Fig. 6

Chronological comparison of T1-weighted MR images A-D: Normal mouse at 4.4 weeks, 5.5 weeks, 7 weeks, and 37 weeks after birth, respectively. E-G: Mouse 1 at 8 weeks, 26 weeks, and 30 weeks after birth, respectively. H-J: Mouse 2 at 6 weeks, 9 weeks, and 12 weeks after birth, respectively. K-M: Mouse 3 at 14 weeks, 26 weeks, and 32 weeks after birth, respectively. In the normal mouse, the vertebrae seem vertically longer in the postgrowth MRI (D) compared to those in the maturing period (A-C). However, the shape and thickness of the structures did not change over time. The stripe in the vertebrae appears thicker over time and may indicate the development of the bony trabecular structure