Abstract: A system for determining the alignment measurement of the foot and ankle is disclosed. The system uses data representative of a three dimensional scanned image of a patient's foot and ankle while the patient was applying weight on the foot. Next the system detects the three dimensional coordinates associated with at least three predetermined landmarks on the patent's foot in the scanned image. A ground plane is determined using the predetermined landmarks. A center of a talar dome is determined in the scanned data. An ankle offset lever arm id determined from the set of landmarks and center of the talar dome.

Abstract: A system for determining the alignment measurement of the foot and ankle is disclosed. The system uses data representative of a three dimensional scanned image of a patient's foot and ankle while the patient was applying weight on the foot. Next the system detects the three dimensional coordinates associated with at least three predetermined landmarks on the patent's foot in the scanned image. A ground plane is determined using the predetermined landmarks. A center of a talar dome is determined in the scanned data. An ankle offset lever arm id determined from the set of landmarks and center of the talar dome.

Abstract: A system is disclosed for assessing or depicting the degree of bone fusion in an area. The system involves receiving three dimensional image data from a patient of a portion of a patient's body. Using the data, the scanned portion of the patient's body is reconstructed. The system permits a user to select a volume within the reconstructed volume which defines a volume of interest. The density of each voxel is detected within the volume of interest. An analysis is conducted on the voxel densities to determine the amount of fusion that has occurred, the higher the density in a prescribed area the greater the amount of fusion that has occurred. The system generates a depiction of the density.

Abstract: An arrangement for filing and retrieving data of a plurality of mutually remote data sources which are connected to a remote central file-storage system by a public, wide-area transmission network. Mutually separable storage fields are maintained in the central file-storage system by allocating separate storage fields to the data of each of the remote data sources by a user filter coupled to the file storage system to ensure that every user can transfer in the central file system only in his field. An access authorization code transmitted from a remote data source is compared to an access code stored in the file-storage system to permit access by a remote data source to the separate storage fields allocated to the data source seeking access.