PURPOSE: To distinguish malignant from osteoporotic acute vertebral collapses. MATERIALS AND METHODS: Sixty-three osteoporotic and 30 malignant vertebral collapses were studied in 51 patients (aged 33-88 years) with T1-weighted magnetic resonance (MR) images (n=93), gadolinium-enhanced T1-weighted images (n=72), and T2-weighted images (n=53). RESULTS: Four findings were suggestive of osteoporosis: retropulsion of a bone fragment (10 osteoporotic cases vs 0 malignant cases), preservation of normal signal intensity on T1-weighted images (43 vs four), return to normal signal intensity after gadolinium injection (42 vs four) with horizontal bandlike patterns, and isointense vertebrae on T2-weighted images (28 vs two). Six findings were suggestive of malignancy: convex posterior cortex (21 malignant cases vs four osteoporotic cases), epidural mass (24 vs 0), diffuse low signal intensity within the vertebral body on T1-weighted images (23 vs 12) and in the pedicles (24 vs four), high or inhomogeneous signal intensity after gadolinium injection (17 vs 0) and on T2-weighted images (17 vs 0). CONCLUSION: Gadolinium-enhanced and unenhanced MR images are useful in the differentiation of vertebral collapses.
PURPOSE: To distinguish malignant from osteoporotic acute vertebral collapses. MATERIALS AND METHODS: Sixty-three osteoporotic and 30 malignant vertebral collapses were studied in 51 patients (aged 33-88 years) with T1-weighted magnetic resonance (MR) images (n=93), gadolinium-enhanced T1-weighted images (n=72), and T2-weighted images (n=53). RESULTS: Four findings were suggestive of osteoporosis: retropulsion of a bone fragment (10 osteoporotic cases vs 0 malignant cases), preservation of normal signal intensity on T1-weighted images (43 vs four), return to normal signal intensity after gadolinium injection (42 vs four) with horizontal bandlike patterns, and isointense vertebrae on T2-weighted images (28 vs two). Six findings were suggestive of malignancy: convex posterior cortex (21 malignant cases vs four osteoporotic cases), epidural mass (24 vs 0), diffuse low signal intensity within the vertebral body on T1-weighted images (23 vs 12) and in the pedicles (24 vs four), high or inhomogeneous signal intensity after gadolinium injection (17 vs 0) and on T2-weighted images (17 vs 0). CONCLUSION:Gadolinium-enhanced and unenhanced MR images are useful in the differentiation of vertebral collapses.
Authors: Fernando Ruiz Santiago; Alicia Santiago Chinchilla; Luis Guzmán Álvarez; Antonio Luis Pérez Abela; Maria Del Mar Castellano García; Miguel Pajares López Journal: World J Radiol Date: 2014-06-28
Authors: Z Ito; A Harada; Y Matsui; M Takemura; N Wakao; T Suzuki; T Nihashi; S Kawatsu; H Shimokata; N Ishiguro Journal: Osteoporos Int Date: 2006-08-18 Impact factor: 4.507