中国神经再生研究(英文版) ›› 2021, Vol. 16 ›› Issue (11): 2293-2298.doi: 10.4103/1673-5374.310690

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

微型计算机断层扫描评估小动物脊髓囊性病变

  

  • 出版日期:2021-11-15 发布日期:2021-04-13
  • 基金资助:

    美国Conquer Chiari资助项目

Micro-computed tomography utility for estimation of intraparenchymal spinal cord cystic lesions in small animals

Mahmoud Farrag, Dipak D. Pukale, Nic D. Leipzig   

  1. 1Integrated Bioscience Program, The University of Akron, Akron, OH, USA; 2Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, OH, USA; 3Department of Chemical, Biomolecular, and Corrosion Engineering, Integrated Bioscience Program, The University of Akron, Akron, OH, USA
  • Online:2021-11-15 Published:2021-04-13
  • Contact: Nic D. Leipzig, PhD, nl21@uakron.edu.
  • Supported by:
    This study was financially supported by Conquer Chiari.

摘要:

精确评估脊髓囊性病变对制定有效的治疗策略至关重要,尽管许多研究显示通过组织学评估病变大小的结果不一致,但病变的组织学评估仍是主要方法。另一方面,尽管计算机断层扫描(micro-CT)成像和分析取得了许多进步,可以精确测量病灶的大小,但有关其应用的公开数据不足以估算实验室动物模型中的椎管内病灶的大小。实验使用创伤后脊髓空洞症大鼠模型,比较微型CT和传统组织学分析方法评估囊肿大小的准确性。研究表明,微型CT可以检测到脊髓内的病变,与组织学非常相似。重要的是,微型CT可以通过更多测量(例如表面积)来提供更准确的病变评估,并且可以在目标组织(脊髓)完整的情况下完成评估;同时其还能检测脊髓内外来注射物质,从而证实了微型CT用于小动物脊髓空洞损伤研究的重要的价值。

https://orcid.org/0000-0002-6356-7691 (Nic D. Leipzig)

Abstract: Precise assessment of spinal cord cystic lesions is crucial to formulate effective therapeutic strategies, yet histological assessment of the lesion remains the primary method despite numerous studies showing inconsistent results regarding estimation of lesion size via histology. On the other hand, despite numerous advances in micro-computed tomography (micro-CT) imaging and analysis that have allowed precise measurements of lesion size, there is not enough published data on its application to estimate intraspinal lesion size in laboratory animal models. This work attempts to show that micro-CT can be valuable for spinal cord injury research by demonstrating accurate estimation of syrinx size and compares between micro-CT and traditional histological analysis. We used a post-traumatic syringomyelia rat model to compare micro-CT analysis to conventional histological analysis. The study showed that micro-CT can detect lesions within the spinal cord very similar to histology. Importantly, micro-CT appears to provide more accurate estimates of the lesions with more measures (e.g., surface area), can detect compounds within the cord, and can be done with the tissue of interest (spinal cord) intact. In summary, the experimental work presented here provides one of the first investigations of the use of micro-CT for estimating the size of intraparenchymal cysts and detecting materials within the spinal cord. All animal procedures were approved by the University of Akron Institutional Animal Care and Use Committee (IACUC) (protocol # LRE 16-05-09 approved on May 14, 2016). 

Key words: cyst size, histology, intraparenchymal cysts, lesion size estimate, micro-CT, post-traumatic syringomyelia, spinal cord imaging, spinal cord injury, spinal cystic lesion, syrinx