MRI of Paraspinal Soft Tissues
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MRI of Paraspinal Soft Tissues book
Paraspinal conditions that may be imaged with advanced cross-sectional imaging such as magnetic resonance imaging (MRI) include inflammatory non-infectious or infectious myopathies, paraspinal abscesses, congenital conditions, traumatic injuries, and various neoplastic conditions affecting the muscles, fat, or connective tissue. MRI of paraspinal muscles should include T1W and T2W spin echo sequences and T1W post-contrast images. The addition of fat-suppressed sequences such as STIR or T2W images with fat saturation is strongly recommended, as they are more sensitive to detect changes in T2 relaxation time associated with increased intra- and extracellular water content (muscle edema). On MRI, a focal mass in the paraspinal soft tissues will be identified, of variable signal intensity depending on the histopathologic nature of the lesion. MRI of paraspinal tumors may be performed in patients without neurologic signs for assessment of tumor extension and to help define surgical margins.