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
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
C
举一反三
- which variable will be measured in the feedback control?______ will be measured in the feedback control.
- "Sound", as defined by the psychologist, ______. A: can be measured in the same way that "noise" is measured B: may be extremely harmful to health C: is not at all different from "noise" D: can be measured by machines
- 中国大学MOOC: If a country produces good Y (measured on the vertical axis) and good X (measured on the horizontal axis), then the absolute value of the slope of its production possibility frontier is equal to _____________.
- which is the measured word for '水'? A: 个 B: 支 C: 瓶
- Going back to the earlier data set of human second molar breadth, calculate the following:What is the range (measured to 0.1 mmm)______ What is the standard deviation (measured to 0.1 mmm)______ What is the coefficient of variation (measured to 0.1)______
内容
- 0
Lengths are measured in _____.
- 1
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
- 2
If X and Y are measured in the same units and we consider a point that lies below a 45° line, then we know that for the X and Y combination associated with this point, <p></p>
- 3
Appraisal form is a rating scale in which employee’s actual performance is measured against______.
- 4
Which of the following means a measured portion of medicine taken at any one time? A: vaccine B: antigen C: immunogenicity D: dosage