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September 1, 1982Radiology

High-resolution dynamic ultrasound imaging of the carotid bifurcation: a prospective evaluation.

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Why the study?

Does high-resolution dynamic ultrasound imaging accurately detect atheromatous plaque compared to cerebral angiography in patients undergoing cerebral angiography?

Population

100 patients undergoing cerebral angiography

Comparison

High-resolution dynamic ultrasound imaging of… vs Cerebral angiography

Design

Cohort, Independent interpretation of examinations

Authors

EJE M JamesMayo ClinicFEFranklin EarnestMayo ClinicGFGlenn S. ForbesRobert Gordon University

Discussion

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Implication

Supports ultrasound as noninvasive adjunct for carotid plaque detection; leaves open its reliability for specific features like stenosis or ulceration.

Key Points

  • To evaluate the effectiveness of high-resolution dynamic ultrasound imaging of the carotid bifurcation prior to cerebral angiography.
  • One hundred patients underwent ultrasound imaging immediately before angiography.
  • Positive interpretations indicated moderate to extensive atheromatous plaque, while negative interpretations indicated normal vessels.
  • Correlation between ultrasound and angiography was assessed.
  • Approximately 85% correlation between ultrasound and angiography was observed.
  • 15% disagreement mainly consisted of false positives from ultrasound examinations.
  • Ultrasound reliably detected atheromatous disease but had limitations in identifying stenosis, ulceration, intraluminal thrombus, and vessel occlusion.

Structured PICO

Does high-resolution dynamic ultrasound imaging accurately detect atheromatous plaque compared to cerebral angiography in patients undergoing cerebral angiography?

P
Population
100 patients undergoing cerebral angiography
I
Intervention
High-resolution dynamic ultrasound imaging of the carotid bifurcation
C
Comparator
Cerebral angiography
O
Outcome
Correlation between ultrasound and angiography for detecting atheromatous plaquesurrogate

High-resolution dynamic ultrasound accurately detects carotid atheromatous disease but is unreliable for identifying specific features like stenosis, ulceration, or thrombus.

Limitations

  • 10% of ultrasound examinations were technically unsatisfactory
  • Stenosis, ulceration, intraluminal thrombus, and vessel occlusion were not reliably identified

Cite This Study

James et al. (1982) studied this question.

synapsesocial.com/papers/6a0feadd2badbc352afef4cdhttps://doi.org/10.1148/radiology.144.4.7111737
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1High resolution real time ultrasound of the carotid bifurcation1979 · 42 citations
  2. 2Comparison of Duplex Ultrasound with Angiography in Assessment of Carotid Bifurcation Disease1992 · 15 citations
  3. 3B-Mode, Real-time Carotid Ultrasonic Imaging1983 · 25 citations
  4. 4Carotid atherosclerosis: high-resolution real-time sonography correlated with angiography1983 · 37 citations
  5. 5Experiences of Duplex Ultrasonography of Carotid Arteries Performed by Clinicians—correlation to Angiography1987 · 7 citations