This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. A. Hypothesis: 1. MRA will effectively delineated neovascularization of the inflamed synovium. 2. MRA assessment of synovial vascularity will correlate with PDU measures of synovial blood flow. 3. MRA and PDU findings will correlate with previously validated MRI markers of RA disease activity. 4. MRA and PDU findings will correlate with serologic and clinical markers of inflammatory arthritis. B.
Aims : 1. To ascertain if MRA is an effective method of imaging neovascularization in the inflamed RA synovium. 2. To correlate MRA measures of synovial vascularity with PDU measures of synovial blood flow. 3. To correlate MRA and PDU findings with validated MRI signs of joint inflammation. 4. To correlate MRA and PDU findings with serologic and clinical markers of inflammatory arthritis.
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