Abstract #1298

Inter-rater reliability of sciatic nerve evaluation with MR neurography: a comparison study of multiple sequences

Ryuna Kurosawa¹, Hajime Yokota², Takafumi Yoda¹, Takayuki Sada¹, Koji Matsumoto¹, Takashi Namiki³, Masami Yoneyama³, Yoshitada Masuda¹, and Takashi Uno²

¹Department of Radiology, Chiba University Hospital, Chiba, Japan, ²Diagnostic Radiology and Radiation Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan, ³Philips Japan, Tokyo, Japan

MR neurography (MRN) is a useful technique to evaluate damaged peripheral nerves showing increased signal intensity and enlarged nerve diameter. Although various MRN sequences have been developed, the inter-rater reliability of MRN have rarely been evaluated. Therefore, the purpose of this study was to evaluate inter-rater reliability of sciatic nerve evaluation with MRN sequences: T2WI, 3D-STIR, T2-FFE, 3D-iNerveVIEW, Diffusion-neurography, DTI, and pcDSDE. Measured diameters varied among the sequences. 3D-iNerveVIEW showed a high inter-rater reliability for signal measurements. In MRN, it is important to understand the characteristics of each sequence.

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