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Table 1 SPI by guidance technique

From: Wide local excision of breast carcinomas: the effect of ultrasound and wire guidance on the Surgical Precision Index

Technique

Number

Mean SPI

Median

Range

Palpable

44

1.91

1.67

0–8.08

Ultrasound

35

1.20

1.06

0–3.77

Wire

18

1.21

0.61

0–6.76

  1. P = 0.007.