Article Figures & Data
Figures
- Fig 1.
Contrast enhancement of an annular tear at initial and follow-up imaging.
A, Annular tear shows contrast enhancement. Sagittal T1-weighted contrast-enhanced MR image (600/14 [TR/TE]) of the lumbar spine shows focal contrast enhancement at the posterior margin of the L5-S1 disk.
B, Image of the same patient shown in A. Sagittal T1-weighted contrast-enhanced MR image (600/14) obtained 24 months later reveals persistent enhancement of the annular tear at the posterior margin of the L5-S1 disk.
- Fig 2.
Hyperintensity at initial and follow-up imaging.
A, An initial sagittal fast spin-echo (2800/98) T2-weighted MR image shows the lumbar spine has abnormal focal hyperintensity in the posterior margin of the L5-S1 disk, indicating annular tear.
B, Image of the same patient shown in A. Sagittal fast spin-echo T2-weighted MR image (2800/98) obtained 26 months later reveals persistent abnormal focal hyperintensity at the posterior margins of the L5-S1 disk.
Tables
- TABLE 1:
Annular tears studied with consecutive T2-weighted and contrast-enhanced T1-weighted imaging (n = 10)
Initial Examination Follow-up Examination Abnormal signal (T2-weighted imaging) 10 9 Normal signal (T2-weighted imaging) 0 1 Focal enhancement (contrast-enhanced T1-weighted imaging) 10 10 Absent enhancement (contrast-enhanced T1-weighted imaging) 0 0 Initial Examination Follow-up Examination Abnormal signal intensity 12 11 Normal signal intensity 0 1
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