Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (51): 8223-8227.doi: 10.3969/j.issn.2095-4344.2015.51.005

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Comparative study on different sequence MRI imaging of the sacroiliac joint cartilage

Liu Bo1, Shi Da-peng2, Zheng Fu-zeng3, Sun Yong-qiang3, Yang Zhong-jie1, Wang Tong-ming1   

  1. 1Department of Radiology, Henan Province Hospital of TCM, Zhengzhou 450002, Henan Province, China; 2Imaging Center, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China; 3Department of Orthopedics, Henan Province Hospital of TCM, Zhengzhou 450002, Henan Province, China
  • Received:2015-10-21 Online:2015-12-10 Published:2015-12-10
  • Contact: Shi Da-peng, M.D., Chief physician, Imaging Center, Henan Provincial People’s Hospital, Zhengzhou 450003, Henan Province, China
  • About author:Liu Bo, Master, Attending physician, Department of Radiology, Henan Province Hospital of TCM, Zhengzhou 450002, Henan Province, China
  • Supported by:

    the Scientific Tackle Key Project of Henan Province, No. 132102310159

Abstract:

BACKGROUND: Plain films and CT cannot show the variation of the articular cartilages. Although MRI can show the cartilage, the conventional sequence imaging of the cartilage is ineffective. To optimize MRI sequence is very important to detect cartilage lesions.
OBJECTIVE: To find the most suitable sequences for MRI imaging of sacroiliac joint cartilage.
METHODS: Forty-five healthy voluntary subjects were subjected to MRI scans of the sacroiliac joint at T1WI, T2WI, T1-flash-3d-water-cor, T2-me3d-cor, T2-me2d-cor and T1-se-cor-water-fil. Clarity of the sacroiliac joint cartilage, internal signal changes and cartilage surface defects shown on MRI images were compared.
RESULTS AND CONCLUSION: MRI images with T1WI and T2WI sequences displayed the sacroiliac articular cartilage as a higher signal band with vague joint space. MRI images with T1-se-cor-water-fil displayed five 
parallel lines between bilateral cortical bone on the joint surface and iliac cartilage, sacral cartilage and cartilage gap. MRI images with T2-me3d-cor and T1-flash-3D-water-cor-fil displayed the sacroiliac articular cartilage as a bright, clear high signal band that had clear boundaries with the surrounding cortical bone and bone marrow, but the sacral and iliac cartilage could not be distinguished. MRI images with T2-me2d-cor sequence showed iliac cartilage, sacral cartilage and joint space in 37 of 45 cases. Diffusion tensor imaging could display the articular cartilage partially with vague structure and the signal strength had no contrast. These findings indicate that T1-se-cor-water-fil is superior to other sequences to display the cartilage, internal signal and cartilage surface defects. T1-flash-3d-water-cor, T2-me3d-cor and T2-me2d-cor are better than conventional MRI sequences rather than T1-se-cor-water-fil. 

 

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