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http://dx.doi.org/10.13104/imri.2021.25.3.164

Assessment of Mild Cognitive Impairment in Elderly Subjects Using a Fully Automated Brain Segmentation Software  

Kwon, Chiheon (Department of Radiology, Seoul National University Hospital)
Kang, Koung Mi (Department of Radiology, Seoul National University Hospital)
Byun, Min Soo (Department of Psychiatry, Pusan National University Yangsan Hospital)
Yi, Dahyun (Institute of Human Behavioral Medicine, Seoul National University Medical Research Center)
Song, Huijin (Biomedical Research Institute, Seoul National University Hospital)
Lee, Ji Ye (Department of Radiology, Seoul National University Hospital)
Hwang, Inpyeong (Department of Radiology, Seoul National University Hospital)
Yoo, Roh-Eul (Department of Radiology, Seoul National University Hospital)
Yun, Tae Jin (Department of Radiology, Seoul National University Hospital)
Choi, Seung Hong (Department of Radiology, Seoul National University Hospital)
Kim, Ji-hoon (Department of Radiology, Seoul National University Hospital)
Sohn, Chul-Ho (Department of Radiology, Seoul National University Hospital)
Lee, Dong Young (Department of Neuropsychiatry, Seoul National University Hospital)
Publication Information
Investigative Magnetic Resonance Imaging / v.25, no.3, 2021 , pp. 164-171 More about this Journal
Abstract
Purpose: Mild cognitive impairment (MCI) is a prodromal stage of Alzheimer's disease (AD). Brain atrophy in this disease spectrum begins in the medial temporal lobe structure, which can be recognized by magnetic resonance imaging. To overcome the unsatisfactory inter-observer reliability of visual evaluation, quantitative brain volumetry has been developed and widely investigated for the diagnosis of MCI and AD. The aim of this study was to assess the prediction accuracy of quantitative brain volumetry using a fully automated segmentation software package, NeuroQuant®, for the diagnosis of MCI. Materials and Methods: A total of 418 subjects from the Korean Brain Aging Study for Early Diagnosis and Prediction of Alzheimer's Disease cohort were included in our study. Each participant was allocated to either a cognitively normal old group (n = 285) or an MCI group (n = 133). Brain volumetric data were obtained from T1-weighted images using the NeuroQuant software package. Logistic regression and receiver operating characteristic (ROC) curve analyses were performed to investigate relevant brain regions and their prediction accuracies. Results: Multivariate logistic regression analysis revealed that normative percentiles of the hippocampus (P < 0.001), amygdala (P = 0.003), frontal lobe (P = 0.049), medial parietal lobe (P = 0.023), and third ventricle (P = 0.012) were independent predictive factors for MCI. In ROC analysis, normative percentiles of the hippocampus and amygdala showed fair accuracies in the diagnosis of MCI (area under the curve: 0.739 and 0.727, respectively). Conclusion: Normative percentiles of the hippocampus and amygdala provided by the fully automated segmentation software could be used for screening MCI with a reasonable post-processing time. This information might help us interpret structural MRI in patients with cognitive impairment.
Keywords
Automated brain segmentation; Magnetic resonance imaging; Mild cognitive impairment;
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