Clinical Study
Comparison of Diagnostic Performance of Three-Dimensional Positron Emission Mammography versus Whole Body Positron Emission Tomography in Breast Cancer
Table 1
Calculation of diagnostic concordance and performance of WBPET and 3D-PEM.
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Concordance rate of positive diagnosis of 3D-PEM compared with WBPET = A/(A + C) × 100%; concordance rate of negative diagnosis of 3D-PEM compared with WBPET = D/(B + D) × 100%; overall diagnostic concordance = (A + D)/(A + B + C + D) × 100%; sensitivity = a/(a + c) × 100%; specificity = d/(b + d) × 100%; accuracy = (a + d)/(a + b + c + d) × 100%. |