Literature DB >> 16398415

Cluster analysis of dynamic cerebral contrast-enhanced perfusion MRI time-series.

A Wismüller1, A Meyer-Baese, O Lange, M F Reiser, G Leinsinger.   

Abstract

We performed neural network clustering on dynamic contrast-enhanced perfusion magnetic resonance imaging time-series in patients with and without stroke. Minimal-free-energy vector quantization, self-organizing maps, and fuzzy c-means clustering enabled self-organized data-driven segmentation with respect to fine-grained differences of signal amplitude and dynamics, thus identifying asymmetries and local abnormalities of brain perfusion. We conclude that clustering is a useful extension to conventional perfusion parameter maps.

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Year:  2006        PMID： 16398415     DOI： 10.1109/TMI.2005.861002

Source DB:  PubMed          Journal:  IEEE Trans Med Imaging        ISSN： 0278-0062            Impact factor:   10.048


  22 in total

1.  Introducing Anisotropic Minkowski Functionals and Quantitative Anisotropy Measures for Local Structure Analysis in Biomedical Imaging.

Authors:  Axel Wismüller; Titas De; Eva Lochmüller; Felix Eckstein; Mahesh B Nagarajan
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2013-03-29

2.  Predicting the Biomechanical Strength of Proximal Femur Specimens through High Dimensional Geometric Features and Support Vector Regression.

Authors:  Chien-Chun Yang; Mahesh B Nagarajan; Markus B Huber; Julio Carballido-Gamio; Jan S Bauer; Thomas Baum; Felix Eckstein; Eva Lochmüller; Sharmila Majumdar; Thomas M Link; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2013-03

3.  Mutual Connectivity Analysis (MCA) Using Generalized Radial Basis Function Neural Networks for Nonlinear Functional Connectivity Network Recovery in Resting-State Functional MRI.

Authors:  Adora M DSouza; Anas Zainul Abidin; Mahesh B Nagarajan; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2016-03-29

4.  Large-Scale Granger Causality Analysis on Resting-State Functional MRI.

Authors:  Adora M DSouza; Anas Zainul Abidin; Lutz Leistritz; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2016-03

5.  Investigating Changes in Resting-State Connectivity from Functional MRI Data in Patients with HIV Associated Neurocognitive Disorder Using MCA and Machine Learning.

Authors:  Adora M DSouza; Anas Z Abidin; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2017-03-13

6.  Investigating the use of mutual information and non-metric clustering for functional connectivity analysis on resting-state functional MRI.

Authors:  Xixi Wang; Mahesh B Nagarajan; Anas Z Abidin; Adora DSouza; Susan K Hobbs; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2015-03-17

7.  Characterizing healthy and osteoarthritic knee cartilage on phase contrast CT with geometric texture features.

Authors:  Mahesh B Nagarajan; Paola Coan; Markus B Huber; Paul C Diemoz; Christian Glaser; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2013-03-29

8.  Detecting Altered connectivity patterns in HIV associated neurocognitive impairment using Mutual Connectivity Analysis.

Authors:  Anas Zainul Abidin; Adora M D'Souza; Mahesh B Nagarajan; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2016-03-29

9.  Characterizing Trabecular Bone structure for Assessing Vertebral Fracture Risk on Volumetric Quantitative Computed Tomography.

Authors:  Mahesh B Nagarajan; Walter A Checefsky; Anas Z Abidin; Halley Tsai; Xixi Wang; Susan K Hobbs; Jan S Bauer; Thomas Baum; Axel Wismüller
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2015-03-17

10.  Nonlinear Functional Connectivity Network Recovery in the Human Brain with Mutual Connectivity Analysis (MCA): Convergent Cross-Mapping and Non-Metric Clustering.

Authors:  Axel Wismüller; Anas Z Abidin; Adora M DSouza; Xixi Wang; Susan K Hobbs; Lutz Leistritz; Mahesh B Nagarajan
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2015-03-17
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