Keywords: Skeletal, SkeletalThe current study aims to compare the detection ability of zero echo time(ZTE) MRI and CT in presenting bony change of sacroiliac joint in ankylosing spondylitis. It was concluded that the ankylosing spondylitis detection rate was comparable between ZTE MRI and CT, where the detection rate of bony erosions by ZTE MRI was higher than that by CT. Our observations indicated that in the future, the ZTE MRI may potentially replace the ionization-related CT method by providing a more comprehensive evaluation of sacroiliitis in ankylosing spondylitis patients.
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