1. Leiden University Medical Center, Department of Radiology C2-S, Division of Image Processing, P.O. Box 9600, Leiden 2300 RC, The Netherlands
2. Leiden University Medical Center, Department of Medical Statistics and Bioinformatics, P.O. Box 9600, Leiden 2300 RC, The Netherlands
3. University of Southern Denmark, Institute of Forensic Medicine, Odense C 5000, Denmark
4. University College Lillebaelt, Conrad Research Center, Odense SØ 5220, Denmark
5. Leiden University Medical Center, Department of Radiology C2-S, Division of Image Processing, P.O. Box 9600, Leiden 2300 RC, The NetherlandseDelft University of Technology, Intelligent Systems Department, P.O. Box 5031, Delft 2600 GA, The Netherlands