1. A method of formulating a patient-specific plan for a diagnostic or therapeutic procedure to be performed upon a patient, the method comprising the steps of: obtaining a standard plan based upon a model of an anatomy of a human specimen having average anatomical features and characteristics, the model defining a standard model; scanning the patient prior to performing the procedure to obtain a patient-specific scan of an anatomy of the patient; morphing the standard model to the anatomy of the patient by mapping the standard model to the patient-specific scan; and determining the patient-specific plan by modifying the standard plan based upon the mapping.