Fig. 1
From: Fractal frontiers in cardiovascular magnetic resonance: towards clinical implementation
Exact self-similar elements cannot always be recognized in naturally occurring fractals. The spiral galaxy (a) is an example of a large-scale fractal in the physical world. Biology is full of fractal objects: from the whorls of molluscs (b), to the woven lattice of human cancellous bone (c); from the branching pulmonary arterial tree (d) to the trabeculated apex of the left ventricle (e). CMR = cardiovascular magnetic resonance