#1
Which term refers to the production of a radiographic image?
Radiography
ExplanationRadiography is the process of producing images by exposing a patient to X-rays or other forms of radiation.
#2
In digital radiography, what is the role of a PACS (Picture Archiving and Communication System)?
To store, retrieve, and distribute digital images
ExplanationPACS (Picture Archiving and Communication System) is used in digital radiography to store, retrieve, and distribute digital medical images.
#3
Which imaging technique is often used for the detection of fractures and joint abnormalities?
Radiography
ExplanationRadiography is commonly used to detect fractures and joint abnormalities due to its ability to visualize bone structures.
#4
Which radiographic view is commonly used for imaging the spine from the side?
Lateral view
ExplanationThe lateral view is commonly used in radiography to image the spine from the side, providing a profile view.
#5
In radiographic positioning, what does the term 'oblique' mean?
At an angle other than right angle
ExplanationOblique positioning refers to placing the body or part of the body at an angle other than 90 degrees to the image receptor.
#6
What is the purpose of a 'grid' in radiographic imaging?
To reduce scatter radiation reaching the film
ExplanationA grid is used in radiographic imaging to absorb scattered radiation and improve image quality by reducing scatter reaching the film or detector.
#7
Which term describes the distance between the X-ray tube and the image receptor in radiography?
Source-to-image distance (SID)
ExplanationSource-to-image distance (SID) refers to the distance between the X-ray tube and the image receptor, affecting magnification and radiation exposure.
#8
What is the primary purpose of using contrast media in radiographic imaging?
To enhance visibility of internal structures
ExplanationContrast media are used in radiographic imaging to improve visualization of internal structures by highlighting differences in density or opacity.
#9
What is the purpose of the 'collimator' in radiographic imaging?
To control the amount of radiation reaching the patient
ExplanationA collimator in radiographic imaging restricts the X-ray beam to the desired size and shape, controlling the amount of radiation reaching the patient and improving image quality.
#10
What is the primary advantage of using digital radiography over traditional film-based radiography?
Faster image acquisition and processing
ExplanationDigital radiography offers faster image acquisition and processing compared to traditional film-based radiography, allowing for quicker diagnosis and workflow.
#11
Which imaging modality uses radiofrequency pulses and magnetic fields to create images?
MRI
ExplanationMRI (Magnetic Resonance Imaging) utilizes radiofrequency pulses and magnetic fields to generate detailed images of internal structures.
#12
In radiography, what does the term 'ALARA' stand for?
As Low As Reasonably Achievable
ExplanationALARA (As Low As Reasonably Achievable) is a principle in radiography emphasizing minimizing radiation exposure to patients and personnel while maintaining image quality.
#13
Which radiographic view is commonly used to evaluate the heart and great vessels?
Posteroanterior (PA) view
ExplanationThe Posteroanterior (PA) view is commonly used in radiography to image the heart and great vessels.
#14
What does the term 'fluoroscopy' refer to in radiography?
Real-time imaging using continuous X-ray exposure
ExplanationFluoroscopy involves real-time imaging using continuous X-ray exposure, allowing visualization of dynamic processes such as swallowing or cardiac catheterization.
#15
Which imaging technique uses ionizing radiation to produce detailed cross-sectional images of the body?
Computed Tomography (CT)
ExplanationComputed Tomography (CT) utilizes ionizing radiation to create detailed cross-sectional images of the body, aiding in diagnosis and treatment planning.
#16
In mammography, what is the purpose of compression of the breast?
To immobilize the breast and spread out the tissue
ExplanationCompression of the breast in mammography immobilizes the breast, spreads out the breast tissue, and reduces motion artifact, improving image quality and accuracy of detection.