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Related Experiment Videos

Transcranial color-coded duplex sonography in cerebral aneurysms

R W Baumgartner1, H P Mattle, K Kothbauer

  • 1Department of Neurology, University of Berne, Inselspital, Switzerland.

Stroke
|December 1, 1994
PubMed
Summary
This summary is machine-generated.

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Transcranial color-coded duplex sonography can diagnose non-thrombosed cerebral aneurysms by visualizing flow. However, it misses small or thrombosed aneurysms, making it unsuitable as a primary screening tool.

Area of Science:

  • Neuroimaging
  • Vascular Neurology
  • Diagnostic Ultrasound

Background:

  • Aneurysmal subarachnoid hemorrhage carries high mortality and morbidity.
  • Early diagnosis and treatment of cerebral aneurysms are crucial.
  • Transcranial color-coded duplex sonography (TCDS) is an imaging modality.

Purpose of the Study:

  • To define ultrasonographic criteria for diagnosing cerebral aneurysms.
  • To assess the sensitivity of TCDS in detecting radiologically proven aneurysms.
  • To evaluate TCDS as a diagnostic tool for intracranial aneurysms.

Main Methods:

  • Prospective examination of 29 patients with 30 radiologically confirmed cerebral aneurysms.
  • Utilized transcranial color-coded duplex sonography (TCDS).

Related Experiment Videos

  • Sonographer blinded to angiography results but aware of CT/MRI findings.

    • Main Results:

    • TCDS identified 85% (23/27) of non-thrombosed aneurysms (6-25 mm diameter).
    • Characteristic findings included a "separation zone" with absent color flow.
    • Small (mean diameter 5 mm) and thrombosed aneurysms were missed (7/7).

    Conclusions:

    • TCDS can diagnose non-thrombosed cerebral aneurysms by detecting flow phenomena.
    • TCDS is not the preferred method for initial aneurysm screening due to missed diagnoses.
    • Incidental detection of aneurysms during TCDS of intracranial arteries is recommended.