Which imaging modality is commonly used to diagnose coronary artery calcification?
A. Magnetic resonance imaging (MRI)
B. Positron emission tomography (PET)
Computed tomography (CT)
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Which of the following statements is correct (only one answer is correct):
A. Barium meals are insoluble in water, and their application as contrast agents is to coat the walls of gastrointestinal organs.
Barium meal slurry is widely used as a vascular imaging agent in CT imaging.
C. Iodine contrast agent needs to be delivered through the rectum due to its toxicity and insolubility.
In computed tomography imaging, the main purpose of the window is
Adjust the window width
B. Enhanced contrast sensitivity
C. Adjust the center of the window width
HU measurement compares the measured attenuation coefficient of tissue slice with what?
A. Fat attenuation coefficient
B. Attenuation coefficient of bone
C. Water attenuation coefficient
From a CT image using black and white scale and calibrated with HU, the bone will show:
A. Black
B. Gray
C. White
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