Table 4 Comparison of magnetic resonance venography (as "gold standard-benchmark") for the detection of abnormal findings in the internal jugular veins and in azygos vein/vertebral veins using other noninvasive and invasive imaging techniques
MRV | # of positive cases | Noninvasive and invasive imaging modalities | # of positive cases | Total # of cases | Sensitivity | Specificity | PPV | NPV | OR |
|---|---|---|---|---|---|---|---|---|---|
IJV right | 7 | CV IJV right | 11 | 20 | 35 | 53.8 | 45.5 | 77.8 | 2.92 (.41-20.89) |
IVUS IJV right | 10 | 71.4 | 34.8 | 25 | 80 | 4 (.55-29.09) | |||
CV + IVUS IJV right | 13 | 71.4 | 38.5 | 38.5 | 71.4 | 1.56 (.22-11.37) | |||
IJV left | 7 | CV IJV left | 14 | 19 | 57.1 | 23.1 | 28.6 | 50 | .40 (.06-2.89) |
IVUS IJV left | 15 | 18 | 100 | 27.3 | 46.7 | 100 | 1.88 (1.17-3.01) | ||
CV + IVUS IJV left | 18 | 18 | NA* | NA* | NA* | NA* | NA* | ||
IJVs total | 8 | CV IJV total | 17 | 20 | 75 | 8.3 | 35.3 | 33.3 | .27 (.02-3.67) |
IVUS IJV total | 18 | 100 | 16.7 | 44.4 | 100 | 1.8 (1.19-2.72) | |||
CV + IVUS IJV total | 20 | 100 | 0 | 0.4 | --- | --- | |||
VVs total | 3 | CV azygos total | 10 | 20 | 0 | 41.2 | 0 | 70 | .7 (.47-1.05) |
IVUS azygos total | 17 | 100 | 17.6 | 17.6 | 100 | 1.21 (.97-1.51) | |||
CV + IVUS azygos total | 18 | 100 | 11.8 | 16.7 | 100 | 1.20 (.98-1.48) |