Keywords:
MR-Diffusion/Perfusion, Bones
Authors:
R. Yorimitsu1, T. Miyati1, M. Hara2, Y. Shibamoto2, T. Minami1, H. Kan1, A. Kitanaka1, S. Mihira1; 1Kanazawa/JP, 2Nagoya/JP
DOI:
10.1594/ecr2011/C-0957
Results
A significant positive correlation was found between mean effective interspace diameter of the simulated trabecular bone and the fraction or ADC of the fast component (Fig.
1a and b).
On the other hand,
a significant negative correlation was found between the interspace diameter of the simulated trabecular bone and fraction of the slow component (Fig.
1c),
and a strong positive correlation was found between the interspace diameter and the ADC of the slow component (Fig.
1d).
These results show that restricted diffusion of the water molecules depends on the interspace diameter of the simulated trabecular bone and fraction of each component.
Moreover,
the fraction and the ADC of the dry vertebral bone agreed with those of the simulated trabecular bone (Fig.
1).
This result means that our phantoms can reproduce actual trabecular bone structure,
which induces the restricted diffusion.