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Double-lumen carotid plaque: a morbid configuration
Bo Yu1, Xian Mang Pan, David Saloner
1Surgical and Radiology Services of the San Francisco Department of Veterans Affairs Medical Center, University of California, San Francisco, California 94121, USA.
Journal of Vascular Surgery
|May 24, 2003
Summary
Researchers found a rare double lumen in carotid artery plaque specimens from 5 patients. This anatomical variation, often symptomatic, was difficult to detect preoperatively but identifiable on retrospective review.
Area of Science:
- Vascular anatomy
- Medical imaging
- Pathology
Background:
- Carotid artery plaque analysis is crucial for stroke risk assessment.
- Multicenter trials require precise anatomical characterization of atherosclerotic lesions.
- Understanding plaque morphology aids in predicting clinical outcomes.
Observation:
- Plaque specimens from 5 patients revealed an unusual double lumen in the internal carotid artery.
- Four of these patients presented with symptoms related to the carotid artery lesion.
- The presence of a second lumen was identified using high-resolution ex vivo magnetic resonance imaging (MRI).
Findings:
- Preoperative imaging correctly identified the plaque structure in only one patient.
- Retrospective analysis of preoperative imaging studies revealed the double lumen in three of the five patients.
- This suggests a significant underdiagnosis of this specific carotid artery anomaly in standard preoperative assessments.
Implications:
- The findings highlight a potential diagnostic challenge in identifying double lumen carotid artery anomalies.
- Improved preoperative detection could lead to more accurate risk stratification and tailored treatment strategies.
- Further research into advanced imaging techniques for carotid plaque characterization is warranted.