Direct comparison of fluorodeoxyglucose positron emission tomography and arterial spin labeling magnetic resonance imaging in Alzheimer's disease

被引：156

作者：

Musiek, Erik S. ^{[1
]}

Chen, Yufen ^{[2
]}

Korczykowski, Marc ^{[2
]}

Saboury, Babak ^{[3
]}

Martinez, Patricia M. ^{[4
]}

Reddin, Janet S. ^{[3
]}

Alavi, Abass ^{[3
]}

Kimberg, Daniel Y. ^{[2
]}

Wolk, David A. ^{[1
]}

Julin, Per ^{[5
]}

Newberg, Andrew B. ^{[3
]}

Arnold, Steven E. ^{[4
]}

Detre, John A. ^{[1
,2
]}

机构：

[1] Univ Penn, Dept Neurol, Philadelphia, PA 19104 USA

[2] Univ Penn, Ctr Funct Neuroimaging, Philadelphia, PA 19104 USA

[3] Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA

[4] Univ Penn, Dept Psychiat, Philadelphia, PA 19104 USA

[5] AstraZeneca R&D, Sodertalje, Sweden

来源：

ALZHEIMERS & DEMENTIA | 2012年 / 8卷 / 01期

关键词：

ASL; FDG; PET; MRI; Alzheimer's disease; Spin label; Fluorodeoxyglucose; Dementia; CEREBRAL-BLOOD-FLOW; OPERATING CHARACTERISTIC CURVES; GLUCOSE-METABOLISM; AEROBIC GLYCOLYSIS; BRAIN METABOLISM; TRANSIT-TIME; DEMENTIA; PET; MRI; PATTERNS;

D O I：

10.1016/j.jalz.2011.06.003

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

eBackground: The utility of fluorodeoxyglucose positron emission tomography (FDG-PET) imaging in Alzheimer's disease (AD) diagnosis has been well established. Recently, measurement of cerebral blood flow using arterial spin labeling magnetic resonance imaging (ASL-MRI) has shown diagnostic potential in AD, although it has never been directly compared with FDG-PET. Methods: We used a novel imaging protocol to obtain FDG-PET and ASL-MRI images concurrently in 17 AD patients and 19 age-matched control subjects. Paired FDG-PET and ASL-MRI images from 19 control subjects and 15 AD patients were included for qualitative analysis, and paired images from 18 control subjects and 13 AD patients were suitable for quantitative analyses. Results: The combined imaging protocol was well tolerated. Both modalities revealed similar regional abnormalities in AD, as well as comparable sensitivity and specificity for the detection of AD after visual review by two expert readers. Interobserver agreement was better for FDG-PET (kappa: 0.75, standard error: 0.12) than ASL-MRI (kappa: 0.51, standard error: 0.15); intermodality agreement was moderate to strong (kappa: 0.45-0.61); and readers were more confident of FDG-PET reads. Simple quantitative analysis of global cerebral fluorodeoxyglucose uptake (FDG-PET) or whole-brain cerebral blood flow (ASL-MRI) showed excellent diagnostic accuracy for both modalities, with area under receiver operating characteristic curves of 0.90 for FDG-PET (95% confidence interval: 0.79-0.99) and 0.91 for ASL-MRI (95% confidence interval: 0.80-1.00). Conclusions: Our results demonstrate that FDG-PET and ASL-MRI identify similar regional abnormalities and have comparable diagnostic accuracy in a small population of AD patients, and support the further study of ASL-MRI in dementia diagnosis. (C) 2012 The Alzheimer's Association. All rights reserved.

引用

页码：51 / 59

页数：9

共 31 条

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