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Helical CT of the Cervical Spine for Trauma Patients

A Time Study

Richard H. Daffner1

1 Department of Diagnostic Radiology, Allegheny General Hospital, 320 East North Ave., Pittsburgh, PA 15212-4772.



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  		Fig. 1A. —Radiographic and CT images of 300-lb (135-kg) quadriplegic 29-year-old man after motor vehicle crash. Lateral radiograph shows three complete vertebrae and portion of C4.

 


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  		Fig. 1B. —Radiographic and CT images of 300-lb (135-kg) quadriplegic 29-year-old man after motor vehicle crash. Swimmer view radiograph is not satisfactory in penetrating patient's neck and shoulders. This film was the third and final attempt. Total time for radiography in this patient: 32 min.

 


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  		Fig. 1C. —Radiographic and CT images of 300-lb (135-kg) quadriplegic 29-year-old man after motor vehicle crash. Axial CT image of C6 shows burst fracture with retropulsed fragment (arrow) narrowing vertebral canal by 50%. Note streak artifacts from patient's shoulders.

 


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  		Fig. 1D. —Radiographic and CT images of 300-lb (135-kg) quadriplegic 29-year-old man after motor vehicle crash. Sagittal CT reconstructed image shows retropulsed fragment at C6 (arrow). In addition, there is anterolisthesis of C4 on C5 due to associated unilateral jumped facet at that level. Note different appearances of spinous processes from C4 and above, caused by rotation. Total time for CT examination in this patient: 13 min.

 

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