Instability index for chromosome 10 to 18. The instability index, indicating regions of clustered, narrow peaks of chromosomal rearrangements located at a chromosome arm or entire chromosome, was calculated for all samples for all chromosomes. Sample 085 shows highest instability index for chromosome 11 and 12 for all platforms, followed by sample 053 in chromosome 11. For chromosome 14 sample 263 has the highest instability index, for chromosome 15 sample 148. Small differences are seen for chromosome 17, here, the Agilent and ROMA/NimbleGen platforms indicate that sample 053 has the highest index, however, using the Illumina platform, sample 148 has the highest value. (Samples with high instability index (>2) are colored: Sample 053 = red, sample 085 = green, sample 148 = violet, and sample 236 = blue).