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Serial single photon emission computed tomography imaging in patients with cerebral lupus during acute exacerbation
1Department of Pediatrics, Chang Gung Children's Hospital and Chang Gung Medical College, Taoyuan, Taiwan.
Abstract:
Single photon emission computed tomography (SPECT) with [99mTc] HMPAO was performed sequentially every week in 4 patients with systemic lupus erythematosus (SLE), from the acute phase of neurologic involvement until normal cerebral blood flow (CBF) was detected by the scan. SPECT accurately reflects central nervous system (CNS) abnormalities in patients with SLE and correlates with subsequent improvement. Correlated with the patients' rapid clinical improvement, the brain SPECT blood flow scan demonstrated homogeneous distribution in 1 to 9 weeks. In these four patients, the defect in CBF could be reversed by optimal treatment. Brain SPECT blood flow scan may be used as a biologic marker of pathologic activity in the brain of patients with SLE.