Table 1.

Characteristics of patients with underlying malignant diseases (M male, F female, BS bone scan using ^99mTc-HDP, NC no change, TP true positive, TN true negative, FN false negative, FP false positive, meta (+) metastasis present, meta (–) metastasis absent, F/U follow-up, TP true positive, RT radiotherapy)

No.	Age	Sex	Underling disease	Issues on bone metastasis	Bone PET finding	No. of lesion group	Final result	Accuracy of bone PET
1	61	M	Prostate cancer	Equivocal on BS	Meta (+)	1	Meta (+) on MR, start RT	TP
2	47	F	Thyroid cancer	Equivocal on BS	Meta (−)	1	Meta (−) on F/U (14 months)	TN
3	45	F	Breast cancer	Equivocal on BS	Meta (−)	1	Meta (−) on F/U (17 months) and BS NC	TN
4	63	F	Breast cancer	Equivocal on BS	Meta (−)	1	Meta (−) on F/U (17 months) and BS (−)	TN
5	63	M	Thyroid cancer	Equivocal on BS	Meta (−)	1	Meta (−) on F/U (12 months) and BS NC	TN
6	49	F	Breast cancer	Equivocal on BS, FDG-PET, and MRI	Meta (+)	1	Meta (+) on clinical context	TP
7	53	F	Breast cancer	Equivocal on CT and MRI	Meta (−)	1	Meta (+) on clinical context	FN (small lesions)
8	47	F	Breast cancer	Known bone meta, aggravation on MRI, equivocal on BS, humerus	Meta (+), meta (−) humerus	2	Meta (+) on chemo change, meta (−) humerus	TP, TN
9	57	M	Multiple myeloma	Known bone meta on MRI, shoulder and elbow pain	Meta (+), meta (−) shoulder and elbow	2	Meta (+) on FDG−PET, meta (−) shoulder, elbow on F/U (12 months)	TP, TN
10	55	M	Stomach cancer	Known bone meta on BS, intractable shoulder pain	Meta (+)	1	Meta (+) on clinical context	TP (more extensive bone meta than BS
11	62	M	Thyroid cancer	Known bone meta s/p op and RT	Meta (+)	1	Meta (−) on I-131 scan	FP (post-op change)
12	84	M	Prostate cancer	Known bone meta on BS s/p hormonal therapy	Meta (+)	1	Meta (+) on clinical context	TP
13	59	M	Colon cancer	Equivocal on CT	Meta (−)	1	Meta (−) on F/U (6 months) and FDG-PET	TN