Longitudinal segmentation of age-related white matter hyperintensities

Publication date: Available online 24 February 2017
Source:Medical Image Analysis
Author(s): Carole H. Sudre, M.Jorge Cardoso, Sebastien Ourselin
Although white matter hyperintensities evolve in the course of ageing, few solutions exist to consider the lesion segmentation problem longitudinally. Based on an existing automatic lesion segmentation algorithm, a longitudinal extension is proposed. For evaluation purposes, a longitudinal lesion simulator is created allowing for the comparison between the longitudinal and the cross-sectional version in various situations of lesion load progression. Finally, applied to clinical data, the proposed framework demonstrates an increased robustness compared to available cross-sectional methods and findings are aligned with previously reported clinical patterns.

Graphical abstract

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