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Effects of image quality deterioration and data shortage on automatic white matter bundle segmentation by diffusion magnetic resonance imaging

Yuichi Suzuki¹, Tsuyoshi Ueyama¹, Takahiro Iwasaki¹, Jiro Sato¹, Hideyuki Iwanaga¹, and Osamu Abe¹
¹Department of Radiology, THe University of Tokyo Hospital, Tokyo, Japan

We investigated the effect of image quality deterioration and data shortage of DWI on automatic white matter bundle segmentation. There was almost no difference in bundle segmentation ability between SMS factors of 2 and 3. For MPG, 16 axes provided results comparable to the GS data (64 axes).

Fig.4. The left pyramidal tract (example) images of MPG comparison

Fiber bundles different from anatomical running were not visually observed under any conditions as well as SMS comparison.