P(論文), To evaluate the skeletal efficacy of raloxifene on the osteoporosis in ovariectomized mice model, the sixth lumbar vertebrae was scanned by X-ray micro-CT, and these resulting 8-bit gray-scale images were analyzed by using commercial three-dimen. sional (3-D) reconstruction software (VoxBlast^ Mac, VayTek, Inc., USA). In this paper, it is described how to use VoxBlast software practically for processing sequential datasets from CT scanners. Furthermore, we demonstrate in 3-D visualization that new trabecular bones buik compact bridge constructions in the lumbar vertebrae after the treatment with raloxi fene.