Abstract #3359

Commercially available astriction cotton as a anisotropic DTI phantom: Comparisons with a hand-bundled fibers and a glass capillary plate

Koji Sakai¹, Yasuhiko Tachibana², Toshiaki Nakagawa³, Hiroyasu Ikeno³, Takayuki Obata², and Kei Yamada¹

¹Kyoto Prefectural University of Medicine, Kyoto, Japan, ²National Institute of Radiological Sciences, Chiba, Japan, ³Kyoto Prefectural University of Medicine Hospital, Kyoto, Japan

We compared DTI measures among three different anisotropic diffusion phantoms: a commercially available astriction cotton; a glass capillary plate; a hand-bundled polyethylene fibers. The purpose of this study was to examine whether the cotton is useful as an anisotropic diffusion phantom. Differences in ADC and FA were evaluated by comparing coefficients of variation (CVs). No significant difference was seen for the largest eigen value: 2.06 - 2.14 x 10^-3 mm²/sec. Clear differences in FA were seen among the three DTI phantoms (p = 0.0079). CVs from five acquisitions for ADC and FA from every phantoms were all less than 2%.

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