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Doing More with Less: Diagnostic Accuracy of CT in Suspected Cauda Equina Syndrome

AJNR. American journal of neuroradiology | 30 Oct 2016

JG Peacock and VM Timpone
Abstract
Cauda equina syndrome typically requires emergent MR imaging to detect compressive lesions on the cauda equina, which may require surgical decompression. While CT is sometimes performed as a complementary imaging technique to evaluate osseous integrity in patients with cauda equina syndrome, the accuracy of CT in detecting significant spinal stenosis and cauda equina impingement is not well-defined in the literature. We hypothesized that percentage thecal sac effacement on CT of the lumbar spine would have high sensitivity and high negative predictive value in evaluating significant spinal stenosis and cauda equina impingement.
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Concepts
Binary classification, Vertebral column, Cauda equina syndrome, Sensitivity and specificity, Negative predictive value, Positive predictive value, Cauda equina
MeSH headings
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