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. 2007 Jan 31;7:1. doi: 10.1186/1471-2342-7-1

Table 3.

Quantitative characterization of 3D data with respect to recognition rate

Items compared ATOSII QTSculptor Statistics
Total surface area count recognized/not recognized on scanner data 114/106 212/8 p < 0.001
χ2
Recognition rate
Cat. A > 0.7 mm
66/19 85/0 p < 0.001
χ2
Recognition rate
Cat. B ≤ 0.7 mm
48/87 127/8 p < 0.001
χ2
Recognition rate (bootstrapped estimate) 73 ± 5% @ ≥ 1.2 mm 98 ± 1% @ ≥ 0.3 mm
Surface categories Recognized/not recognized: Recognized/not recognized:
Bone native surface 43/36 77/2 p < 0.001
χ2
Black dots on bone surface 4/1 5/0
Red dots on bone surface 1/1 2/0
Sandstone surface 66/61 121/6
Quartz inclusion (highly reflective) 0/7 7/0