Digitale Szintigraphie des Ohres

Description of a new nuclear medical method permitting the application of radioisotopes for otologic diagnosis. It is made possible by use of an specially constructed pinhole collimator for the Anger-camera. The evaluation is done by aid of a special Fortran IV computer program. For the ear scintigraphy the bone-seeking radiopharmacon 99mTc-MDP is applied, and, thus, patients suffering from operatively confirmed otosclerosis exhibit hot spots of the radioisotope in the regions of the oval and the round window or of the cochlea respectively. This method, for the first time, enables in vivo studies of the metabolic activity of otosclerotic foci in all the bony labyrinthine wall.