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CVIR Endovascular
Fig. 2 | CVIR Endovascular

Fig. 2

From: Infrainguinal inflow assessment and endovenous stent placement in iliofemoral post-thrombotic obstructions

Fig. 2

Examples of grading of axial transformation of the deep femoral vein on conventional venography. a Grade 0, normal anatomy with no post-thrombotic changes. b Grade 1, a popliteal-deep femoral collateral connection (black arrow) and normal caliber deep femoral vein. c Grade 3, the deep femoral vein (black arrows) is larger than the obstructed femoral vein. d Grade 4, large caliber deep femoral vein (black arrows) and occluded femoral vein. White * indicates the femoral vein

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