Arnesen et al developed a scoring system for quantifying venous thrombosis in the leg based on the venographic appearance. The authors are from Ulleval Hospital in Oslo, Norway.
Veins examined:
(1) anterior tibial
(2) posterior tibial
(3) peroneal
(4) popliteal
(5) femoral
(6) iliac
Parameters:
(1) percent of vein involved
(2) presence of absence of occlusion
Percent Involved
Occlusion
Points
0
NA
0
1 - 33%
absent
1
1 - 33%
present
2
34 - 66%
absent
2
34 - 66%
present
3
67 - 100%
absent
3
67 - 100%
present
4
100%
complete occlusion (no visualization)
5
total score for a lower extremity =
= SUM(points for all 6 veins)
Interpretation:
• minimum score: 0
• maximum score: 30
• The higher the score the more severe the thrombosis.
Limitations:
• Instructions on how to grade a double venous segment are not given.
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