Centiloid method evaluation for amyloid PET of subcortical vascular dementia.

Centiloid method evaluation for amyloid PET of subcortical vascular dementia.
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DOI:
10.1038/s41598-017-16236-1
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发表时间:
2017-11-24
期刊:
影响因子:
4.6
通讯作者:
Seo SW
Seo SW
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Yun HJ;Moon SH;Kim HJ;Lockhart SN;Choe YS;Lee KH;Na DL;Lee JM;Seo SW

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参考区域的选择对于正确的淀粉样蛋白PET分析非常重要,特别是在皮质下血管性痴呆(SVaD)患者中。我们研究了参考区域之间的差异SVaD和阿尔茨海默病(AD)使用Centiloid分数。在57例[C-11]匹兹堡化合物B(PiB)阳性(+)AD和23例PiB(+)SVaD患者中,我们评估了疾病特异性皮质区域的标准化PiB摄取和Centiloid评分,其中包括几个参考区域:小脑灰质(CG)、整个小脑(WC)、带脑干的WC(WC + B)、脑桥和白色物质(WM)。我们根据参考区域计算了疾病组与年轻对照组的差异(YC)和YC方差。使用所有参考区域,SVaD患者显示出较大的效应量(Cohen's d > 0.8)。WM和脑桥的YC变异较大。AD患者的结果相似。CG、WC和WC + B是SVaD淀粉样蛋白成像分析的可靠参考区域,但WM或脑桥不是。
Reference region selection is important for proper amyloid PET analysis, especially in subcortical vascular dementia (SVaD) patients. We investigated reference region differences between SVaD and Alzheimer’s disease (AD) using Centiloid scores. In 57 [C-11] Pittsburgh compound B (PiB) positive (+) AD and 23 PiB (+) SVaD patients, we assessed standardized PiB uptake and Centiloid scores in disease-specific cortical regions, with several reference regions: cerebellar gray (CG), whole cerebellum (WC), WC with brainstem (WC + B), pons, and white matter (WM). We calculated disease group differences from young controls (YC) and YC variance according to reference region. SVaD patients showed large effect sizes (Cohen’s d > 0.8) using all reference regions. WM and pons showed larger YC variances than other regions. Findings were similar for AD patients. CG, WC, and WC + B, but not WM or pons, are reliable reference regions for amyloid imaging analysis in SVaD.
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