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Table 3 Distribution of IJV morphological types in both subject groups (per IJV analysis, N = 1222)

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

  MS patients with CCSVI Healthy controls
1. Normal 73/626 11.7% 557/596 93.5%
2. Only VDs 308/626 49.2% 39/596 6.5%
3. Hypoplasia 47/626 7.5% 0/596 0%
4. Miopragia 170/626 27.1% 0/596 0%
5. Miopragia + VDs 28/626 4.5% 0/596 0%