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Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery
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Point of Care Transcranial Color-Coded Duplex Ultrasound of the Middle Cerebral Artery

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[Cervical arteries dissection: diagnostic Color Doppler US criteria at the acute phase]

M P Gobin-Metteil1, C Oppenheim, V Domigo

  • 1Département d'Imagerie Morphologique et Fonctionnelle, Centre Hospitalier Sainte-Anne, 1 rue Cabanis 74674 Paris cedex 14. gobin-metteil@ch-sainte-anne.fr

Journal De Radiologie
|May 13, 2006
PubMed

Insights

Duplex color-coded ultrasonography effectively aids in diagnosing acute cervical artery dissection by identifying intramural hematoma signs. Direct visualization via B-mode ultrasound significantly improves diagnostic accuracy for these critical arterial injuries.

Area of Science:

  • Vascular Imaging
  • Neurology
  • Diagnostic Ultrasound

Background:

  • Acute cervical artery dissection is a significant cause of stroke in young adults.
  • Accurate and timely diagnosis is crucial for appropriate management and prevention of complications.

Purpose of the Study:

  • To evaluate the diagnostic utility of duplex color-coded ultrasonography in the initial assessment of acute cervical artery dissection.
  • To determine the sensitivity of specific sonographic criteria for detecting intramural hematoma.

Main Methods:

  • Retrospective analysis of 31 patients with clinically suspected cervical artery dissection confirmed by MRI.
  • Evaluation of direct signs of intramural hematoma (e.g., increased diameter, narrowed lumen, hematoma echogenicity, intimal flap) on B-mode ultrasound.
  • Assessment of associated criteria including hematoma location and multiple dissections.

Main Results:

  • Duplex ultrasonography visualized direct signs of dissection in 83% of accessible arterial segments (internal carotid and vertebral arteries V0-V3).
  • Diagnostic accuracy was lower (30%) for arterial segments not visualized by B-mode ultrasound.
  • Intramural hematoma signs demonstrated good sensitivity on visualized segments.

Conclusions:

  • B-mode ultrasonography effectively identifies direct signs of intramural hematoma in visualized cervical artery segments.
  • Multiple dissections in cases of arterial occlusion are a strong indicator for diagnosis.
  • Further studies are needed to assess specificity compared to MRI.
Abstract

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