Research Article
Evaluation of a Nonrigid Motion Compensation Technique Based on Spatiotemporal Features for Small Lesion Detection in Breast MRI
Table 6
Areas under the ROC curves for spatio-temporal features using FLDA. The rows represent the motion compensation as given in Table
1.
| | Feature type | Area under the ROC curve (%) | | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| | RSIE st. dev. | 56.7 | 52.5 | 55.0 | 52.3 | 48.1 | 52.5 | 55.5 | 58.4 | 55.3 | | RSIE st. dev. | 64.9 | 65.8 | 68.5 | 62.8 | 63.7 | 66.6 | 66.8 | 69.5 | 64.5 | | RSIE st. dev. | 64.7 | 70.6 | 70.0 | 64.9 | 68.3 | 69.7 | 65.8 | 66.8 | 69.5 |
| | RSIE entropy | 80.9 | 84.2 | 85.3 | 83.0 | 79.4 | 84.5 | 81.3 | 81.5 | 83.4 | | RSIE entropy | 77.9 | 87.4 | 81.9 | 80.7 | 76.7 | 83.8 | 78.8 | 77.3 | 78.4 | | RSIE entropy | 74.6 | 79.8 | 81.7 | 81.7 | 73.3 | 81.5 | 76.3 | 76.9 | 73.5 |
| | Contour RSIE mean | 54.4 | 51.7 | 52.7 | 52.3 | 54.0 | 55.7 | 52.7 | 52.7 | 55.5 | | Contour RSIE mean | 63.7 | 56.9 | 62.8 | 59.2 | 61.1 | 59.5 | 59.5 | 59.0 | 59.9 | | Contour RSIE mean | 62.2 | 64.9 | 60.3 | 68.5 | 68.7 | 62.6 | 63.9 | 62.6 | 66.6 |
| | Contour RSIE st. dev. | 55.3 | 57.4 | 58.0 | 52.1 | 55.7 | 58.0 | 55.0 | 57.4 | 57.8 | | Contour RSIE st. dev. | 58.4 | 59.9 | 57.1 | 56.7 | 61.3 | 60.7 | 58.6 | 56.9 | 62.4 | | Contour RSIE st. dev. | 63.7 | 63.2 | 67.6 | 60.5 | 65.1 | 58.6 | 58.2 | 66.2 | 64.3 |
| | Contour RSIE entropy | 77.5 | 81.3 | 77.1 | 74.2 | 76.9 | 77.1 | 74.8 | 75.4 | 74.4 | | Contour RSIE entropy | 83.2 | 84.5 | 82.8 | 79.8 | 77.9 | 84.9 | 77.5 | 81.3 | 79.6 | | Contour RSIE entropy | 80.5 | 81.3 | 78.2 | 80.7 | 72.9 | 79.6 | 78.2 | 77.5 | 78.4 |
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