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Abstract #1549

Assessment of Myofiber-type Transformation in Rats with Discogenic Low Back Pain Using Diffusion Tensor Image of Paraspinal Muscles

Ying Wu1, Jiyao Ma2, Zhenguang Zhang1, Jiangyuan Pi3, Chao Gao1, Wenyang Leng1, Lisha Nie4, Yilong Huang1, and Bo He1
1The First Affiliated Hospital of Kunming Medical University, Kunming, China, 2The Second Affiliated Hospital of Kunming Medical University, Kunming, China, 3Kunming Medical University, Kunming, China, 4GE HealthCare MR Research, Beijing, China

Synopsis

Keywords: Muscle, Diffusion Tensor Imaging, Low back pain , Muscle fiber

Motivation: The development of discogenic low back pain (DLBP) and myofiber-type transformation in paraspinal muscles are strongly related. However, the impact of diffusion tensor imaging (DTI) in identifying myofiber-type transformation in paraspinal muscles remains uncertain.

Goal(s): Exploring the value of DTI in evaluating myofiber-type transformation in paraspinal muscles, and contributing to improved clinical diagnosis and intervention strategies for DLBP.

Approach: Prospective case-controlled animal experiments and establish the DLBP model in rats. DTI scanning and immunofluorescence of myofibers were performed to assess myofiber-type transformation.

Results: The fractional anisotropy (FA) was identified as a noninvasive imaging marker for detecting myofiber-type transformation in DLBP rats (r=0.4930, P<0.05).

Impact: Detection of myofiber-type in muscle biopsies is challenging. By utilizing DTI, clinicians can diagnose pathological alterations in paraspinal muscles early on, intervene quickly, and alleviate the burden on patients before the pain worsens.

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