Advances in transcranial Doppler clinical applications


Expert Opinion on Medical Diagnostics, vol.4, no.4, pp.343-358, 2010 (Scopus) identifier identifier

  • Publication Type: Article / Review
  • Volume: 4 Issue: 4
  • Publication Date: 2010
  • Doi Number: 10.1517/17530059.2010.495749
  • Journal Name: Expert Opinion on Medical Diagnostics
  • Journal Indexes: Scopus
  • Page Numbers: pp.343-358
  • Keywords: Doppler effect, Microembolic signal, Sonothrombolysis, Stenosis, Vasomotor reactivity
  • Akdeniz University Affiliated: Yes


Importance of the field: Diagnostic neurosonology techniques including transcranial Doppler (TCD), transcranial color Doppler imaging (TCDI) and power motion-mode (PMD) TCD provide information about various aspects of cerebrovascular status such as microemboli detection, dynamic autoregulation and long-duration real-time monitoring of flow characteristics. Although most of the information provided cannot be obtained by any other imaging methodology, and is critical in clinical decision-making in the care of various neurovascular diseases, these modalities are widely underutilized. Increasing the familiarity to neurosonological techniques is of crucial importance. Areas covered in this review: After briefly reviewing TCD, TCDI and PMD techniques, classical features are summarized and recent developments in the clinical neurosonology applications with specific interest in the neurovascular disorders. What the reader will gain: Practical perspectives of ultrasound evaluation of intracranial arterial status in various neurovascular diseases including sickle cell vasculopathy and vasospasm are reviewed in detail. Pearls on the neurosonological monitoring of acute ischemic stroke and increased intracranial pressure increase is provided. Standards of cerebral microembolism detection, right to left shunts diagnosis and cerebral autoregulation assessment are discussed methodologically. Future perspectives of therapeutic neurosonology including sonothrombolysis, microbubble-ultrasound-mediated gene and drug delivery into the brain, and alteration of the brainblood barrier permeability are summarized. Take home message: Suitable with future medicine, neurosonology brings imaging to the bedside, which enables the treating physician to monitor a given intervention in real time. A non-invasive neurosonology-guided treatment of various diseases could be possible in the near future. The first and foremost step in gaining mastery in this very fruitful field is beginning to use it. © 2010 Informa UK Ltd.