Table 2. Radiological evaluation method for chemotherapeutic effect.

	Definition of the responders	Point
X-ray	Sclerotic change and/or cortical remodeling	1
Angiogram	Disappearance of pathologic vascularization	1
MRI	ΔEM ≥30%	2
201Tl	ΔUR ≥30%	2
99mTc-MIBI	ΔUR ≥30%	2
Combined radiological score	Total point ≥60%

ΔEM: the percentage reduction in extraskeletal masses (EM).

ΔUR: the percentage reduction in uptake ratio (UR).

Combined radiological score (CRS) = Total of the radiological score/Full marks (%).