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WorksheetsCh. 11 Diagnostic Imaging Key Terms Review
Total questions: 18
Worksheet time: 9mins
What does the acronym ALARA stand for?
As Low As Reasonably Achievable
As Low As Radiographically Acceptable
As Low As Radiation Allowable
As Low As Radiographic Achievement
What term is used to describe tissue that transmits all the sound through to deeper tissues?
Anechoic
Hyperechoic
Isoechoic
Hypoechoic
What is the function of an Annular Array in radiography?
Arranges the crystals in concentric rings
Produces electrons in the x-ray tube
Restricts the x-ray beam to reduce scatter
Measures the distance from the target of the x-ray tube to the radiographic film
What is the role of the anode in the x-ray tube?
Produces x-rays when hit with electrons from the cathode
Restricts the x-ray beam to reduce scatter
Blurs the white grid lines on the radiograph
Measures the distance from the target of the x-ray tube to the radiographic film
What is the Bisecting Angle Technique used for in radiography?
To place the film as close to the intended tooth as possible
To restrict the x-ray beam to reduce scatter
To produce a continual stream of images
To enhance the distance when the sound beam traverses a cystic structure
What is the purpose of a Bucky in radiography?
Blurs the white grid lines on the radiograph
Produces electrons in the x-ray tube
Restricts the x-ray beam to reduce scatter
Measures the distance from the target of the x-ray tube to the radiographic film
What is the function of a collimator in an x-ray machine?
To restrict the x-ray beam to reduce scatter
To produce electrons in the x-ray tube
To blur the white grid lines on the radiograph
To measure the distance from the target of the x-ray tube to the radiographic film
What does the term "contrast" refer to in radiography?
Differences in radiographic density between adjacent areas on a radiographic image
The distance measured from the target of the x-ray tube to the radiographic film
The film's inherent ability to produce shades of gray
The lead strips placed at progressively increasing angles to match the divergence of the x-ray beam
What is the primary use of Direct Exposure Film in radiography?
To image the extremities or rostral mandible or maxilla
To restrict the x-ray beam to reduce scatter
To produce electrons in the x-ray tube
To blur the white grid lines on the radiograph
What does the term "echoic" mean in radiography?
The most of the sound is reflected back to the transducer
The film's inherent ability to produce shades of gray
The distance measured from the target of the x-ray tube to the radiographic film
The lead strips placed at progressively increasing angles to match the divergence of the x-ray beam
What does Kilovoltage Peak (kVp) determine in an x-ray tube?
The exposure time in seconds
The maximum voltage applied across the x-ray tube
The distance between the object and the film
The noninvasive method of imaging soft tissues
What does Maximum Permissible Dose (MPD) refer to?
The maximum voltage applied across an x-ray tube
The exposure time in seconds
The max dose for an occupationally exposed person
The distance between the source of the x-ray and the film
What does Milliamperage (mA) measure in radiography?
The exposure time in seconds
The distance between the object and the film
The illusion of the liver on the thoracic side of the diaphragm
The noninvasive method of imaging soft tissues
What is the Object-film Distance (OFD)?
The distance between the source of the x-ray and the film
The distance between the object being radiographed and the film or plate
The distance of blackness on a radiograph
The dose of radiation equivalent to the dose absorbed by tissue
What does Radiographic Density refer to?
The distance of blackness on a radiograph
The distance between the object and the film
The maximum voltage applied across an x-ray tube
The noninvasive method of imaging soft tissues
What is the purpose of the term "Radioopaque"?
To describe a noninvasive method of imaging soft tissues
To describe materials that absorb more of the radiation
To describe the distance between the object and the film
To describe the maximum dose for an occupationally exposed person
What does the term "Rem (Roentgen Equivalent in Man)" express?
The distance of blackness on a radiograph
The dose equivalent that results from exposure to ionizing radiation
The maximum voltage applied across an x-ray tube
The noninvasive method of imaging soft tissues
What is Ultrasonography?
A noninvasive method of imaging soft tissues
The distance between the object and the film
The maximum voltage applied across an x-ray tube
The dose equivalent that results from exposure to ionizing radiation
