No benefit for MRI after normal cervical CT in blunt trauma

No benefit for MRI after normal cervical CT in blunt trauma

(HealthDay)—For patients with obtunded blunt trauma to the cervical spine, magnetic resonance imaging (MRI) follow-up appears not to be beneficial after normal cervical computed tomography (CT) findings, according to a study published online March 14 in JAMA Surgery.

Xiao Wu, from the Yale School of Medicine in New Haven, Conn., and colleagues conducted a cost-effectiveness analysis to assess an average patient (aged 40 years) with blunt trauma. The utility and cost-effectiveness of MRI versus no follow-up after normal cervical CT findings were assessed.

The researchers found that the cost of MRI follow-up was $14,185 with a of 24.02 quality-adjusted life-years (QALYs) in the base case of a 40-year-old patient; the cost of no follow-up was $1,059 with a benefit of 24.11 QALYs. No follow-up was shown to be the better strategy in all 10,000 iterations in probabilistic sensitivity analysis. When the negative predictive value of the initial CT was relatively high (>98 percent), or the risk of an injury treated with a cervical collar turning into a permanent neurologic deficit was higher than 25 percent, or when the risk of a missed injury turning into a neurologic deficit was less than 58 percent, no follow-up was the better strategy.

"Magnetic resonance imaging had a lower health benefit and a higher cost compared with no follow-up after a normal CT finding in with obtunded blunt trauma to the cervical spine, a finding that does not support the use of MRI in this group of patients," the authors write.


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Journal information: JAMA Surgery

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Citation: No benefit for MRI after normal cervical CT in blunt trauma (2018, March 16) retrieved 26 January 2021 from https://medicalxpress.com/news/2018-03-benefit-mri-cervical-ct-blunt.html
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