50 Radiology Interview Questions and Answers 2023 Information


Except you are a radiology professional, you probably know little about radiology interview questions. Therefore, I have put together this article to help you prepare for the interview.

Radiology Interview Questions and Answers 2023

1. Make a case for the principle of X-ray in radiology?

Answer: X-rays area unit the sort of radiation with a particular wavelength.

Once it passes through the organic structure, completely different tissues absorb this radiation otherwise, relying upon the density of the tissues.

Supported the body tissue and bone density, it’ll produce a picture of the film.

2. What area unit is the radiation and technology that the specialist uses?

Answer: Radiologist uses an Associate in Nursing array of imaging technologies that feature the following:

1. X-ray radiography.

2. Ultrasound.

3. Computed picturing.

4. Nuclear medicines.

5. Positron emission picturing (PET).

6. Magnetic Resonance Imaging (MRI).

3. Mention what’s unit to live X-Rays exposure?

Answer: The unit of X-ray exposure is impulses.

4. What form of the image can it manufacture once victimization of the bisecting angle technique, a directive for the x-ray beam perpendicular to the long axis of the teeth?

Answer: It can manufacture Associate in Nursing elongation of tooth pictures.

5. Is it dangerous if an individual is exposed to x-rays frequently?

Answer: If they expose an individual to x-rays for medical purposes, then it shouldn’t be dangerous because it emits an occasional level of radiation. However, if he/she is exposed for an extended period, then it’ll be dangerous.

6. In the US, the un agency regulates the devices used for radiation and monitors their usage.

Answer: In the U.S., The Food and Drug Administration (FDA) monitors the manufacture and sale of the devices. While State Health Department keeps watch on the employment and unleashes of hot materials together with manufacture and sale.

Nuclear {regulatory Commission|NRC|independent agency} (Nuclear Regulatory Commission) and DOE (Department of Energy) can monitor. However, individuals work with numerous devices and hot materials.

7. What’s associated with nursing early clinical signs of excessive acute exposure to radiation?

Answer: The first clinical sign of excessive acute exposure to radiation is erythroderma.

8. Make a case for what does one mean by the latent result in radiology?

Answer: The latent result in radiology is seen in the time between the exposure to radiation and also the findings of clinical signs.

9. What’s the best temperature of the developer resolution during a manual film process setup?

Answer: The best temperature of the developer resolution is 68 degrees F.

10. Make a case for what’s an emulsion?

Answer: Emulsion is the most vital element of photographic film. It’s created from silver salt crystals suspended in gelatin. The x-rays from the gathering screens move with emulsion and rework info to the film.

11. Why a grid is typically placed during a cassette?

Answer: A grid is typically placed in a container to avoid scatter radiation from the film and decrease the detail of the image.

12. What’s the kind of radiation utilized in dental x-rays?

Answer: In dental x-rays, an electromagnetic radiation area unit is used.

13. List out the variations between X-rays and MRI?

Answer :

1. To capture the internal read of the body, X-ray uses radiation–tomography uses the water in our body and also the nucleon within the water molecules to capture the interior read of the body. It uses magnetic radiation.

2. X-rays area unit principally won’t study the structure of bones and teeth.–tomography area unit used for multiple functions like analysis of sentimental tissue, funiculus injury, ligament, and sinew injury, brain tumors, etc.

3. A complete scam is finished in a few seconds. Scanning generally runs for regarding half-hour.

4. Excess exposure might cause irreversible harm like cancer–there are no facet effects of tomography.

5. X-ray doesn’t have the potency to capture a picture from a unique angle, the patient themselves needs to regulate their position for taking an image from a unique angle.–3D isotropous imaging is manufactured and in the other plane with tomography.

6. X-rays area units are cheaper and have fewer areas occupied than tomography–tomography desires a lot of areas, and it’s dear compared to X-rays.

14. Why lead foil sheet within the film packet is used?

Answer: Within the film packet, they employed the lead foil sheet to safeguard the film from back-scattered radiation.

15. Make a case for how the electron tube works?

Answer: X-ray tube area unit energy converter; it receives the power and converts into 2 alternative forms X-radiation and warmth.

The electrons are unit reborn to protons info of X-radiation, whereas the warmth emitted is considered Associate in nursing undesirable products.

16. What will the associate in nursing electron tube consist of?

Answer: Associate in Nursing electron tube comprises :

1. Cathode.

2. Anode.

3. Expansion below.

4. Tube cover.

5. Tube housing.

6. Cooling di-electric oil.

7. Rotor.

6. Induction mechanical device.

7. Tube window.

17. What’s the unit of mensuration radiation dosage?


Answer: The scientific unit of mensuration for radiation dose in millisievert (MSV) alternative radiation dose mensuration includes rad, rem, roentgen, sievert, and grey.

18. What area unit of the cells that area unit most sensitive to x-radiation?

Answer: the foremost sensitive cells in humans to X- radiation area unit is little lymphocytes. It means that overexposure to X-radiation can initially have an effect on your system.

19. Make a case for what the densitometer is employed for?

Answer: A densitometer is employed to check the connection between the intensity of the exposure of the film and also the blackness once processed.

More Radiology Interview Questions

20. What’s the upkeep method in an x-ray unit?

Answer: Maintenance processes in the X-ray unit include:

Check for radiation discharge: Once a month you’ll be able to check for radiation leakage by checking radiation shielding ( broken window, broken collimator, glass or shutter, hole within the wall).

Operation in Positive Beam Limitation (PBL): ensure that the x-rays area unit is inhibited once within the PBL model and not at 72” or 42” SID. they could do this on a day-to-day basis.

Check for filter or mirror: If kV is larger than 49kV even once the collimator filter is off, exposure to x-rays should be inhibited. The prepared lightweight ought to be turned off. They may do this check on a day-to-day basis.

21. Make a case for radiology?

Answer: Radiology could be a medicine that employs the employment of imaging to diagnose and treat unwellness envisioned inside the organic structure.

Radiologists use an Associate in Nursing array of imaging technologies (such as X-ray radiography, ultrasound, X-raying (CT), and medicine.

Also, antilepton emission picturing (PET) and resonance imaging (MRI) to diagnose or treat diseases.

Interventional radiology is the performance of (usually minimally invasive) medical procedures with the steering of imaging technologies.

22. What area units are some new areas in radiology?

Answer: Combined imaging techniques, like PET-CT, supply exciting future opportunities for unwellness detection and observance

1. Functional mister imaging.

2. Molecular imaging.

3. Cardiac mister and CT.

4. Breast tomography.

5. Expanding interventional techniques.

23. What conditions can you unremarkably see as a diagnostic radiologist?

Answer: There are units way too several to list.

Any unwellness or patient presentation that may presumably have a physical/imaging manifestation from the os vertex to the ideas of the toes could be a risk within the radiology department.

There is a ton to grasp, however, that makes it difficult and satisfying!

24. What’s the decision frequency?

Answer: Throughout residency: This varies from program to program looking at the range(the amount, the quantity) of websites coated and the number of residents.

At John Bach McMaster, we tend to do decisions roughly one in seven or eight (averages bent on 3-4 calls per month). we tend to cowl 2 sites on every decision shift.

Our hospitals have established a distinction policy whereby residents don’t get to travel between sites, to hide contrast-enhanced examinations.

As an employee radiologist, your decision frequency can depend upon the number of radiologists in your observation, likewise because of the imaging modalities and technologist/imaging hours your hospital offers.

As a rough estimate, if there are 4 radiologists in your group, you will be on-call 1 in 4; if there are 13 of you, then it’s 1 in 13, etc.

This may change if you have specialized skills, such as in interventional radiology.

The other determinant of the call depends on whether you are working at an academic center (with resident and fellow call coverage) or in a community setting.

For the latter, another factor that influences the busyness of your call is whether your center provides 24/7 CT, US, or MRI imaging.

25. What is the unit of time used to measure X-ray exposure?

Answer: Impulses.

26. A diagnostic film is produced using 10ma and 5 seconds. What exposure time is needed to produce the same film at 20ma?

Answer:.25 seconds.

Radiology Interview Questions

27. A quality radiograph is obtained using a 4-inch pid and an exposure time of 3 impulses. The pid was removed and replaced with a 16-inch pid. What should the new exposure time be to maintain image density?

Answer: 48 impulses.

28. Who discovered the X-radiation?

Answer: Roentgen discovered the X-radiation.

29. When does ionization occur?

Answer: when atoms lose electrons; they become deficient in negative charges and, therefore, behave like positively charged atoms.

30. How do you go about securing buy-in from administration, physicians, department heads, and your own staff?

“I go about ensuring buy-in from my colleagues through being a clear and honest communicator. My ideas are always well thought out and easy to follow, which helps significantly.”

31. X-rays and Gamma rays present a health risk because they are a form of ionizing radiation, which means that the radiation has enough energy to:

32. The main advantage of real-time radiography over film is:

They can perform a more rapid inspection

33. What is Spiral Ct?

Answer: Rotates continuously around the body, following a spiral path to make cross-sectional pictures of the body.

34. What is Virtual Endoscopy?

Answer: Virtual endoscopy is a new technique that uses spiral CT. It allows doctors to see inside organs and other structures without surgery or special instruments.

35. How long will it take to do a ct scan?

Answer: Expect the exam to last no longer than an hour, depending on the preparation needed and whether it includes the use of a contrast medium.

The scan itself may take less than a minute on the newest machines. Most scans take just a few minutes to complete.

36. Will you need someone to drive for me after the CT scan?

Answer: No, the CT scan is a safe test that will not affect your ability to drive.

37. How about 3d viewing?

Answer: CT-Volume allows you to easily create 3D views and movies from your cross-sectional data.

38. Can you scan multiple samples?

Answer: Yes. On most systems, you can put multiple samples in the sample tube and then select different scanning regions in the acquisition software.

39. Can you micro-CT a living animal?

Answer: Yes, the SkyScan 1176 and 1278 can scan living mice and rats. 1176 can also scan the hind limb of some larger animals.

40. Can you micro-CT a living animal?

Answer: Yes, the SkyScan 1176 and 1278 are capable of scanning living mice and rats. 1176 can also scan the hind limb of some larger animals.

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