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Voxel based analysis of tissue volume from MRI data

Imaging Science and Biomedical Engineering, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT, UK

View larger version (133K): [in a new window]   Figure 1. Several common MR acquisitions.

View larger version (80K): [in a new window]   Figure 2. Common methods for segmentations and boundary identification in a normal brain, (a) thresholding, (b) edge detection, (c) linear solution and (d) Bayesian estimation.

View larger version (138K): [in a new window]   Figure 3. Use of a semiautomatic boundary detector (Livewire).

View larger version (12K): [in a new window]   Figure 4. Models for (a) pure and (b) partial volume tissue distribution.

View larger version (31K): [in a new window]   Figure 5. (a) Tissue segmentation in the leg, (b) without and (c) with the use of local image slope.

View larger version (81K): [in a new window]   Figure 6. (a) Tissue segmentation in the normal brain, (b) without and (c) with the use of local slope information.

View larger version (118K): [in a new window]   Figure 7. Correction of field inhomogeneity on the assumption of homogeneous tissue regions in the shoulder and around the orbit.

View larger version (22K): [in a new window]   Figure 8. Algorithm selection flow chart.