Table 1 Time and counted needle passes using standard ultrasound versus augmented reality in situ ultrasound in the leg phantom and vessel phantom in untrained and trained operators
Standard US leg phantom | Standard US vessel phantom | AR in situ US leg phantom | AR in situ US vessel phantom | |||||
|---|---|---|---|---|---|---|---|---|
Untrained | Trained | Untrained | Trained | Untrained | Trained | Untrained | Trained | |
Time (s), median [range] | 33 [7–220] | 18.5 [8–94] | 10.5 [3–60] | 7 [3–15] | 32 [7–101] | 16.5 [5–100] | 9 [3–34] | 9 [3–25] |
Counted needle passes, median [range] | 2 [1–8] | 1 [1–2] | 1 [1–6] | 1 [1–1] | 1 [1–4] | 1 [1–4] | 1 [1–2] | 1 [1–1] |