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10.1016/j.acra.2012.03.023

http://scihub22266oqcxt.onion/10.1016/j.acra.2012.03.023
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suck abstract from ncbi


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pmid22608862      Acad+Radiol 2012 ; 19 (8): 965-70
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  • Perfusion-weighted MR imaging in cerebral lupus erythematosus #MMPMID22608862
  • Wang PI; Cagnoli PC; McCune WJ; Schmidt-Wilcke T; Lowe SE; Graft CC; Gebarski SS; Chenevert TL; Khalatbari S; Myles JD; Watcharotone K; Cronin P; Sundgren PC
  • Acad Radiol 2012[Aug]; 19 (8): 965-70 PMID22608862show ga
  • RATIONALE AND OBJECTIVE: Neuropsychiatric systemic lupus erythematosus (NPSLE) is a diagnostically challenging, severe, and life-threatening condition, which is currently lacking a "gold standard." Our aim with this study is to look for magnetic resonance (MR) perfusion differences in NPSLE, SLE, and healthy control (HC) patients and correlate our findings with clinical parameters. MATERIALS AND METHODS: Twenty-four NPSLE patients, 21 SLE patients, and 21 HC underwent dynamic susceptibility contrast enhanced MR perfusion using a 3-T scanner. Nine prospectively selected intracranial regions of interest were placed in white and gray matter and the cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT) values were calculated. Subjects underwent clinical evaluation with SLEDAI and serum antibodies. RESULTS: The SLE patients had higher CBF and CBV compared to the HC overall (P = .01) and in specific areas (P = .03-.048). SLE patients with signs of active disease (elevated SLEDAI and anti-double-stranded DNA) had significantly elevated CBV, CBF, and MTT in the posterior cingulate gyrus (P = .01-.02). No significant difference was seen in the magnetic resonance perfusion measurements of NPSLE patients compared to SLE and HC, although the NPSLE patients also showed higher CBV variability compared to the SLE (P = .0004) and HC cohort (P < .0001). CONCLUSION: SLE patients have increased CBV and CBF compared to healthy controls. The SLE patients with clinical markers for active disease have elevated CBV, CBF, and MTT in the posterior cingulate gyrus. NPSLE patients show increased variability in perfusion measurements, which may explain why susceptibility contrast enhanced MRI has not yet provided a specific target for NPSLE.
  • |Adult[MESH]
  • |Brain Diseases/*pathology[MESH]
  • |Brain/*pathology[MESH]
  • |Female[MESH]
  • |Humans[MESH]
  • |Lupus Erythematosus, Systemic/*pathology[MESH]
  • |Magnetic Resonance Angiography/*methods[MESH]
  • |Male[MESH]
  • |Middle Aged[MESH]
  • |Reproducibility of Results[MESH]


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