問題一覧
1
What color are the bones and other calcified structures in X ray?
White
2
Which radiology method is used during cardiac catheterization procedure?
fluoroscopy
3
Which radiology method is used during placement of intravenous catheters?
fluoroscopy
4
How does CT scanning of the body usually take?
between 5-30 minutes
5
Which contrast materials are used in CT?
iodinated contrast
6
T1-weighted and T2-weighted terminology are used in
MRI
7
Which contrast agent is used in MRI?
paramagnetic contrast agent
8
How do gadolinium-enhanced tissues appear on T1-weighted images?
bright
9
How does gadolinium-enhanced fluid appear on T1-weighted images?
bright
10
Which method in radiology is used for detection of stenosis of carotid arteries?
Doppler ultrasound
11
Which method in radiology is used for detection of occlusion of carotid arteries?
Doppler ultrasound
12
Which method in radiology is used for assessing tumor blood flow?
Doppler ultrasound
13
Which method in radiology is used for determine fetal blood flow?
Doppler ultrasound
14
Hyperthermia and hypothermia terminology are used in
thermography
15
Which radiopharmaceuticals ideally suited for tumor imaging in PET scan?
18F‐ 2‐ deoxy‐ d‐ glucose
16
Which radioisotope is used for investigation of bone metabolism?
Ca-47
17
Which radioisotope is used for investigation of brain tumor?
C-11
18
Which radioisotope is used for investigation of thyroid gland?
I-123
19
Which radioisotope is used for investigation of lung diseases?
Kr-81
20
Which radioisotope is used for investigation of renal diseases
Tc-99m
21
During PET uptake of radiopharmaceuticals is known to be proportional to
tumor aggressiveness and growth rates
22
During PET radiopharmaceuticals uptake ratio of <2.5 is considered indicative of
a benign lesion
23
Which of them is appropriate for X-ray protection?
Shielding
24
What is duplex sonography?
Combined use of dopplerography and sonography
25
Which radiopharmaceuticals are used in positron emission tomography?
positron emitting isotopes
26
In what method of radiation diagnostics is the half live period of a radionuclide important?
radioisotope diagnostics
27
What rays are used in computed tomography?
X rays
28
In what examination, paramagnetic contrast agents are used?
MRI
29
What method can measure cardiac output or left to right shunts
Doppler echocardiography
30
When the X-ray beams were discovered?
1895
31
What method is used to obtain information about the blood flow velocity through the heart valves?
Doppler echocardiography
32
How does the intensity of X- rays depend on the distance?
inversely proportional from square of the distance
33
What method can detect and quantify valvular regurgitation of the heart?
Doppler echocardiography
34
Which factor is important for the passage ability of X-ray beams? 1) wavelength of rays 2) season 3) the patient's age 4) sex of the patient 5) density and atomic weight of substances
1,5
35
What is radiography?
production image of the body on film
36
Which of the following absorbs more x-ray beams?
bone
37
What is the main advantage of Fluoroscopy?
Gives the opportunity to study the function of organs
38
Which technique is used for catheterization of vessels on angiography?
Seldinger
39
What is fluorography?
mass-preventive X-ray examination method
40
The main contraindication to magnetic resonance imaging?
the presence in the patient’s body metallic foreign bodies
41
Which rays used in the Thermography?
infrared rays
42
Which part of the CT scan machine has the X ray source?
cylindrical gantry
43
What area especially is studied with using ultrasound M mode?
Heart
44
What property of radioactive substances is particularly important in radionuclide studies?
The half life time
45
The principle of MRI is based on the influence of magnetic field on this element. Name it?
hydrogen
46
By what factors is characterized the image in MRI?
The proton density and the relaxation time
47
What is the Duplex sonography?
The combined use of Doppler and sonography
48
How much is density of lungs on computed tomography
-650-850
49
Which of the following is a method of contrast study of cerebral vessels?
Angiography
50
Which of the following methods is particularly informative in diagnosis for diseases of the brain?
MRI