Abstract: Markers having a shape defining an edge portion of a radiation image area are recorded together with radiation images in stimulable phosphor sheets in a position fixed with respect to the radiation images. The stimulable phosphor sheets are scanned with stimulating rays, and the edge portion defined by the markers is photoelectrically detected. Read-out of the image signals of the radiation images is conducted by using the detected signal of the edge portion as the read-out synchronizing signal, thereby to obtain the image signals corrected for deviations in position among the radiation images.

Abstract: A process of forming indicia on autoradiograms is disclosed wherein a substrate containing a distribution of radioactive material, such as radioactively tagged proteins, is marked with a hexagonal Wurtzite form of zinc sulfide doped with trace metals phosphor. The thusly marked substrate is exposed to actinic radiation to charge the phosphor. The substrate is then superposed on an X-ray film to form a latent photographic image in the film which is developed by conventional means to form a photographic image of the phosphorescent indicia and the distribution of radioactive material in the substrate.

Abstract: To avoid problems in communication between the examining physician, the X-ray technician and the diagnosing radiologist, the present invention utilizes adhesive tape having radiopaque material incorporated into it. This tape is for use by the examining physician, to mark the exact location of concern. It will be visualized by the X-ray technician who shoots the film, and will then appear on the processed film to focus the attention of the radiologist to the area deserving closest attention.

Abstract: A computed tomography stereostactic frame is disclosed designed for use with a CT Scanner. The frame comprises a platform or support including an area thereon for supporting a patient's head and for maintaining the patient's head in position. An inverted substantially U-shaped frame is selectively movably mounted on the support. A probe holder is selectively movably mounted on either of the leg portions or the base portion of the frame and is designed to permit a twist drill bit or probe to be extended therethrough.

Abstract: A device for positioning a holder for an aiming sleeve for implanted bone nail fasteners with respect to a Roentgen ray source includes a support (25) for supporting the holder (7). A base plate (12) and a pivotable bracket plate (3) receives the support means and is mountable on the housing of the Roentgen ray source for spacedly positioning the holder from the source. The support is formed as a fork-like element (26, 28, 29) retained in sleeves (38, 39) on the bracket plate by means of locking cams (8).