breast tumor diagnosis. MR-time-series were registered for movement compensation and tumor regions were segmented semi-automatically from our proposed perfusion index map. Eigenvalues were obtained for temporal enhancement curves for each voxel within tumor by using singular value decomposition (SVD), generating eigenvalue maps. The spatial variations of intratumoral eigenvalues were captured by 3D moment invariants. The influence on mophometric features of eigenvalue maps in tumor differentiation is validated by classification performance using linear discriminant analysis and leave-one-out cross validation. |
キーワード |
(和) |
Dynamic Contrast-enhanced Breast MRI / Spatio-temporal Characterization / Eigen Spectral Analysis / Singular Value Decomposition (SVD) / 3D Moment Descriptors / / / |
(英) |
Dynamic Contrast-enhanced Breast MRI / Spatio-temporal Characterization / Eigen Spectral Analysis / Singular Value Decomposition (SVD) / 3D Moment Descriptors / / / |
文献情報 |
信学技報, vol. 108, no. 385, MI2008-129, pp. 315-318, 2009年1月. |
資料番号 |
MI2008-129 |
発行日 |
2009-01-12 (MI) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
MI2008-129 |