title: A head-holder for radionuclide dacryocystography.
abstract: Proper patient immobilization, essential for good-quality radionuclide studies of the lacrimal system, is achieved with a head-holder which is adjustable in both vertical and horizontal directions.
mesh_terms: D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis*; D011877:Radionuclide Imaging; D013679:Technology, Radiologic / Q000295:instrumentation*