来自《耶鲁大学开放课程：生物医学工程探索 第20集 第20集》

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  What if I wanted to look at this in more detail,
  如果我想看到更多的细节
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  or I wanted to distinguish what part of this is this aortic arch
  或者说我想分辨出哪部分是主动脉弓
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  and what part is the spine, how would I change the imaging?
  哪部分是脊椎 我该怎样改进呢
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  Sarah?
  萨拉
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  Yeah, you could ask the patient to turn
  是的 你可以要求病人转身
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  to the side and you could then do the same measurement this way.
  然后再依样画葫芦地测一遍
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  Now, you'd see another projection
  你就能看到另一个投影
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  but you see a projection from another angle.
  是从另一个角度的投影
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  So, you would be able to differentiate
  所以你能分辨出
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  what is different in this direction.
  这个方向上的不同
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  You might do it obliquely,
  也可以通过间接的方式
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  you might ask the patient to turn a little bit sideways
  要求病人向这边转一点