问题：1。undergo一词用错2。怎么分析，由谁分析?

　　Revised: Twenty-five patients with AUCT underwent MSCT scanning with 1mm collimation, 50% overlapping reconstruction, where multiplanar reconstruction (MPR), 3-dimensional shaded-surface display(3D-SSD) and volume rendering(VR) were applied. 【Imageological features of】 the fracture, location, and ligament injury were analyzed 【by three senior radiologists together / independently】.

　　Results: The fracture was well displayed, especially in the axial and MPR images, and the horizontal fracture and variance of odontoid were also detected on these images. The dislocation was well showed in MPR, VR, or SSD, and the ligamentous injury was showed asymmtry of ligament in axial and VR images.

　　问题：1。介词in → on 2。 .. was showed asymmtry (asymmetry)结构错误

　　Revised: The fractures were well displayed, especially on the axial and MPR images, and the horizontal fractures and variance of odontoid were also detected on these images. The dislocation was well shown on MPR, VR, or SSD, and the ligamentous injury was shown to be asymmetric on axial and VR images.

　　Conclusion: A spiral scan of 1mm collimation combined with MPR and VR was the optimal technique in upper cervical examination with current 4-slice scanner, and could reveal the condition of upper cervical trauma.

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