Abstract #1579

Clinical assessment of simultaneous diffusion tensor imaging and T2 relaxometry of lumbar nerve roots in patients with low back pain

Takayuki Sakai^1,2, Masami Yoneyama³, Tosiaki Miyati⁴, Atsuya Watanabe^5,6, Eunju Kim⁷, and Noriyuki Yanagawa¹

¹Eastern Chiba Medical Center, Tougane, Japan, ²Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan, ³Philips Japan, Tokyo, Japan, ⁴Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan, ⁵Orthopaedic Surgery, Eastern Chiba Medical Center, Tougane, Japan, ⁶Chiba University Graduate School of Medicine, Chiba, Japan, ⁷Philips Healthcare Korea, Seoul, Korea, Democratic People's Republic of

We developed a single-shot dual-echo EPI-DTI sequence (Diffusion-Relaxation Matrix: DRM) that can simultaneously provide the diffusion tensor parameters and T2 values. The purpose of this study was to investigate the clinical feasibility of DRM for the lumbar nerve roots in patients with low back pain. FA values were negatively correlated with each quantitative value. Prolongation of T2 values were observed in case of abnormally enlarged nerve roots. Therefore,simultaneous acquisition of diffusion tensor imaging and T2 map by using DRM technique might be able to evaluate the extent of nerve disorders more accurately.

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