Abstract: A security system for digital x-ray images is disclosed. In one example system, a direct capture digital x-ray imaging device is used to capture digital x-ray images. The direct capture digital x-ray imaging device then associates an identifier with the image. This identifier identifies the source of the image as being that particular device. In some example systems, the identifier is used to create a digital signature that identifies that particular image as being from that particular device. Some systems optionally include image encryption and/or compression.

Abstract: A filmless digital x-ray cassette comprising the following. A standard sized x-ray cassette housing having external dimensions approximately equal to the external dimensions of a standard x-ray cassette. An array system having a plurality of light sensitive pixels, the array system being disposed at least partially within the standard sized x-ray cassette housing. An electronics system, coupled in communications with the array system, the electronics system converting pixel values received from the array system into a digital image. A communications circuit, coupled to the electronics system, having a digital image output.

Abstract: An instrument and system precisely positions a selected cranial implant site for X-ray tomography. The system and method involve first positioning the patient accurately in a straight-ahead reference position using a cephalostat, with the ears positioned in the vertical plane containing all X-ray axes and at a particular reference level which may be the level of horizontal X-ray projection. The apparatus includes a pointer system which pivots on the cephalostat vertical center of rotation to measure the angle to a site of interest on the mandible or maxilla, with an adjustable pointer for measuring the height and radial distance of the site from reference positions. The pointer may be extended to directly contact the site of interest on the patient. The information thus obtained gives polar coordinates of the site.