Efficacy of ultrasonography and Tc-99m MIBI SPECT/CT in preoperative localization of parathyroid adenomas causing primary hyperthyroidism

Table 2 Comparison of sensitivity, specificity, and accuracy in the detection of PHPT via three methods (%)

There were significant differences in sensitivity (χ² = 49.554, P < 0.001) and accuracy (χ² = 30.648, P < 0.001) among the three groups, and pairwise comparison was performed for row x column segmentation
^aCompared with US, the differences of sensitivity (χ² = 26.224, P < 0.001) and accuracy (χ² = 18.227, P < 0.001) were statistically significant
^bCompared with Tc-99m MIBI SPECT/CT, the differences were statistically significant (χ² = 33.410, P < 0.001 for sensitivity; χ² = 21.587, P < 0.001 for accuracy)
^cCompared with US, there were no significant differences (P = 0.352 and P = 0.665, respectively). There were no statistically significant differences in specificity between the three methods (χ² = 4.875, P = 0.087)

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