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Proceedings Paper

Computer-aided classification of patients with dementia of Alzheimer's type based on cerebral blood flow determined with arterial spin labeling technique
Author(s): Yasuo Yamashita; Hidetaka Arimura; Takashi Yoshiura M.D.; Chiaki Tokunaga; Taiki Magome; Akira Monji; Tomoyuki Noguchi; Fukai Toyofuku; Masafumi Oki; Yasuhiko Nakamura; Hiroshi Honda
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Paper Abstract

Arterial spin labeling (ASL) is one of promising non-invasive magnetic resonance (MR) imaging techniques for diagnosis of Alzheimer's disease (AD) by measuring cerebral blood flow (CBF). The aim of this study was to develop a computer-aided classification system for AD patients based on CBFs measured by the ASL technique. The average CBFs in cortical regions were determined as functional image features based on the CBF map image, which was non-linearly transformed to a Talairach brain atlas by using a free-form deformation. An artificial neural network (ANN) was trained with the CBF functional features in 10 cortical regions, and was employed for distinguishing patients with AD from control subjects. For evaluation of the method, we applied the proposed method to 20 cases including ten AD patients and ten control subjects, who were scanned a 3.0-Tesla MR unit. As a result, the area under the receiver operating characteristic curve obtained by the proposed method was 0.893 based on a leave-one-out-by-case test in identification of AD cases among 20 cases. The proposed method would be feasible for classification of patients with AD.

Paper Details

Date Published: 9 March 2010
PDF: 8 pages
Proc. SPIE 7624, Medical Imaging 2010: Computer-Aided Diagnosis, 76241J (9 March 2010); doi: 10.1117/12.845530
Show Author Affiliations
Yasuo Yamashita, Kyushu Univ. (Japan)
Hidetaka Arimura, Kyushu Univ. (Japan)
Takashi Yoshiura M.D., Kyushu Univ. (Japan)
Chiaki Tokunaga, Kyushu Univ. (Japan)
Taiki Magome, Kyushu Univ. (Japan)
Akira Monji, Kyushu Univ. (Japan)
Tomoyuki Noguchi, Kyushu Univ. (Japan)
Fukai Toyofuku, Kyushu Univ. (Japan)
Masafumi Oki, Kyushu Univ. (Japan)
Yasuhiko Nakamura, Kyushu Univ. Hospital (Japan)
Hiroshi Honda, Kyushu Univ. (Japan)

Published in SPIE Proceedings Vol. 7624:
Medical Imaging 2010: Computer-Aided Diagnosis
Nico Karssemeijer; Ronald M. Summers, Editor(s)

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