Blood perfusion assessed by dynamic MRI for Maximum Enhancement and Time-Signal Intensity

<p><b>Copyright information:</b></p><p>Taken from "Elevated adipogenesis of marrow mesenchymal stem cells during early steroid-associated osteonecrosis development"</p><p>http://www.josr-online.com/content/2/1/15</p><p>Journal of Orthopaedic Surgery and Research 2007;2():15-15.</p><p>Published online 15 Oct 2007</p><p>PMCID:PMC2146995.</p><p></p> (A) Maximum Enhancement at the examined sites (both proximal femora and distal femora, the similar pattern was found, data not shown here for distal femora) showed a significant decrease from baseline in ONrabbits at week 2 after steroid induction. There were significant decrease in Maximum Enhancement between ONand ONgroup, MON and SON group at week 2 (p < 0.05). (B) Representative Time-Signal Intensity curves from contrast-enhanced dynamic MRI on proximal femur. The Time-Signal Intensity curve showed a significant decrease in enhancement slope in ONgroup as compared with ONgroup at week 2