Comment on "Developing DCE-CT to Quantify Intra-Tumor Heterogeneity in Breast Tumors With Differing Angiogenic Phenotype". - Andrij Abramyuk; Gunter Wolf; Volker Hietschold; Ulrike Haberland; Joerg van den Hoff; Nasreddin Abolmaali (IEEE Trans. Medical Imaging, 2010)