Figure 2From: Feasibility of preoperative 125I seed-guided tumoural tracer injection using freehand SPECT for sentinel lymph node mapping in non-palpable breast cancerBland-Altman analysis for the distances in depth measured with US probe and with the freehand SPECT. The analysis indicates, with the black broken line, the average of the measurements. The upper and lower red broken lines represent the Bland-Altman limits within the 95% confidence interval.Back to article page