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Abstract #1727

SWI of the Cervical-Spinal Cord with Respiration Noise correction using Navigator Echo

Hongpyo Lee 1 , Yoonho Nam 2 , Dongyeob Han 1 , Sung-Min Gho 1 , and Dong-Hyun Kim 1

1 Electrical & Electronic Engineering, Yonsei University, Seodaemun-gu, Soeul, Korea, 2 Electrical & Computer Engineering, Soeul National University, Gwanak-gu, Soeul, Korea

Susceptibility Imaging can be useful for assessing structural integrity in the spinal cord, which plays an important role in many neurological disorders.1 However, physiological noise from respiration causes artifacts in in-vivo images. This phenomenon is particularly evident in the Cervical-spinal (C-spine) cord because the distance between the C-spine and the lungs is closer than other regions 2. In order to characterize and correct these respiration-induced artifacts of images, navigator echo approaches have been widely used in functional MRI, Diffusion Imaging etc 3 In this study, B0 shift due to respiration is analyzed and this effect is compensated using navigator echoes. Susceptibility weighted image (SWI) of the C-spine is obtained using the correction scheme.

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