1. A system for performing a constructal analysis, the system comprising a processor and a memory to perform a method comprising: initiating capture of an image of a subject; where the subject comprises an apparent random pathway, pattern, or network; where the apparent random pathway, pattern or network comprises a flow field; initiating at least one image processing algorithm on the image; identifying at least one apparent random pathway, pattern, network, or one series of events in the image; identifying a center and at least one endpoint associated with the at least one apparent random pathway, pattern, network, or the event in the image; calculating a path length associated with the at least one apparent random pathway, pattern, network, or the event in the image; calculating at least one statistical measure associated the at least one apparent random pathway, pattern, network, or the one series of events in the image; where the statistical measure is calculated by constructal analysis; and correlating the at least one statistical measure with a plurality of respective other statistical measures of at least one other apparent random pathway, pattern, network, or the one series of events in the subject or in another subject.