Abstract #3648

Diffusion Time Dependence of Diffusion Tensor Parameters in the Evaluation of Meningioma Subtype: a Preliminary Study

Tomoko Maekawa^1,2, Masaaki Hori¹, Katsutoshi Murata³, Christina Andica¹, Yutaka Ikenouchi¹, Shohei Fujita¹, Ryusuke Irie^1,2, Akifumi Hagiwara^1,2, Kamiya Kouhei^1,2, Koji Kamagata¹, Akihiko Wada¹, and Shigeki Aoki¹

¹Radiology, Juntendo University Hospital, Tokyo, Japan, ²Radiology, The University of Tokyo Hospital, Tokyo, Japan, ³Siemens Healthcare Japan KK, Tokyo, Japan

We investigated the DTI eigenvalues and MD of five types of meningioma acquired with a shorter diffusion time using an OGSE sequence. Eleven meningiomas that consisted of 4 meningothelial meningiomas, 2 fibrous meningiomas, 2 transitional meningiomas, 1 psammomatous meningioma, and 2 atypical meningiomas were analyzed. Our results showed that the psammomatous and atypical meningiomas had a relatively strong diffusion time-dependence of diffusion tensor metrics. The use of shorter diffusion time with DTI provide additional information about the microstructure of each meningioma subtypes.

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