vessel caliber
The internal diameter or width of a blood vessel, critical for assessing vascular pathology and flow dynamics.
Full Definition
Vessel caliber refers to the internal diameter or cross-sectional measurement of a blood vessel, which is a fundamental parameter in vascular imaging assessment. Changes in vessel caliber can indicate various pathological conditions including stenosis, aneurysmal dilatation, vasospasm, or developmental anomalies. Accurate measurement of vessel caliber is essential for treatment planning, particularly in interventional procedures where device sizing depends on precise vessel dimensions. Caliber measurements are typically expressed in millimeters and can vary significantly between different vascular territories and individual patients.
Usage
Usage note: Preferred over 'diameter' in formal vascular imaging reports.
In Context
- "The vessel caliber measured 3.2 mm at the point of maximum stenosis." — Interventional procedure report
- "Normal vessel caliber was restored following balloon angioplasty." — Post-procedure imaging report