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Table 2 Glioma’s depth (from dura), as measured with the US imaging system (Sonowand, or BK Medical) of the OR and the NUD

From: New US device versus imaging US to assess tumor-in-brain

  A = US imaging B = NUD C = |A − B|
Mean (mm) 18.35 18.8 0.45
SD (mm) 1.8 0.6 1.2
Depth rage (mm) 16.55; 20.15 18.2; 19.4 16.5; 0.75