Artículos de revistas
Transcranial sonography in Parkinson's disease
Ultrassonografia transcraniana na doença de Parkinson
Date
2012Registration in:
Einstein (São Paulo),v.10,n.2,p.242-246,2012
1679-4508
10.1590/S1679-45082012000200022
Author
Bor-Seng-Shu, Edson
Pedroso, José Luiz
Andrade, Daniel Ciampi de
Barsottini, Orlando Graziani Povoas
Andrade, Luiz Augusto Franco de
Barbosa, Egberto Reis
Teixeira, Manoel Jacobsen
Institutions
Abstract
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.