1. A method for obtaining a probabilistic diagnosis of a patient, the method comprising: scanning some or all of a patient to obtain a medical image; identifying one or more designated key features in the medical image; assigning discrete values to the one or more designated key features in the patient scan to form a patient scan key feature pattern; transmitting the patient scan key feature pattern to a processor programmed to match the patient scan key feature pattern to one or more known disease specific key feature patterns to create a probabilistic diagnosis; and transmitting the probabilistic diagnosis to a user.