Materials and Methods

  1. We tried transmission of taking image by using direct digital X-ray system in the computer network, assuming it is easy to identify from a remote place (Fig. 2).

  2. First, regular X-ray photograph of skull was taken and assumed as ante-mortem dental record of victim. Secondly, the above X-ray photograph was digitized and indicated on the monitor of the Compuray. Subsequently, we kept taking Compuray images of the aforesaid skull as post-mortem data until their projection angles became identical to the ante-mortem X-ray image displayed on the monitor (Fig. 3).

  3. By expanding the images and comparing the details obtained by above method, we tried comparing by the superimposition on the monitor (Fig. 4).

  4. We carried out the personal identification of the 2 murder cases' victims by using the portable Compuray.