Dose Verification in Intensity Modulation Radiation Therapy: A Fractal Dimension Characteristics Study

Figure 4

The law seems to be relevant of scale verse tarea on left hand side in this figure, which is a power law of the form 𝑦∝𝑥^𝑑 (where 𝑦 denotes the length, 𝑥 denote the scale, and d is the dimension). Take the logarithm of the length of each region of interest and logarithm (1/scale), and then plot log(length) against log(1/scale); then the slope is in the form 𝑦=𝑎𝑥+𝑏. The slope can represent the unique characteristics of the curve.