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. 2021 Feb 27;22(3):273–278. doi: 10.1002/acm2.13184

TABLE 1.

Distance between laser position (real position of needle tips) and tip position shown on CT.

CT resolution Distance between laser position and tip position on CT (central plug)
0.625 mm 0.8 mm
1.25 mm 1.1 mm
2.5 mm 2.2 mm
5 mm 4.4 mm
10 mm 9.6 mm