题目内容

In an inversion recovery T1-weighted image, tissues with short, medium, and long T1 relaxation times will have low T1 contrast between each other when TI is:

A. ) short, around 10 milliseconds.
B. ) long, around 3 seconds.
C. ) both A and B.

查看答案

搜索结果不匹配？点我反馈

更多问题

The diagnosis of lung tumours with CT imaging methods is routinely used due to:

A. a) the small difference in density between the lungs and the tumours
B. b) the large contrast between low density, air-filled lung tissue and solid lung tumour masses
C. c) the absence of other imaging modalities to diagnose tumours

查看答案

Which contrast agent is used routinely during a Coronary CT angiogram?

A. Gadolinium
Barium Sulfate
C. Iodine

查看答案

The CT values in the Hounsfield Unit(HU) scale are proportional to the measured attenuation coefficient μ of any tissue, scaled by the attenuation coefficient of water. The HU values for water and air are respectively:

A. -1000 and 0
B. 0 and -1000
C. 0 and -5000

查看答案

When imaging the liver, multiple focus areas should be used, because

A. We want to see the blood flow in the portal vein
B. It's a big organ
C. We want to increase the penetration of the sound beam

查看答案

In an inversion recovery T1-weighted image, tissues with short, medium, and long T1 relaxation times will have low T1 contrast between each other when TI is:

A. ) short, around 10 milliseconds. B. ) long, around 3 seconds. C. ) both A and B.

The diagnosis of lung tumours with CT imaging methods is routinely used due to:

Which contrast agent is used routinely during a Coronary CT angiogram?

The CT values in the Hounsfield Unit(HU) scale are proportional to the measured attenuation coefficient μ of any tissue, scaled by the attenuation coefficient of water. The HU values for water and air are respectively:

When imaging the liver, multiple focus areas should be used, because

A. ) short, around 10 milliseconds.
B. ) long, around 3 seconds.
C. ) both A and B.