venogram
An imaging study that visualizes veins using contrast material to assess venous anatomy and pathology.
Full Definition
A venogram is a specialized imaging examination that visualizes the venous system through the introduction of contrast material into veins. This procedure can be performed using various techniques including direct venous puncture, catheter-based injection, or peripheral venous access. Venograms are essential for diagnosing venous thrombosis, evaluating venous anatomy prior to interventional procedures, and assessing venous patency. The study provides detailed information about venous flow patterns, collateral circulation, and structural abnormalities that may not be adequately visualized with non-invasive imaging methods.
Usage
Usage note: Specifically refers to venous imaging; distinguish from arteriogram in reports.
In Context
- "The venogram confirmed extensive deep vein thrombosis involving the femoral and iliac veins." — Vascular imaging report
- "Pulmonary venogram showed normal venous drainage from all four pulmonary veins." — Cardiac catheterization report