Flow morphology of IJVs in patients with MS and HCs 2D-TOF using venography and 3D-TRICKSa
| Morphology Score | TOF | TRICKS | ||||
|---|---|---|---|---|---|---|
| HC (n = 63) | MS (n = 150) | NPRMS (n = 104) | PRMS (n = 46) | NPRMS (n = 96) | PRMS (n = 44) | |
| Absent (No.) (%) | 5 (7.9) | 23 (15.3) | 14 (13.5) | 9 (19.6) | 7 (6.7) | 2 (4.3) |
| Pinpoint (No.) (%) | 12 (19) | 23 (15.3) | 12 (11.5) | 11 (23.9) | 18 (17.3) | 17 (37) |
| Flattened (No.) (%) | 18 (28.6) | 50 (33.3) | 33 (31.7) | 17 (37) | 43 (41.3) | 30 (65.2) |
| Crescentic (No.) (%) | 2 (3.2) | 2 (1.3) | 2 (1.9) | 0 (0) | 3 (2.9) | 1 (2.2) |
| Ellipsoidal (No.) (%) | 26 (41.3) | 52 (34.7) | 43 (41.3) | 9 (19.6) | 93 (89.4) | 41 (89.1) |
| P value | .259 | .006 | .01 | |||
Note:—NPR indicates nonprogressive; PR, progressive.
↵a The differences on the ordinal morphologic flow scale between the study groups were evaluated using the Mann-Whitney U test. Only absent and pinpoint flows in the IJVs were considered abnormal.