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Abstract #4007

Irregular Respiratory Motion Correction in 3D T2w-TSE (PACE) Liver Imaging

Sang-Young Zho1, Jaeseok Park2, Dong-Hyun Kim1,2

1Electrical and Electronic Engineering, Yonsei University, Shinchon-Dong, Seoul, Korea; 2Radiology, Yonsei University, Shinchon-Dong, Seoul, Korea

irregular breahing during 3DFT T2w-TSE liver imaging cause motion artifact due to long echo-train length even with PACE technique. If we assume irregularity changes respiration period excluding cohghing and sighing, we can correct superior-infirior directional motion using navigator information before and after triggering. Navigator after triggering shows large variation.