Fig. 3From: Comparison of semi-quantitative and quantitative dynamic contrast-enhanced MRI evaluations of vertebral marrow perfusion in a rat osteoporosis modelTEM sections of L4 vertebral bodies show (a) loose gap between VECs (arrow) with (b) normal mitochondria (arrow) in the control group, and enhanced vasoconstriction appeared as (c) tight gap between VECs (arrow) with (d) swollen mitochondria (arrow) at week 3 after OVX (original magnification Ă—20,000)Back to article page