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Table 1 Comparison of BSGI, mammography, and ultrasound sensitivity and specificity for BI-RADS 4 lesions

From: Comparison of 99mTc-MIBI scintigraphy, ultrasound, and mammography for the diagnosis of BI-RADS 4 category lesions

ApproachSensitivitySpecificityPPVNPV
BSGI94.9 (111/117)78.3 (47/60)89.5 (111/124)88.7 (47/53)
Mammography91.5 (107/117)48.3 (29/60)*a77.5 (107/138)*b74.4 (29/39)
Ultrasound93.2 (109/117)53.3 (32/60) *a79.6 (109/137) *b80.0 (32/40)
  1. PPV positive predictive value, NPV negative predictive value
  2. *aBSGI to Mammography, P < 0.05, to Ultrasound, P < 0.05
  3. *bBSGI to Mammography, P < 0.05, to Ultrasound, P < 0.05