SERIAL DYNAMIC MAGNETIC-RESONANCE-IMAGING OF ORBITAL CAVERNOUS HEMANGIOMA

PURPOSE: To assess serial dynamic magnetic resonance imaging after rap id intravenous injection of contrast material as a tool for diagnosing orbital cavernous hemangioma. METHODS: Two patients with orbital cave rnous hemangioma were studied. Gadolinium-DTPA, 0.1 mmol/kg, was injec ted intravenously in 10 seconds. RESULTS: On early imaging after the i njection, one small point of enhancement was initially noted, and then the tumor was homogeneously enhanced, The initial enhancement point r epresented the connecting point of feeding vessels to the lesion, CONC LUSIONS: Dynamic magnetic resonance imaging is useful for diagnosing c avernous hemangioma and for estimating the connecting point of feeding vessels.