SciELO - Scientific Electronic Library Online

 
vol.10 issue2Imaging findings and cerebral perfusion in arterial ischemic stroke due to transient cerebral arteriopathy in childrenManganese-enhanced magnetic resonance imaging in the acute phase of the pilocarpine-induced model of epilepsy author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Einstein (São Paulo)

Print version ISSN 1679-4508

Abstract

BOR-SENG-SHU, Edson et al. Transcranial sonography in Parkinson's disease. Einstein (São Paulo) [online]. 2012, vol.10, n.2, pp. 242-246. ISSN 1679-4508.  http://dx.doi.org/10.1590/S1679-45082012000200022.

Transcranial sonography has become a useful tool in the differential diagnosis of parkinsonian syndromes. This is a non-invasive, low cost procedure. The main finding on transcranial sonography in patients with idiopathic Parkinson's disease is an increased echogenicity of the mesencephalic substantia nigra region. This hyperechogenicity is present in more than 90% of cases, and reflects a dysfunction in the dopaminergic nigrostriatal pathway. This study discussed how the hyperechogenicity of the substantia nigra may facilitate the differential diagnosis of parkinsonian syndromes.

Keywords : Parkinson disease [ultrasonography]; Ultrasonography, doppler, transcranial; Diagnosis, differential.

        · abstract in Portuguese     · text in English | Portuguese     · pdf in English | Portuguese