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Abstract #0964

Increased Extra-neurite Conductivity of Brain in Patients with Alzheimer’s Disease

Geon-Ho Jahng1, Seowon Hong1, Yunjeong Choi2, Mun Bae Lee3, Hak Young Rhee4, Soonchan Park1, Chang-Woo Ryu1, Wook Jin1, and Oh In Kwon3
1Radiology, Kyung Hee University Hospital at Gangdong, Seoul, Korea, Republic of, 2Biomedical Engineering, Kyung Hee University, Yongin-si, Korea, Republic of, 3Mathematics, Konkuk University, Seoul, Korea, Republic of, 4Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Korea, Republic of

Synopsis

Keywords: Alzheimer's Disease, Alzheimer's Disease

Motivation: The decomposed high-frequency conductivity (HFC) into extra-neurite and intra-neurite components to calculate compartmental conductivities has not been applied to any neurological conditions.

Goal(s): To investigate how the separated extra-neurite conductivity (EC) and intra-neurite conductivity (IC) were reflected in Alzheimer’s disease (AD) patients and to evaluate the association between compartmental conductivities and cognitive decline

Approach: A total 66 patients included in 20 AD patients, 25 amnestic MCI patients, and 21 controls were scanned with a multi-echo turbo spin-echo and multi-shell diffusion tensor EPI sequences.

Results: The EC value was higher in patients with AD than others and decreased with increasing K-MMSE scores.

Impact: The EC value might be used as an imaging biomarker for helping to monitor cognitive function.

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