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Positron emission computed tomography findings of neuropsychiatric systemic lupus erythematosus in children

  

  1. *Department of Pediatrics,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing  100730,China
  • Online:2018-01-06 Published:2018-01-26

儿童神经精神性狼疮头颅正电子发射断层显像特征分析

  

  1. 中国医学科学院北京协和医学院 a 儿科, b 核医学科,北京  100730

Abstract:

Objective To analyse the positron emission computed tomography(PET/CT) findings of neuropsychiatric systemic lupus erythematosus(NPSLE) in children. Methods Patients diagnosed with NPSLE treated at Department of Pediatrics,Peking Union Medical College Hospital from April 2012 to February 2014 were recruited. PET/CT using F-18-labelled fluorodeoxyglucose(18F-FDG) was performed in patients with NPSLE,and the results were analyzed. Results A total of 19 patients received 18F-FDG PET/CT and 13 of them were females. Age was from 7to14 years and median age was 11.3 years. The most common neuropsychiatric manifestation was headache(8/19), followed by seizure(7/19), cognition dysfunction(2/19),psychiatric disease(1/19) and ataxia(1/19). All patients under MRI examination,and only 4 of them were abnormal. 18F-FDG PET/CT revealed significant glucose hypometabolism in all patients. The temporal lobe(17/19) was the most susceptible brain regions,followed  by the parietal lobe(16/19),occipital lobe(14/19) and frontallobe(10/19). In contrast,glucose hypermetabolism was detected in basal ganglia(8 patients) and thalamus(3 patients). Conclusion PET reveals significant glucose hypometabolism with or without local hypermetabolism in patients with NPSLE.

Key words: neuropsychiatric systemic lupus erythematosus, positron emission computed tomography, systemic lupus erythematosus

摘要:

目的 分析儿童神经精神性狼疮(NPSLE)头颅正电子发射断层显像(PET/CT)的特点。方法 对2012年4月至2014年2月在北京协和医院儿科确诊为NPSLE,且在6个月内出现神经精神症状的患儿行头颅18氟-脱氧葡萄糖PET/CT检查,并对其神经精神症状、头颅PET/CT结果进行分析。结果 NPSLE患儿共19例,其中女13例、男6例, 发病年龄7~14岁, 中位年龄为11.3岁。神经精神症状表现依次为头痛(8/19)、 惊厥发作(7/19)、 认知功能障碍(2/19)、 精神病(1/19)、 运动失调(1/19)。所有患儿均行头颅磁共振成像检查, 仅4例异常。NPSLE患儿头颅18氟-脱氧葡萄糖PET/CT检查均有大脑皮质糖代谢减低, 其中最容易受累区域是颞叶(17/19), 其他受累区域依次为顶叶(16/19)、 枕叶(14/19)、 额叶(10/19)。8例有基底节糖代谢相对增高, 3例伴丘脑糖代谢相对增高。结论 NPSLE患儿PET/CT脑显像主要表现为大脑皮质糖代谢减低,伴或不伴局部糖代谢增高。

关键词: 神经精神性狼疮, 正电子发射断层显像术, 系统性红斑狼疮