Children whose parents strongly favored getting a CT scan for a minor head trauma were 4.4 times more likely to undergo the procedure than those whose parents deferred to the doctor, a Japanese study has found. Researchers reported in JAMA Pediatrics that 40% of children at low risk for suffering a brain injury had been scanned because their parents preferred it. "It's often that the parents' anxiety is what drives the physician to request the scan," emergency physician Dr. Robert Glatter said.

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