Acknowledgments

This work was made possible with the help of EU INTAS-96-785 grant, which is gratefully acknowledged. Most of the material in this chapter is reproduced with kind permission from IEEE, as it was originally published in [19].

FIGURE 13 Monitoring change in various pathological cases, with the help of feature F3. Underneath each pair of bars, which represent F3 for the same patient but with time lapse between the two scans, we show two corresponding slices from the 3D scans. (a) MR-t2 images obtained from a multiple sclerosis patient with 2 months' time lapse. (b) MR-t2 images of an acute stroke patient obtained with 6 days' difference. (c) MR-t2 images of a patient with Creutzfeld-Jakob disease with 2 months' time lapse. (d) MR-t2 images of a patient with meningioma with 2 months' time lapse. (e) CT images of a patient with acute stroke due to embolism obtained with 4 days' difference. (f) Two SPECT-Tc images of a patient with AIDS dementia, with 8 months' time lapse. (g) MR-t2 images of a patient with cavernous hemangioma with 4 months' time lapse. (h) Same as in (g) but only the tumor area considered.

FIGURE 13 Monitoring change in various pathological cases, with the help of feature F3. Underneath each pair of bars, which represent F3 for the same patient but with time lapse between the two scans, we show two corresponding slices from the 3D scans. (a) MR-t2 images obtained from a multiple sclerosis patient with 2 months' time lapse. (b) MR-t2 images of an acute stroke patient obtained with 6 days' difference. (c) MR-t2 images of a patient with Creutzfeld-Jakob disease with 2 months' time lapse. (d) MR-t2 images of a patient with meningioma with 2 months' time lapse. (e) CT images of a patient with acute stroke due to embolism obtained with 4 days' difference. (f) Two SPECT-Tc images of a patient with AIDS dementia, with 8 months' time lapse. (g) MR-t2 images of a patient with cavernous hemangioma with 4 months' time lapse. (h) Same as in (g) but only the tumor area considered.

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