Comparison of Diagnostic Performance of Three-Dimensional Positron Emission Mammography versus Whole Body Positron Emission Tomography in Breast Cancer

Table 5

Comparison of diagnostic performance of 3D-PEM and WBPET.

Total cases
	WBPET n = 253		3D-PEM n = 253		P value
	+	−	+	−
Histopathology +, n = 209	200	9	194	15
Histopathology −, n = 44	19	25	20	24
Sensitivity (%)	95.7		92.8		0.828
Specificity (%)	56.8		54.5		0.909
Accuracy (%)	88.9		86.2		0.808
	WBPET n = 44		3D-PEM n = 44		P value
	+	−	+	−
Lesion < 1 cm
Histopathology +, n = 26	16	10	18	8
Histopathology −, n = 18	5	13	6	12
Sensitivity (%)	61.5		69.2		0.79
Specificity (%)	72.2		66.7		0.878
Accuracy (%)	65.9		68.1		0.92
	WBPET n = 234		3D-PEM n = 234		P value
	+	−	+	−
Lesion ≥ 1 cm
Histopathology +, n = 203	187	16	183	20
Histopathology −, n = 31	15	16	15	16
Sensitivity (%)	92.1		90.1		0.88
Specificity (%)	51.6		51.6		1.0
Accuracy (%)	86.8		85.0		0.65

Values were compared by chi-square test.