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. 2021 Jul 18;22(9):183–188. doi: 10.1002/acm2.13361

TABLE 1.

An example of the 2 × 2 contingency table used in this study where a, b, c, and d are the frequency of each category

γ metric

Threshold

3%, 3 mm

90%

ArcCheck
Fail Pass
LinacView Pass a b
Fail c d