Abstract #0648

Bowtie PROPELLER: A Fast & Efficient Motion Correction Method in MRI

Hisamoto Moriguchi^1,2, Shin-ichi Urayama³, Yutaka Imai¹, Manabu Honda⁴, Takashi Hanakawa^4,5

¹Radiology, Tokai University, Isehara, Kanagawa, Japan; ²Radiology, Hiratsuka municipal hospital, Hiratsuka, Kanagawa, Japan; ³Human Brain Research Center, Kyoto University, Kyoto, Japan; ⁴Functional Brain Research, National Center of Neurology & Psychiatry, Kodaira, Tokyo, Japan; ⁵Precursory Research for Embryonic Science & Technology, Japan Science & Technology Agency, Japan

PROPELLER has shown to have significantly reduced sensitivity to motion artifacts. A primary disadvantage of PROPELLER is extended scan time. In this study, a novel sampling and reconstruction technique that can significantly reduce the scan time of PROPELLER has been demonstrated. This new technique is referred to as ebowtie PROPELLERf since the shape of each blade appears to be a ebowtief. The total scan time of bowtie PROPELLER is usually shorter than 50% of the conventional PROPELLER. Bowtie PROPELLER is a very useful motion correction technique with reduced scan time while maintaining the image quality.