FDG-PET/CT Imaging Predicts Histopathologic Treatment Responses after Neoadjuvant Therapy in Adult Primary Bone Sarcomas

Table 2

Correlation between histopathologic and metabolic response ($\ge$60% decreases in SUVmax).

	Histopathology
Metabolic response	Responder ($\ge$90% necrosis)	Nonresponder ($<$90% necrosis)
Responder ($\ge$60% decrease in SUVmax)	3	1	Positive predictive value 3/4 = 75%
Nonresponder ($<$60% decrease in SUVmax)	1	7	Negative predictive value 7/8 = 88%
	Sensitivity 3/4 = 75%	Specificity 7/8 = 88%	Accuracy 10/12 = 83%