空气的CT值是（ ）The CT value of air is ( )
A: 1000HU
B: 100HU
C: 0HU
D: -100HU
E: -1000HU
A: 1000HU
B: 100HU
C: 0HU
D: -100HU
E: -1000HU
举一反三
- 水的CT值约（）Hu，空气的CT值（）Hu。
- The differential absorption of the x-ray beam by different tissues produces various image density, which on CT scans are measured in Hounsfield units (), which of the following description below is NOT correct: ( ) A: Air is measured -1000 HU B: Fat is measured -120 Hu C: Bone is measured +1000 Hu D: Calcification is measured from 80 to 100 Hu
- CT值是反映组织对()的吸收值(衰减系数u),是评价组织器官()的量化值。即吸收系数,单位为Hu。水的CT值为()Hu,脂肪CT值为()Hu,骨CT值为()Hu,空气CT值为()Hu。
- 水的CT值范围是：() A: 22～32 HU B: 46～66 HU C: 10～20 HU D: -10～0 HUE E: 120～150 HU
- 水的CT值范围是: ( ) A: 22~32 HU B: -10~O HU C: 46~66 HU D: 10~20 HU E: 120~150 HU