Diffusion Kurtosis Imaging as a Prognostic Marker in Osteosarcoma Patients with Preoperative Chemotherapy

Table 1

Clinical characteristics of the study patients.

Variable	(%)
Age, mean (range)	17.5 (7-34)
Sex
Male	21 (70.0)
Female	9 (30.0)
Tumor location
Distal femur	21 (70.0)
Others	9 (30.0)
AJCC stage
IIA	4 (13.3)
IIB	22 (73.4)
III	4 (13.3)
Surgical approach
Limb salvage	28 (93.3)
Amputation	2 (6.7)
Pathological subtype
Osteoblastic	27 (90.0)
Others	3 (7.0)
Huvos grade
I and II	17 (56.7)
III and IV	13 (43.3)
Progression rate
Free	15 (50.0)
Positive	15 (50.0)

AJCC: American Joint Committee on Cancer.