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Table 2: The delineation of venous strictures in the IJV and the localization of the strictures for all volunteers
Volunteer Supine Sitting
IJV Delineation Occurrence of Stricture IJV Delineation Occurrence of Stricture
1 Bilateral Both sides superior Not depicted NA
2 Bilateral Both sides superior Not depicted NA
3 Bilateral Left side superior Not depicted NA
4 Bilateral No stricture Bilateral Narrowed, no stricture
5 Bilateral No stricture Bilateral Narrowed, no stricture
6 Bilateral No stricture Right side only Narrowed, no stricture
7 Bilateral Left side superior Bilateral Narrowed, no stricture
8 Bilateral No stricture Bilateral Narrowed, no stricture
9 Bilateral No stricture Left side only Narrowed, no stricture
10 Bilateral Right side superior Bilateral Narrowed, no stricture
11 Bilateral Both sides superior Bilateral Narrowed, no stricture
12 Bilateral No stricture Right side only Narrowed, no stricture
13 Bilateral Both sides superior Right side only Narrowed, no stricture
14 Bilateral No stricture Right side only Narrowed, no stricture
15 Bilateral Right side superior Right side only Narrowed, no stricture

Note:—NA indicates not applicable.