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Table 5 Distribution of IJV morphological types related to CCSVI score (per patient analysis, N = 313)

From: Cross-sectional area variations of internal jugular veins during supine head rotation in multiple sclerosis patients with chronic cerebrospinal venous insufficiency: a prospective diagnostic controlled study with duplex ultrasound investigation

  CCSVI score
2 3 4 5
(N, %) (N, %) (N, %) (N, %)
1. Only VDs 58/94 28/94 8/94 0/94
61.7% 29.8% 8.5% 0%
2. Hypoplasia + VDs 11/33 17/33 5/33 0/33
33.3% 51.5% 15.2% 0%
3. Miopragia + VDs 34/172 103/172 24/172 11/172
19.8% 59.9% 14.0% 6.4%
4. Hypoplasia + Miopragia + VDs 2/14 4/14 8/14 0/14
14.3% 28.6% 57.1% 0%