Midbrain sonography in patients with essential tremor.

@article{Stockner2007MidbrainSI,
  title={Midbrain sonography in patients with essential tremor.},
  author={Heike Stockner and Martin Sojer and K KlausSeppi and J. Paul T. Mueller and Gregor K. Wenning and Christoph Schmidauer and Werner Poewe},
  journal={Movement disorders : official journal of the Movement Disorder Society},
  year={2007},
  volume={22 3},
  pages={
          414-7
        }
}
Several studies have reported an increased risk to develop Parkinson's disease (PD) in essential tremor (ET) populations. Hyperechogenicity of the substantia nigra (SN) is a common transcranial sonography (TCS) finding in PD and has been suggested as a PD risk-marker in nonparkinsonian subjects. This study compared SN areas of 44 ET patients with 100 controls and 100 PD patients. Sixteen percent of ET patients had SN hyperechogenicity as compared with 3% of controls and 75% of PD patients… CONTINUE READING

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Transcranial sonography on Parkinson's disease and essential tremor

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