TY - RPRT TI - Image stacking with entropy values in conventional angiography: initial experience. AU - Holger Schmitt AU - Michael Grass AU - Sabine Heiland AU - Stefan Hahnel AU - Klaus Sartor PY - 2003 DO - 10.1148/radiol.2301021409 UR - https://pubmed.ncbi.nlm.nih.gov/14645884/ ID - 14645884 ER -