vessel tortuosity
Abnormal twisting, coiling, or serpentine course of blood vessels visible on imaging studies.
Full Definition
Vessel tortuosity describes the deviation of blood vessels from their normal straight or gently curved path, appearing as excessive twisting, coiling, or serpentine configurations on vascular imaging. This finding can be congenital, acquired due to aging or hypertension, or secondary to underlying vascular disease. Tortuosity can complicate catheter-based interventions and may affect flow dynamics. In imaging reports, tortuosity is typically graded as mild, moderate, or severe, and its clinical significance depends on the vessel involved and the degree of associated hemodynamic compromise. Editors must ensure consistent terminology when describing tortuous vessels and avoid confusion with terms like 'stenosis' or 'occlusion'.
Usage
Usage note: Use 'tortuosity' as the noun form; 'tortuous' as the adjective. Avoid 'torturous' which implies causing pain.
In Context
- "Significant vessel tortuosity of the right vertebral artery complicated catheter navigation." — Interventional neuroradiology report
- "Mild tortuosity of the superficial femoral artery was noted without hemodynamic significance." — Peripheral vascular study