Metabolic Tumor Volume by ¹⁸F-FDG PET/CT Can Predict the Clinical Outcome of Primary Malignant Spine/Spinal Tumors

Table 1

Clinical characteristics of patients.

Characteristics	Value
Total number of patients	27 (100%)
Sex
Male	13 (48%)
Female	14 (52%)
Age (years) mean (range)	53.9 (12–82)
Location
Cervical	7 (26%)
Thoracic	10 (37%)
Lumbar	6 (22%)
Sacral	4 (15%)
Size
≧5 cm	14 (52%)
<5 cm	13 (48%)
Histology
MPNST	5
UPS	4
Osteosarcoma	3
Chondrosarcoma	3
Leiomyosarcoma	2
Chordoma	2
GCTB	2
Others	6
Surgery
Total	16 (59%)
with wide margin	5
Chemotherapy	15 (56%)
Radiotherapy	16 (59%)

MPNST: malignant peripheral nerve sheath tumor, UPS: undifferentiated pleomorphic sarcoma, and GCTB: giant cell tumor of bone.