Abstract #1227
A BOLD effect on different calf muscle groups in elderly females
Chenfei Ye 1 , James F. Griffith 2 , Heather T. Ma 1 , David K. Yeung 2 , Alvin F. Li 2 , and Xu Xing 1
1
Department of Electronic and Information
Engineering, Harbin Institute of Technology Shenzhen
Graduate School, Shenzhen, Guangdong, China,
2
Department
of Imaging and Interventional Radiology, Prince of Wales
Hospital, The Chinese University of Hong Kong, Shatin,
Hong Kong
This study examined the BOLD effect on calf muscles in
elderly subjects to investigate the oxygenation
characteristics in different calf muscle groups for the
elderly females. Temporary vascular occlusion was
induced with air-cuff compression of the thigh and
BOLD-MRI data curve was fitted to derive quantitative
parameters. The BOLD signal in soleus muscle showed the
lowest minimum ischemic value during ischemia and the
steepest slope during hyperemia. As soleus muscle is
mainly composed by slow-twitch oxidative muscle fibers,
current results may be due to a higher vascular bed
density and better endothelial function in such muscle.
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