PXMOD Implementation

Acquisition and Data Requirements

Image Data

Any volume data. Note: if the study is dynamic only the z-score image of the first frame is calculated.

Model Preprocessing

Mean and standard deviation of the pixel values are needed for the z-score calculations. It is reasonable to restrict their calculation to a sub-volume within tissue. This can be done by specifying an appropriate VOI, or a % threshold.

PXMOD z Score Model Pre-Processing

Map Parameters

PXMOD z Score Model Parameters

z	The original pixel value is transformed into a z-score value according to the equation: z-score = (value-mean)/standard_deviation.