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Table 2: MRV and Doppler sonography findings in healthy controls at baseline and 6-month follow-up^a
Healthy Controls TOF TRICKS DS
RIJV LIJV RIJV LIJV RIJV LIJV
1–baseline Normal Normal Normal Normal Normal Normal
1–6 mo Normal Normal Normal Normal Normal Normal
2–baseline Normal Normal Normal Normal Normal Normal
2–6 mo Normal Abnormal Normal Abnormal Normal Normal
3–baseline Normal Normal Normal Normal Normal Normal
3–6 mo Normal Normal Normal Normal Normal Normal
4–baseline Normal Normal Normal Normal Normal Normal
4–6 mo Normal Normal Normal Normal Normal Normal
5–baseline Abnormal Normal Abnormal Normal Normal Abnormal
5–6 mo Normal Normal Abnormal Normal Abnormal Normal
6–baseline Normal Normal Normal Normal Normal Abnormal
6–6 mo Normal Normal Normal Normal Normal Abnormal
a Absent and pinpoint IJV flow was considered abnormal on TOF and TRICKS; the presence of at least 1 of the following IJV parameters was considered abnormal on a DS examination: B-mode abnormalities (flaps, septa, and web), stenoses, absence of detectable flow, and presence of reflux in both sitting and supine positions.