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[Indication for transcranial Doppler studies in transient ischemic attack]

A Lagi1, S Cencetti, S Bacalli

  • 1Unità Operativa di Medicina Interna I, Ospedale S. Maria Nuova di Firenze.

Annali Italiani Di Medicina Interna : Organo Ufficiale Della Societa Italiana Di Medicina Interna
|October 1, 1995
PubMed
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Transcranial Doppler sonography (TCD) is a valuable, noninvasive tool for assessing transient ischemic attacks (TIA). It provides crucial information on intracranial circulation, aiding in the diagnosis of TIA and related cerebrovascular conditions.

Area of Science:

  • Neurology
  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Transient Ischemic Attacks (TIA) require comprehensive diagnostic evaluation.
  • Standard TIA diagnostics include brain imaging and extracranial vascular studies.
  • Transcranial Doppler sonography (TCD) offers noninvasive intracranial circulation assessment but is underutilized.

Purpose of the Study:

  • To evaluate the diagnostic utility of Transcranial Doppler sonography (TCD) in patients presenting with TIA.
  • To determine the role of TCD in identifying specific cerebrovascular pathologies associated with TIA.

Main Methods:

  • Eighty-one consecutive TIA patients underwent cranial CT, extracranial ultrasound, and TCD.
  • TCD was used to investigate intracranial cerebral circulation.

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  • Findings were correlated with other diagnostic procedures.

    • Main Results:

    • TCD findings were highly significant in 18% of TIA patients, identifying intracranial stenoses and subclavian steal.
    • Abnormal TCD findings provided insights into intracranial collateralization and hemodynamic regulation.
    • 39% of TCD results were not significant, but still offered hemodynamic information.

    Conclusions:

    • Transcranial Doppler sonography (TCD) is a useful diagnostic tool in the assessment of TIA.
    • TCD provides valuable information on intracranial hemodynamics and collateralization, complementing other diagnostic methods.
    • The noninvasive nature of TCD enhances its utility in TIA evaluation.