Marder et al described the venographic appearance of deep vein thrombosis in the arm. The same approach can be applied using other imaging techniques. The authors are from Temple University Health Sciences Center.
Veins assessed in the arm:
(1) subclavian
(2) axillary
Total Occlusion
Points
subclavian
8
axillary
4
Point assignment is based on the relative contribution to venous volume.
Total occlusion is defined as nonfillling of the vein.
The score is adjusted for partial occlusion. The points are assigned in proportion to the degree of involvement. There are several ways this could be assigned (volumetric vs two dimensional; linear vs nonlinear). The raw estimate of percent occlusion will be used in the implementation.
Interpretation:
• minimum score: 0
• maximum score for an arm: 8
• An increase in score after treatment indicates progression. A decrease indicates improved flow.
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