P043. Hyperechogenicity of the periaqueductal gray in chronic migraine and episodic migraine as a potential marker of progressive dysfunction: preliminary results with transcranial sonography

J Headache Pain. 2015 Dec;16(Suppl 1):A61. doi: 10.1186/1129-2377-16-S1-A61.

Authors

Elena Guaschino^{1

2}, Natascia Ghiotto^{1

2}, Cristina Tassorelli^{2

3}, Vito Bitetto², Giuseppe Nappi², Arrigo Moglia^{1

3}, Daniele Bosone¹, Grazia Sances⁴

Affiliations

¹ Clinical Neurophysiology Unit, University of Pavia, Pavia, Italy.
² Headache Science Centre, National Neurological Institute C. Mondino, Pavia, Italy.
³ Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy.
⁴ Headache Science Centre, National Neurological Institute C. Mondino, Pavia, Italy. [email protected].

No abstract available