Duplex sonography in embolotherapy of external carotid artery traumatic aneurysms.

Until recently, arteriography has been the method of choice for diagnosing traumatic aneurysms and for follow-up after transcatheter coil embolization [1-3]. Duplex sonography can now playa complementary role in the diagnosis and followup of these lesions. Serial duplex sonographic examinations provide a noninvasive method of monitoring the cessation of flow within the aneurysms and their resolution. This report describes how duplex scanning was used in two patients to make the diagnosis of traumatic aneurysms and to observe their progress after embolization.