Head and neck radiology Assessment of the effect of percutaneous ethanol injection in autonomously functioning thyroid nodules by colour-coded duplex sonography

1 Diagnostic Imaging Department, Regina Apostolorum Hospital, Via San Francesco 50, 1-00041 Albano (Rome), Italy 2 Department of Endocrinology and Metabolism, Regina Apostolorum Hospital, Via San Francesco 50, 1-00041 Albano (Rome), Italy 3 Department of Experimental Medicine, La Sapienza University, Viale Regina Elena 324, 1-00100 Rome, Italy Received 21 June 1994; Revision received 13 September 1994; Accepted 2 November 1994