Segmentation of visceral and subcutaneous adipose tissue in abdominal CT-datasets with and without contrast medium: Influence of iterative reconstruction on 2D- and 3D-segmentation

Adipose tissue segmentation between IR and FBP revealed minimal and only occasionally yields statistically significant differences in density and quantity across adipose tissue compartments and contrast phases. The observed differences were very small, casting doubt on their clinical relevance at the level of individual patients. However, even subtle systematic variations may warrant consideration in population-based studies or longitudinal research where methodological consistency is critical.