Digital Subtraction Macrodacryocystography

摘要: A series of patients with obstructive epiphora was evaluated by a new method dacryocystography. The technique involved intubation and injection radiopaque contrast material into each lacrimal system under the control direct sequential digitally subtracted (realtime) imaging. Simultaneous rapid sequence digital subtraction macrodacryocystography yields instantaneous high resolution magnified bone-free radiographs drainage system.