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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Ann Surg. 2016 Dec;264(6):1098–1102. doi: 10.1097/SLA.0000000000001549

Table 2.

A: Performance characteristics of axillary ultrasound (AUS) for detection of
micrometastatic or macrometastatic lymph node disease
Positive pathology Negative pathology
Abnormal AUS 148 117
Normal AUS 63 319
B: Performance characteristics of axillary ultrasound (AUS) for detection of
macrometastatic (> 2 mm) lymph node disease
Positive pathology Negative pathology
Abnormal AUS 129 136
Normal AUS 41 341

Sensitivity 70%, Specificity 73%, Negative Predictive Value 84%, Positive Predictive Value 56%

Sensitivity 76%, Specificity 71%, Negative Predictive Value 89%, Positive Predictive Value 49%