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Abstract #4516

Improved segmentation of neuromelanin region for low SNR short scan sandwichNM imaging

Joonhyeok Yoon1, Juhyung Park1, Yoonho Nam2, Chul-Ho Sohn3,4, Junghwa Kang2, Jonghyo Youn1, Sooyeon Ji1, Chungseok Oh1, and Jongho Lee1
1Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea, Republic of, 2Department of Biomedical Engineering, Hankuk University of Foreign Studies, Gyeonggi-do, Korea, Republic of, 3Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea, Republic of, 4Department of Radiology, Seoul National University Hospital, Seoul, Korea, Republic of

Synopsis

Keywords: Machine Learning/Artificial Intelligence, Parkinson's Disease, Neuromelanin, Denoising

Neuromelanin (NM) has been considered an associated biomarker of Parkinson’s disease (PD). Conventional NM visualizeing techniques requires about 5~10min which is sub-optimal for scanning PD patient with movement disorders. Recently, SandwichNM is reduced scan time to 5m 30s, but it is still may not enough.

In this research, we approach this issue in the viewpoint of image post processing with denoising techniques to reduce scan time. After 162 NM MRI data acquisition with short scan time, we demonstrated that using denoising technique can improve the distinguishability for NM segmentation.

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Keywords