问题
单项选择题
有关腰椎椎管CT检查和测量，错误的是：
A．前后径指测量椎体后缘中点至棘突基底部中线部位的距离
B．横径指测量两椎弓根内缘之间距离
C．前后径正常范围在15mm-2mm
D．横径正常范围在20mm-30mm
E．CT增强扫描较平扫更精确
答案
参考答案：E
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有关腰椎椎管CT检查和测量，错误的是：
A．前后径指测量椎体后缘中点至棘突基底部中线部位的距离
B．横径指测量两椎弓根内缘之间距离
C．前后径正常范围在15mm-2mm
D．横径正常范围在20mm-30mm
E．CT增强扫描较平扫更精确
参考答案：E
| 读一读,选一选。 |
| ( )1.Are you ready for your trip tomorrow? ( )2.Who is going to America? ( )3.Where is grandma going to go? ( )4.What is Daming going to take? ( )5.When is Daming going to the airport? ( )6.Make a list of things to do. | A. Clothes,shoes,present,ticket,toothbrush .. B: At seven o'clock tomorrow morning. C. Daming. D. I think so. E. To the airport. F. That's a good idea. |