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16-MDCT of the Posttraumatic Pediatric Elbow: Optimum Parameters and Associated Radiation Dose

¹ All authors: Massachusetts General Hospital, 7 Norwich Lane, Methuen, MA 01844.

OBJECTIVE. Our objective was to investigate a low-radiation-dose protocol for 16-MDCT of the posttraumatic pediatric elbow using z-axis automatic tube-current modulation, based on optimum scanning parameters determined in a porcine fracture model, and to report the radiation dose from this technique in nine children with acute elbow trauma.

CONCLUSION. For the posttraumatic pediatric elbow, 16-MDCT using z-axis automatic tube-current modulation was optimal at 100 kVp with a noise index of 20 and a minimum amperage of 25 mA.

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